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1989-06-13
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.rm 70
.ps 3000
.lm 1
.i-1;1 _@
.s 1
This command opens an indirect file for command input. It is identical to
the TAKE command. The format of the command is:
.lit
Kermit-11>@ file-specification
.eli
where 'file-specification' is any valid file specification on the system
on which the server Kermit is running.
.s 1
.i-1;1 BINARY FILES
.s 1
#Binary files are those files which require all eight bits in each character.
Text files, like program source files, compiler listing and RUNOFF files,
normally use only the low seven bits in each character. Binary files
include task images, save images, RMS relative and indexed files and other
special types of files.
.br
#In order for Kermit to transfer these files Kermit-11 needs an eight bit
line, which for most PDP-11 systems is the default. Additionally, most
Kermits need to be set into a binary mode to transfer such files. The
command to do this is usually the 'SET FILETYPE BINARY' command, or
'SET FIL BIN' for short. Since various Kermit implementations are at
different stages of developement, most Kermit links can NOT handle
binary files automatically, thus the above SET command must be given
to BOTH Kermits prior to a binary file transfer. One important note
is that the VMS Kermit-32 requires a SET FIL TYP FIX to properly send
and receive binary files. For example, a Kermit-11 connected to a VMS
system as a local Kermit would first log onto the VAX and invoke
Kermit-32 and give the commands SET FIL TYP FIX and SER. Then one
would escape back to the Kermit-11 (control \ C) and give Kermit-11
the command SET FIL BIN (or the same, SET FIL TYP FIX).
At this point the Kermit-11 can use the GET
and SEND commands to transfer binary files like task images and save
images.
.br
#As a side note, there may be cases where the proper SET commands have
been given but the binary file does not transfer correctly. This has
been noted on VMS when a task image is copied from tape via FLX to
disk and then sent over to a PDP-11 using Kermit. The file was found
to contain carriage control after it was sent to the PDP-11. This was
because when FLX created it on the VAX, the file was created with fixed
512 records with carriage return control. VMS Kermit honored this and sent
a CRLF every 512 bytes.
.br
#Please note that transfering text files when one or both of the Kermits
are set to binary mode can result in an unusable file after transfer
because of the possibility of transfering
imbedded record control information.
.s 1
#Version 2.16 (and later versions)
of Kermit-11, however, can do the switch into binary mode
automatically if the file attributes (and protection code for RSTS/E)
indicate that the file is most likely a binary file. Additionally,
two Kermit-11's connected to each other will both do the 'right' thing
if this is the case by the sending Kermit-11 telling the receiving
Kermit-11 to switch to binary mode. In this case, the sending Kermit-11
will also send a copy of the file attributes over so the receiving
Kermit-11 can properly set this when the file is closed. Thus two
Kermit-11's connected to each other can send task images, RMS indexed files
and so on.
.s 1
.i-1;1 BYE
.s 1
The BYE command will cause Kermit-11 (when in local mode) to tell the
other Kermit (which should be in server mode) to exit from Kermit and
if applicable terminate its job (or process, etc.). When Kermit-11
receives the acknowledgement that this is being done, it will prompt
for another command. The DISCONNECT command should always follow the BYE
command. The format for BYE is:
.lit
Kermit-11>BYE
.eli
.s 1
.i-1;1 COMMAND-LINE
.s 1
Kermit, if the task is installed on RSX11M/M+ or has a CCL name for
it for RSTS/E, can get a command from the command-line and execute it
immediately. For
all commands other than SERVER, Kermit will exit upon completion of
the command. In the case of the SERVER command, Kermit will return
to interactive mode if the local Kermit sends it a FINISH command.
.lit
> KERMIT SERVER
$ KERMIT HELP
.eli
.i-1;1 CONNECT
.s 1
The CONNECT command will allow you to connect in as a virtual terminal
over the line that was specified by the SET LINE command. (Using the CONNECT
command before using the SET LINE command will result in an error message.)
The terminal line must be one which is accessable to the user. The format
of the CONNECT command is:
.lit
Kermit-11>CONNECT
.eli
The distributed RSX11M/M+ task has been built with the /PR:0 switch to enable
the task to change other terminal settings. Addtionally, for RSX11M/M+, the
MCR command SET /SLAVE=TTnn: should be done before entering Kermit-11.
.s 1
If you are running K11POS.TSK on a PRO/350, Kermit will set the line to XK0:
and the speed to 9600 by default.
.s 1
Please note that Kermit-11 CANNOT change the speed of a DL11 type interface,
nor can it change the speed of a PDT-150 modem port (use SPEED.SAV).
.s 1
The following is an example of using a Racal-Vadic VA212 autodialing modem
to log into a remote TOPS-20 system. There are two points at which there
is no echoing of the user input. The first is the typing of a control-E <cr>
sequence to get the attention of the modem, which responds by sending the
string 'HELLO:I'M READY'. The second is the typing of the local 'escape
sequence', which by default is control _\ followed by a 'C'. The control
backslash informs the terminal emulator that the next character is a command.
In this case, the command was 'C', which means to return to the local PDP-11
system. Control _\ ? would print a help message.
.lit
$ kermit
Kermit-11 V2.13
Kermit-11>set logfile 20.log
Kermit-11>set deb console
Kermit-11>set lin tt58:
Link device set to TT58:
Kermit-11>set spe 1200
Kermit-11>con
Connecting to TT58:
HELLO:I'M READY
*d
NUMBER?
3
9-1-212-123-4567
9-1-212-123-4567
DIALING...
ANSWER TONE
ON LINE
enter class 4
class 004 start
CU20B
@log xx.abcdef
CU20B, TOPS-20 Monitor 5.1(5101)-2
Job 28, TTY32, 2-Apr-84 4:15:24PM
Previous login was 2-Apr-84 4:10:16PM
.
.
.
.
@log
[Confirm]
Logged out Job 28, User XX.ABCDEF , TTY 32,
at 2-Apr-84 16:19:34, Used 0:00:11 in 0:04:10
Kermit-11>disc
KERMIT link TT58: disconnected
Kermit-11>exit
$ logout
.eli
.i-1;1 COPY
.s 1
The COPY command creates
a copy of the input file. The Kermit-11 COPY command does
NOT support wildcards in the filename, and while COPY does use multiblock
buffering it is usually more efficient to use
the system utilty PIP or the DCL command COPY for this.
COPY uses RMS block i/o for both RSTS and RSX.
Any executable RSTS file (*.TSK, *.BAC and *.SAV) copied will not be
useable until it's run time system name and protection code is reset.
.lit
Kermit-11> COPY
From: ABCDEF.DAT
To : FUBAR.LST
or
Kermit-11> COPY ABCDEF.DAT FUBAR.LST
.eli
.s 1
.i-1;1 CWD
.s 1
The CWD command alters the current device and UIC (PPN) default. Thus, the
command 'CWD [200,200]' would cause all following file operations to insert
the string [200,200] unless an explicit directory name was given. This is
identical to the SET DEF command. Passwords are ignored.
.s 1
.i-1;1 DECNET
.s 1
Kermit-11 can access DECnet files if built with DAP support. This is
included in the task images K11NRS.TSK and K11RSX.TSK as distributed.
DECnet support has been tested for RSX11M. See SET DEFAULT for more
information.
.s 1
.i-1;1 DELETE
.s 1
The DELETE command will delete the specified file or file group from the
system. Wildcards are permitted.
.lit
Kermit-11>DELETE FUBAR.MAC
Kermit-11>DELETE FUBAR.*
.eli
.s 1
.i-1;1 DIAL
.s 1
The DIAL command will take the number specified and attempt to get the
attached modem to dial the phone number. The SET MODEM command must have
be used first, except in the case of PRO/TMS. Additionally, if no line has
been set, the SET LINE command must be used. Note that for the PRO/350, an
implicit SET LINE command is done at startup for XK: or XC:.
.br
Once a connection is made, you will be returned to the Kermit-11 command
line prompt, at which time you can use the CONNECT command to attach to
the remote system.
.br
The case of PRO/TMS is special. This is an internal modem, accessed via
device XT1:. In this case, the user MUST suplly, in the dial string, any
TMS formatting or control characters. The modem type is selected automatically
if you do a SET LINE XT0: or SET LINE XT1:
.s 1
.i-1;1 DIRECT
.s 1
The DIRECT command will display the current default directory when
used in the format:
.lit
Kermit-11>DIRECT
.eli
If a directory other than the current default directory is desired then
DIRECT may be used in the format:
.lit
Kermit-11>DIRECT file-specification
.eli
where 'file-specification' is any legitimate combination of device name,
UIC or PPN, and a filename which can include wild-carding characters.
.s 1
.i-1;1 DISCONNECT
.s 1
The DISCONNECT command causes Kermit-11 to 'hang-up' the line which was
specified with the SET LINE command and connected with the CONNECT
command. The format is:
.lit
Kermit-11>DISCONNECT
.eli
.s 1
.i-1;1 DISPLAY
.s 1
The Display command will format and print global read/write data, defined
in K11MAC.MAC, to the terminal, as in:
.lit
Kermit-11>DISP PROMPT
.eli
.s 1
.i-1;1 ERASE
.s 1
The ERASE command will ERASE the specified file or file group from the
system. Wildcards are permitted.
.lit
Kermit-11>ERASE FUBAR.MAC
Kermit-11>ERASE FUBAR.*
.eli
The ERASE command is identical to the DELETE command.
.s 1
.i-1;1 EXIT
.s 1
The EXIT command will cause Kermit to return to the command level. This
command is the same as the QUIT command. The format is:
.lit
Kermit-11>EXIT
.eli
.s 1
.i-1;1 FINISH
.s 1
The FINISH command will tell Kermit-11, which is in local mode, to signal
the other Kermit to exit from server mode. When Kermit-11 has received
acknowledgement that this is being done, it will prompt for another command.
The command format is:
.lit
Kermit-11>FINISH
.eli
.s 1
.i-1;1 GET
.s 1
The GET command tells the remote Kermit which is in server mode to get
a file or group of files. The format for this command is:
.lit
Kermit-11>GET file-specification
.eli
where 'file-specification' may include any legitimate device, PPN or UIC as
well as the file specification. Wildcarding may be used in the file-spec.
to obtain a group of files.
.s 1
.i-1;1 HANGUP
.s 1
The HANGUP command will drop the remote line specified by the SET LINE
command and connected by the CONNECT command. This command presumes that
the modem cable has the DTR line (pin 20) connected.
The same function is
performed by the DISCONNECT command. The format of the HANGUP command is:
.lit
Kermit-11>HANGUP
.eli
.s 1
.i-1;1 HELP-FILE
.s 1
The Kermit-11 help file (this file) should be located as follows:
.lit
For RSTS/E, RSX11M/M+
LB:[1,2]K11HLP.HLP or
SY:[1,2]K11HLP.HLP or
KERMIT:K11HLP.HLP or
HELP:K11HLP.HLP
For RT11
DK:K11HLP.HLP or
SY:K11HLP.HLP
For P/OS on the PRO/350
[001002]K11HLP.HLP
.eli
.s 1
.i-1;1 HOST
.s 1
The HOST command is identical to the SYSTEM command in that it takes the
command and spawns a process to execute the command.
.lit
Kermit-11>HOST SHO TER
Current settings for KB6:
Broadcast CRFill=0 NoEcho NoHostSync
Lowercase NoParity NoScope Speed not settable
Tab NoTTSync Width=80
Kermit-11>
.eli
.s 1
.i-1;1 INTRODUCTION
.s 1
The KERMIT file transfer protocol is intended for use in an environment where
there may be a diverse mixture of computers -- micros, personal computers,
workstations, laboratory computers, timesharing systems -- from a variety of
manufacturers. All these systems need have in common is the ability to
communicate in ASCII over ordinary serial telecommunication lines.
.s 1
KERMIT was originally designed at Columbia University to meet the need for file
transfer between our DECSYSTEM-20 and IBM 370-series mainframes and various
microcomputers. It turned out that the diverse characteristics of these three
kinds of systems resulted in a design that was general enough to fit almost any
system. The IBM mainframe, in particular, strains most common assumptions
about how computers communicate.
.s 1
The KERMIT protocol is specifically designed for character-oriented
transmission
over serial telecommunication lines. The design allows for the restrictions
and peculiarities of the medium and the requirements of diverse operating
environments -- buffering, duplex, parity, character set, file organization,
etc. The protocol is carried out by KERMIT programs on each end of the serial
connection sending "packets" back and forth; the sender sends file names, file
contents, and control information; the receiver acknowledges (positively or
negatively) each packet.
.s 1
The packets have a layered design, in keeping with the ANSI and ISO
philosophies, with the outermost fields used by the data link layer to verify
data integrity, the next by the session layer to verify continuity, and the
data itself at the application level.
.s 1
Connections between systems are established by the ordinary user. In a typical
case, the user runs KERMIT on a microcomputer, enters terminal emulation,
connects to a remote host computer (perhaps by dialing up), logs in, runs
KERMIT
on the remote host, and then issues commands to that KERMIT to start a file
transfer, "escapes" back to the micro, and issues commands to that KERMIT to
start its side of the file transfer. Files may be transferred singly or in
groups.
.s 1
Basic KERMIT provides only file transfer, and that is provided for sequential
files only, though the protocol attempts to allow for various types of
sequential files. Microcomputer implementations of KERMIT are also expected to
provide terminal emulation, to facilitate the initial connection.
.s 1
More advanced implementations simplify the user interface somewhat by allowing
the KERMIT on the remote host to run as a "server", which can transfer
files in either direction upon command from the local "user" Kermit. The server
can also provide additional functionality, such as file management, messages,
mail, and so forth. Other optional features also exist, including a
variety of block check types, a mechanism for passing 8-bit data through a
7-bit communication link, a way to compressing a repeated sequence of
characters, and so forth.
.s 1
As local area networks become more popular, inexpensive, and standardized, the
demand for KERMIT and similar protocols may dwindle, but will never wither away
entirely. Unlike hardwired networks, KERMIT gives the ordinary user the power
to establish reliable error-free connections between any two computers; this
may always be necessary for one-shot or long-haul connections.
.s 1
.i-1;1 LOCAL
.s 1
The LOCAL command can be used to prefix any Kermit command to insure
that the command so prefixed will be carried out by the user's own
kermit. All commands are local by default with the exceptions of BYE,
FINISH,and GET. The LOCAL command format is:
.lit
Kermit-11>LOCAL Kermit-command-name
.eli
.s 1
.i-1;1 LOGFILE
.s 1
The LOGFILE command creates the debug and session logging file. It is
identical to the SET LOGFILE command.
.lit
Kermit-11>LOGFILE FUBAR.LOG
.eli
.s 1
.i-1;1 Modems
.s 1
The question of how to set one's modem (if applicable) depends on a number
of factors. For this discusion, we will be limited to considerations under
RSTS/E (and to a limited degree, RSX and P/OS). This discussion is relavent to
dialing out from an attached line. Please note that the following comments
will not be applicable to all types of modems.
.br
.i-1;2 RSTS/E
.s 1
RSTS/E does not control modems signals in the manner that RSX or VMS does.
VMS always asserts DTR whereas RSTS/E will not assert DTR until the terminal
driver can see RCD (also known as DCD) which is pin 8 (eight) for the RS232
connection. If the interface is a DH11 with full modem control, a cable with
all signals connected will work fine. However, if the interface is a DZ11 we
have the problem that the DZ has only partial modem control. To connect
directly to a modem (like a VADIC 212, sorry, no DEC modems here) we must do
one of two things:
.s 1
(1) Force the modem (via strapping options or whatever) to assert RCD (DCD) pin
8, thus RSTS/E will see carrier and raise DTR (pin 20 for RS232)
.s 1
(2) Set the terminal to LOCAL (RSTS/E V9 syntax 'SET TER TTxx:/NODIAL/PERM')
and break pin 20 (DTR) and connect pin 20 to 8 on the modem side. This will
cause the modem to be able to dial out and allow RSTS/E to connect to it.
You will also need to have the modem assert RCD, pin 8. Keep in mind that the
Kermit-11 command DISCONNECT (or HANGUP) will not function if a line is set to
NODIAL (INIT SET syntax 'LOCAL').
This has been tested
on a Racal Vadic VA212.
.s 1
For those of you who have port switches such as the Gandalf type, there is
one additional problem.
.br
For Gandalf, suppose you want to connect a DZ11 line to to an AMTB2. You
will have a problem, in that the Gandalf AMTB2 wants to see RCD (DCD) asserted
to make a connection. What you may need to do is this:
.lit
Make a cable for the DZ11 to AMTB2 port as follows:
CPU side AMTB2 side
20--|
8---|-----------8
7---------------7
3---------------2
2---------------3
Note that 20 is tied to 8 on the CPU side.
Also, 2 is swapped for 3.
.eli
Then, the Kermit-11 command SET DTR, which forces RSTS to raise DTR for
30 seconds,
will cause the DTR signal to
loop back to the RCD (DCD) signal and thus tell RSTS that there is carrier
detect which will raise DTR (the chicken or egg question)
and get things rolling. The Kermit-11
HANGUP (or DISCONNECT) command will drop DTR and force the modem to
break the connection.
.i-1;2 P/OS (Pro 3xx)
.s 1
Under P/OS the author has used (1) a DLV11 line in the 11/23+ at home at
9600 baud without any modem signals, (2) a link using only 2,3 and 7 to a
Racal Vadic 3212 (not an autodialer) and (3) a Gandalf LDS125 modem. In
all cases there were no problems. It would seem that the PRO/350 comm port
does not need the modem signals. This will, of course, mean that the HANGUP
(or DISCONNECT) commands will NOT function since DTR is not being passed.
Please note that you must ensure that pins 2 and 3 (RXD and TXD) are swapped if
you are not using some type of modem (one of the things a NULL modem cable does
).
.s 1
.i-1;2 RSX11M/M+
.s 1
The setting of the connected line (SET LINE TTnn:) depends on the signals
that the modem can assert (see HELP MODEM RSTS). Since the author does not
run RSX on a system with modem lines (the system is an 11/23+, DLV11 lines),
the command SET RSX TC.DLU value has been added (though
untested). This command can be used to set the TC.DLU parameter to 1 or 2.
A value of one (1) (SET RSX TC 1) is normal for remote lines,
indeed, it is the result of the MCR command SET/REMOTE=TTnn:. However, it may
be the case that TC.DLU needs to be set to two (2) (SET RSX TC.DLU 2). If this
SET command is used, Kermit-11 will alter it (if different from the current
setting) and wait five (5) seconds for the change to come into effect.
This is only applicable to modem controlled lines. There is no way (at this
time) to change the TC.DLU setting to two via MCR or DCL commands
(perhaps we need a SET /DIALOUT=TTnn:).
.s 1
For more information, please consult K11USR.DOC
.s 1
.i-1;1 MicroRSX
.s 1
Operation under MicroRSX is identical to that under RSX11M+ and, for the most
part, P/OS. The image K11POS.TSK is used, as this image is linked to the
resident library RMSRES, thus allowing access to named directories under
MicroRSX.
.s 1
.i-1;1 QUIT
.s 1
The QUIT command will cause Kermit-11 to return to the command level. This
command is the same as the EXIT command. The format is:
.lit
Kermit-11>QUIT
.eli
.s 1
.i-1;1 PARITY
.s 1
Sometimes two Kermit's may appear to be sending the correct packets
but one or the other of them will constantly reject the same packet.
This usually will be seen when the requesting Kermit asks a server
for a file and then rejects the server's first packet, doing so until
the retry threshold is reached. This can often be caused by parity being
introduced somewhere, and one or both of the Kermit's do not know this.
This can happen when a modem is generating parity or when a private
or public network is doing so.
Some Kermit's have a SET PARITY command to assist in this. If the
communications link is introducing parity, a simple fix is to tell
each Kermit the command SET PARITY SPACE. This will force the Kermit
program to always remove bit 7 from the incoming data. Normally this
will not affect file transfer since many Kermit implementations support
what is called eight bit prefixing, which is a method of encoding an
eight bit data item to fit over a seven bit link. See HELP SET PARITY
for more information.
.s 1
.i-1;1 PRINT
.s 1
The PRINT command will cause the specified file(s) to be printed on the
system line printer. This command may not function on all systems.
.s 1
.i-1;1 PRO/350
.s 1
.i-1;2 RT11 version 5.1
.s 1
Kermit-11 runs under the RT11 version 5.1 XM monitor by using the DIGITAL
distributed XC handler. The XC handler supports several useful functions
such as start/stop break, variable size reads and driver/line reset. Due
to an apparent bug in the driver, Kermit has to use flow control (XON/XOFF)
to control the sending Kermit at high speeds (9600 baud). This has the
undesireable effect of slowing the transfer down by about 15 percent.
This is enabled by typing SET RTFLOW ON.
.br
As an alternative, the XC handler can be modified to avoid all problems
with buffer overflows by increasing the buffer size in XL.MAC. See the
file K11PRT.MAC for information regarding this.
.s 1
Note the the XC handler does not accept _.SPFUN calls to change the baud
rate, rather, you must set it prior to entering Kermit-11 as in
SET XC:SPEED=9600. The Kermit DISCONNECT command will not function.
Kermit will always fake a SET LINE XC0: at startup on the PRO/350.
Unlike the standard RT11 Kermit-11, you DO NOT need to use the SET RTFLOW
ON command to enforce flow control during the CONNECT command. The XC
driver handles this automatically for you.
.br
To send a BREAK while in CONNECT mode, type your local escape character
(normally a CTRL _\) followed by a B.
.s 1
.i-1;2 P/OS version 2.0
.s 1
Kermit-11 will run on under P/OS on the Pro/350, the executable file is
called K11POS.TSK. It does NOT (and cannot) run from a menu, the normal
way to run it is via the RUN command in DCL. It will support the Kermit-11
attribute packets, thus a PRO/350 connected to a PDP-11 host can
transparently handle binary and other types of files. The P/OS Kermit-11
can be run either as a local Kermit or a Kermit server. This has been
tested under P/OS version 2 connected to both a PDP-11/23+ and PDP-11/70 RSTS/E
host.
.br
When Kermit-11 is started on the PRO, it will automatically do a SET LINE XK0:
and a SET SPEED 9600. You can, of course, change the speed to whatever you
need with the SET SPEED command. The line should be left as XK0:.
.s 1
.i-1;1 RECEIVE
.s 1
The RECEIVE command will put Kermit-11 into remote mode to wait for a
single file transfer transaction. Kermit-11 will wait for a file transfer
initialization from the other kermit. This command is useful if the other
Kermit does not support local server commands. Command format is:
.lit
Kermit-11>RECEIVE
.eli
Please note that this version of Kermit-11 (Version 1) does NOT
support the RECEIVE command in the format:
.lit
Kermit-11>RECEIVE filename
.eli
.s 1
.i-1;1 REMOTE
.s 1
The REMOTE command is used as a prefix to indicate to Kermit-11 that the
command so prefixed is to be executed by the other (remote) Kermit server.
Command format:
.lit
Kermit-11>REMOTE
.eli
will return a prompt requesting a command name:
.lit
Remote Kermit cmd ?
.eli
REMOTE can also be used with a command name as an argument:
.lit
Kermit-11>REMOTE command-name
.eli
Please see HELP REMOTE command name for details and HELP SERVER for
general Kermit server operation.
.s 1
.i-1;2 BYE
.s 1
The REMOTE BYE command will
cause Kermit-11 (when in local mode) to tell the
other Kermit (which should be in server mode) to exit from Kermit and
if applicable terminate its job (or process, etc.). When Kermit-11
receives the acknowledgement that this is being done, it will prompt
for another command. The DISCONNECT command should always follow. This
command (REMOTE BYE) is the same as the BYE command. The command format is:
.lit
Kermit-11>REMOTE BYE
or
Kermit-11>REMOTE
Remote Kermit cmd ?BYE
.eli
.s 1
.i-1;2 COPY
.s 1
The remote copy is just like the local copy command in that it creates
a copy of the input file. Like the local Kermit-11 COPY command it does
NOT support wildcards in the filename, and while COPY does use multiblock
buffering it is usually more efficient to use
the system utilty PIP or the DCL command COPY for this.
COPY uses RMS block i/o for both RSTS and RSX.
Any executable RSTS file (*.TSK, *.BAC and *.SAV) copied will not be
useable until it's run time system name and protection code is reset.
.lit
Kermit-11>REMOTE COPY
From: ABCDEF.DAT
To : FUBAR.LST
or
Kermit-11>REMOTE COPY ABCDEF.DAT FUBAR.LST
.eli
.s 1
.i-1;2 CWD
.s 1
The REMOTE CWD command will cause Kermit-11 to send to the Kermit server
the new default directory. If the server is a Kermit-11, passwords are
ignored. See HELP CWD and HELP SET DEF for further information.
.s 1
.i-1;2 DIRECT
.s 1
The remote DIRECT command will tell the remote Kermit server to send a
directory listing over the connection. Not all Kermit servers have this
implemented.
.lit
Kermit-11>REM DIR *.MAC
.eli
The above example would tell the remote server to send a directory listing
of all files ending with a .MAC filetype.
.s 1
.i-1;2 ERASE
.s 1
The remote ERASE command will tell the remote Kermit server to delete any
files matching the file specification. For a Kermit-11 server, this can
include wildcard characters.
.lit
Kermit-11>REM ERASE *.MAC
Files deleted:
SY:[2,2]FUBAR.MAC
SY:[2,2]HLPSUB.MAC
Kermit-11>
.eli
The remote Kermit server may respond with the filenames deleted, the above
example is what a Kermit-11 server would respond with.
.s 1
.i-1;2 FINISH
.s 1
The REMOTE FINISH command will tell Kermit-11 ,
which is in local mode, to signal
the other Kermit to exit from server mode. When Kermit-11 has received
acknowledgement that this is being done it will prompt for another command.
REMOTE FINISH is the same as the FINISH command.
The command format is:
.lit
Kermit-11>REMOTE FINISH
or
Kermit-11>REMOTE
Remote Kermit cmd ?FINISH
.eli
.s 1
.i-1;2 GET
.s 1
The REMOTE GET command tells the remote Kermit
which is in server mode to get
a file or group of files. REMOTE GET is the same as the GET command.
The format for this command is:
.lit
Kermit-11>REMOTE GET
or
Kermit-11>REMOTE
Remote Kermit cmd ?GET
.eli
.s 1
.i-1;2 HELP
.s 1
The REMOTE HELP command instructs a remote Kermit server to send a list
of remote commands that it can process.
.s 1
.i-1;2 HOST
.s 1
The REMOTE HOST command sends the comamnd over to the remote Kermit
for execution on that system. This is only currently supported for
version 8.0 of RSTS/E, and will be supported for RSX11M-Plus in the
near future.
.rm 80
.lit
Kermit-11>REM HOST SHO DEV
Busy Devices:
Device Job Why
KB12 18 AS
PK0 29 Open
PK1 8 AS
PK2 5 AS+Open
SH0 2 Open
FE0 14 AS+Open
Disk Structure:
Dsk Open Size Free Clu Err Name Level Comments
DK1 0 4800 640 13% 4 0 BRIAN4 1.1 Pri, DLW, Lck
DB0 23 171796 33944 19% 4 0 SYSPAC 1.1 Pub, DLW
DB1 3 171796 15948 9% 4 0 WORK1 1.1 Pri
DB2 53 131648 7344 5% 4 0 SYSLIB 1.1 Pri, DLW
Kermit-11>
.eli
.rm 70
.i-1;2 RENAME
.s 1
The remote RENAME command is used to rename a file or set of files. RENAME
is used with two arguments in the format:
.lit
Kermit-11>REMOTE RENAME oldname newname
.eli
If the remote RENAME is used with one or no argument it will prompt for missing
arguments:
.lit
Kermit-11>REMOTE RENAME
From: oldname
To: newname
.eli
When the remote RENAME is finished the remote Kermit server will most
likely return either a list of files renamed or a count of the number of
files renamed. For a Kermit-11 server running remotely you would get
a count of the number of files renamed.
.lit
Kermit-11>REMOTE RENAME t.* junk
Remote ack: 3 files renamed
.eli
.s 1
.i-1;2 SPACE
.s 1
The REMOTE SPACE command sends a generic command to the remote Kermit
requesting information about the amounts of space available and space used on
the remote host. Command format is:
.lit
Kermit-11>REMOTE SPACE
or
Kermit-11>REMOTE
Kermit Remote cmd ?SPACE
.eli
.s 1
.i-1;2 TYPE
.s 1
The REMOTE TYPE command is just like the TYPE command but it tells
a remote Kermit server to get the file to be typed on your terminal and
send it over.
.lit
Kermit-11>REMOTE TYPE FUBAR.MAC
.eli
.s 1
.i-1;2 WHO
.s 1
The REMOTE WHO command instructs a remote Kermit server to send a listing
of who's logged into the system. This is currently only operational for
Kermit server running under RSTS/E. Please note that this command may be
restricted by the system manager.
.lit
Kermit-11>REMOTE WHO
.eli
.s 1
.i-1;1 RENAME
.s 1
The RENAME command is used to rename a local (only) file. RENAME
can be used with two arguments is the format:
.lit
Kermit-11>RENAME oldname newname
.eli
If RENAME is used with one or no argument it will prompt for missing
arguments:
.lit
Kermit-11>RENAME
From: oldname
To: newname
.eli
When RENAME is finished it will return a 'report' of what it has done:
.lit
Kermit-11>RENAME t.* junk
File DB0:[1,8]T.T1 renamed to DB0:[1,8]JUNK.T1
File DB0:[1,8]T.T renamed to DB0:[1,8]JUNK.T
.eli
.s 1
.i-1;1 RESTRICTIONS
.s 1
Prior to version 2.21, Kermit-11 did not support 8-bit prefixing.
.br
Prior to version 2.23, Kermit-11 did not support repeat character
encoding.
.br
The PRO/RT11 version of Kermit-11 will request 8-bit prefixing due to
the fact that the XC handler does not support 8BIT data. For most Kermits
this should not be a problem. The XC handler always strips bit 7 from
the character being sent, so the PRO/RT11 version of Kermit will
request prefixing of such. It does so internally by setting PARITY to
SPACE (always clear the high bit, bit seven).
.i-1;1 RSTS
.s 1
Kermit-11 runs on version 7.2 or later of RSTS/E. Due to options
present in version 8, binary file transfers will not be possible
under version 7.2 of RSTS/E. This is due to the use of 8 bit mode
for the terminal link to allow all characters to be passed.
The so called '8BIT' termianl setting was new as of version
8.0-06 of RSTS/E.
.s 1
Any RSTS/E system running Kermit-11 will need the sysgen option for
multiple private delimiters in the terminal driver. This special
mode is needed since the 'normal' RSTS/E binary terminal mode
has a 'feature' that disables binary mode whenever the terminal
times out on a read. Since timeouts are essential to Kermit
error recovery, binary mode can not be used for i/o.
.s 1
Certain functions of Kermit-11 require that the system manager
install Kermit with temporary priviledges, these commands are
the SYSTEM, WHO and REMOTE HOST commands. Kermit-11 does NOT
need these to operate correctly.
.s 1
Kermit-11 can only be built under RSTS/E version 8.0 or later
due to the use of RMS-11 V2.0 and new assembler directives.
.s 1
.i-1;1 RSX11M/M+
.s 1
Kermit-11 cannot be installed non-checkpointable due to an
apparent RMS-11 bug. In other words, don't try to install the
task '/CKP=NO'.
.s 1
To use the CONNECT command effectively, typeahead support is
needed in the terminal driver. For RSX11M+, set the typeahead
buffer size high, as in SET /TYPEAHEAD=TT22:200. Also, if your
CONNECT line is TT22: (as above), use the mcr command SET /SLAVE=TT22:
.s 1
Kermit-11 can only be built under RSX11M version 4.1 or later,
or under RSX11M-Plus version 2.1 or later
due to the use of RMS-11 v2.0 and new assembler directives.
.s 1
There is a SET RSX command, see HELP SET RSX for further information.
.s 1
As a side issue, please note that the file K11POS.TSK is quite
usable under RSX, the difference being that K11RSX.TSK has DECnet support
and RMS-11 overlayed in the task image (besides which, due to the lack
author's systems running RSX may not be up to date)
linked into it, whereas K11POS has NO DECnet support but IS linked to
the RMS-11 library RMSRES (V2), thus K11POS saves disk space as well as
supporting named directories, ala VMS style.
.s 1
.i-1;1 RT11
.s 1
#Kermit-11, as of version 2.20, has been tested under RT11
version 5.0 under the FB and XM monitors using a DZ11 line for
the link, and also on a PDT-150 using the modem port for the link.
It has additionally been run under Micro-11's and the PRO/350 using
the XL and XC handlers respectively.
.br
#As of Kermit-11 v2.39, RT11 users can use a SET LIN TT:, which will force
Kermit-11 to use the CONSOLE port for all I/O, with the restriction that
CONSOLE port I/O must request 8bit prefixing for the transfer of BINARY
data. Additionally, if the RT11 system lacks both MT service and the XL/XC
handler,
Kermit-11 will use the console by default.
.s 1
#Kermit-11 requires
_.TWAIT support as well as multiple terminal support. The use
of multiple terminal support allows Kermit-11 to use any type
of interface sysgened, including the DZ11 and DZV11. The exceptions
for MT support and/or XC/XL support are noted above regarding console only
usage.
.br
#It is possible under version 5 of RT11 to use the XL: handler
instead of the multiple terminal support. The use of the XL:
driver will result in much faster file transfer at high baud
rates. Note that XL: must be set up at system startup or at
some time later to set the proper speed, CSR and vector.
For PRO/RT11 information, see HELP PRO RT11.
.br
.s 1
#Please note that the device name syntax for terminal lines follows
the MT unit numbers, thus if a SHO TER gave unit 5 for DZ11 line 0
the the device name would be:
.lit
Kermit-11>SET LINE 5
If you must use the console port:
Kermit-11>SET LIN TT:
If you use the XL handler, you would do this:
Kermit-11>SET LINE XL:
.eli
Additionally, Kermit-11 for RT11 looks for its help file, K11HLP.HLP,
on DK: first and then on SY: if the first one fails.
.s 1
Full wildcarding is supported for RT11, in the form *.type, name.*,
*.* and the % character to match any single character.
.s 1
Kermit-11 can only be built on RT11 version 5.0 or later due
to the use of new assembler directives.
.br
Please note that for the CONNECT command under RT11 and the use of the
MT service,
you will most
likely need XON/XOFF flow control to be generated by Kermit-11. This
is enabled with the SET RTFLOW ON command. This is by default OFF since
the modem the author uses, a Vadic 212LS, can't handle XONs and XOFFs
while in command mode. The solution here is to escape back to Kermit
command mode after the remote system has been logged into, and then
type SET RTFLOW ON.
.s 1
Due to overlaying constraints, the RT11 Kermit-11 will not
accept wildcards for the RENAME and DELETE commands and the REMOTE
server equivalents.
.s 1
The executable files are K11XM.SAV for the XM system and PRO/350, and
K11RT4 for the FB system.
.s 1
For notes regarding hardware, see K11USR.DOC
.s 1
.i-1;1 SEND
.s 1
The SEND command will allow the user to send a file(s) to the other
Kermit. If Kermit-11 is running in remote mode the file will be sent
on the controlling terminal line after waiting the number of seconds
specified by the SET DELAY command. This gives the user time to escape
to the other Kermit and issue a receive command. If Kermit-11 is running
in local mode , the file will be sent immediately on the terminal line
specified by the SET LINE command. Format of the SEND command is:
.lit
Kermit-11>SEND file-specification
.eli
Where 'file-specification' can include device, PPN, or UIC, as well as
the file-spec. which may use wildcarding.
.s 1
.i-1;1 SERVER
.s 1
The SERVER command will put Kermit-11 into server mode. When Kermit-11
is in server mode while running as a remote Kermit (transmitting over
the controlling terminal line) the other Kermit can issue server
commands to send and receive files without having to give SEND or
RECEIVE commands to Kermit-11. In order to correctly receive binary
files while in server mode a SET FILETYPE BINARY must be done first.
At this time there is no way for Kermit-11 to determine whether an
incomming file is ASCII or binary. Command format is:
.lit
Kermit-11>SERVER
At this time, the Kermit-11 server can process the following
commands:
BYE Logout Kermit-11.
REMOTE COPY Copy a file to another.
REMOTE DIR Prints a directory out.
REMOTE DISK Prints the disk space.
REMOTE ERASE Delete the filename(s).
FINISH Exits Kermit-11 server.
GET Sends the filename(s).
REMOTE HELP Prints this help text.
REMOTE HOST Execute a host command.
REMOTE RENAME Rename old file to new.
REMOTE SPACE Prints the disk space.
REMOTE TYPE Prints the filename(s).
REMOTE WHO Shows users logged in.
.eli
.s 1
.i-1;1 SET
.s 1
The SET command is used to set various parameters in Kermit.
The format of the SET command is:
.lit
Kermit-11>SET parameter keyword
.eli
.s 1
.i-1;2 ATTRIBUTES
.s 1
Part of the Kermit protocol is the support of file attributes. Connected
Kermits that support this can send information to each other about file
size, time/date of creation, RMS file headers and other useful things.
Due to potential problems with incompatible implementations this feature
can be disabled. In this case, the sending Kermit-11 will never try to
send file attributes, even though the receiver may have indicated that it
supports this.
.lit
Kermit-11>SET ATTRIBUTES OFF
Kermit-11>SET ATTRIBUTES ON
Kermit-11>SET NOATTRIBUTES
.eli
.s 1
.i-1;2 BAUD
.s 1
This is the same as SET SPEED. See HELP SET SPEED
.s 1
.i-1;2 BINARY-TYPE
.s 1
Kermit-11 has a default list of filetypes that are scanned to decide if a file
should be sent in binary mode in addition to checking file attributes for RSX,
P/OS and RSTS/E. The user can, however, overide this list with the this command.
The default list is fairly inclusive, with types such as .SAV and .TSK forcing
Kermit-11 into binary transmission. See HELP SET FIL for the default list.
.lit
Kermit-11> SET BINARY-TYPE .SAV
Kermit-11> SET BIN .EXE
.eli
.s 1
.i-1;2 BLOCK-CHECK
.s 1
The SET BLOCK_CHECK command is used to determine the
block check sequence which will be used during transmission. The
block check sequence is used to detect transmission errors. There
are three types of block check available. These are the single
character checksum (default), the two character checksum, and the
three character CRC (cyclic redundancy check). This command does not
ensure that the desired type of block check will be used, since both
Kermit's involved in the transfer must agree on the block check type.
Kermit-11 will request that the type of block check set by this
command be used for a transfer. If the other Kermit has also had the
same block check type requested, then the desired block check type
will be used. Otherwise, the single character checksum will be used.
The command should be given to BOTH Kermits since Kermit-11, when in
server mode, has no say about what kind of checksum it wants to use.
(See Kermit protocol manual for more information.)
.lit
Kermit-11>SET BLOCK_CHECK keyword
Kermit-11>SET BLO 1
Kermit-11>SET BLO 2
Kermit-11>SET BLO 3
.eli
Where keyword is one of:
.lit
1_CHARACTER_CHECKSUM or ONE_CHARACTER_CHECKSUM
2_CHARACTER_CHECKSUM or TWO_CHARACTER_CHECKSUM
3_CHARACTER_CRC_CCITT or THREE_CHARACTER_CRC_CCITT
.eli
.s 1
.i-1;2 CONSOLE
.s 1
The SET CONSOLE command is used under P/OS to control the passing of
8 bit data to th terminal during the CONNECT command. If you are
getting multinational characters being printed, this is a very useful
thing to set. The default is SET CON 7.
.lit
Kermit-11>SET CON 8
Kermit-11>SET CON 7
.eli
.s 1
.i-1;2 DEBUG
.s 1
The SET DEBUG command is used to specify the type and level of debugging
to a disk file . This disk file must have been created by the SET LOGFILE
command. The format for SET DEBUG is:
.lit
Kermit-11>SET DEBUG qualifier
Kermit-11>SET NODEBUG
.eli
.s 1
.i-1;3 ALL
.s 1
SET DEBUG ALL will turn on logging for CONSOLE, CONNECT, FILE, PACKET
and STATE to the disk file specified by SET LOGFILE.
This command is the same as SET DEBUG ON. The command format is:
.lit
Kermit-11>SET DEBUG ALL
.eli
.s 1
.i-1;3 CONSOLE
.s 1
SET DEBUG CONSOLE will turn on logging for all I/O during a remote
CONNECT to the disk file specified by SET LOGFILE.
This command is the same as SET DEBUG CONNECT.
The command format is:
.lit
Kermit-11>SET DEBUG CONSOLE
.eli
.s 1
.i-1;3 CONNECT
.s 1
SET DEBUG CONNECT will turn on logging for all I/O during a remote
CONNECT to the disk file specified by SET LOGFILE.
This command is the same as SET DEBUG CONSOLE.
The command format is:
.lit
Kermit-11>SET DEBUG CONNECT
.eli
.s 1
.i-1;3 FILE
.s 1
SET DEBUG FILE will log all file 'opens' and 'creates' to the file specified
by SET LOGFILE. The command format is:
.lit
Kermit-11>SET DEBUG FILE
.eli
.s 1
.i-1;3 HELP
.s 1
SET DEBUG HELP gives the user a list of all qualifiers which can be
used with SET DEBUG. Command format is:
.lit
Kermit-11>SET DEBUG HELP
.eli
.s 1
.i-1;3 NONE
.s 1
SET DEBUG NONE turns off all debugging. This is the same as the
SET DEBUG OFF command. Command format is:
.lit
Kermit-11>SET DEBUG NONE
.eli
.s 1
.i-1;3 OFF
.s 1
SET DEBUG OFF turns off all debugging. This is the same as the
SET DEBUG NONE command. Command format is:
.lit
Kermit-11>SET DEBUG OFF
.eli
.s 1
.i-1;3 ON
.s 1
SET DEBUG ON will turn on logging for CONSOLE, CONNECT, FILE, PACKET
and STATE to the disk file specified by SET LOGFILE.
This command is the same as SET DEBUG ALL.
The command format is:
.lit
Kermit-11>SET DEBUG ON
.eli
.s 1
.i-1;3 PACKET
.s 1
SET DEBUG PACKET will turn on logging of all receive and transmit
packets to the disk file specified by SET LOGFILE.
The command format is:
.lit
Kermit-11>SET DEBUG PACKET
.eli
.s 1
.i-1;3 STATE
.s 1
SET DEBUG STATE will turn on logging of all internal Kermit-11 state
transitions
.s 1
.i-1;2 DELAY
.s 1
The DELAY parameter is the number of seconds to wait before sending
data after a SEND command is given. This is used when Kermit-11 is
running in remote mode to allow the user time to escape back to the
other Kermit and give a RECEIVE command.
.lit
Kermit-11>SET DELAY number-of-seconds
.eli
Where number of seconds is the (decimal) number of second to wait
before sending data.
.s 1
.i-1;2 DEFAULT
.s 1
The DEFAULT parameter allows you to specify a device and UIC (or PPN) for
all subsequent file opens (for SENDING) and file creates (for RECEIVING).
It is disabled by typing SET HOME.
.lit
Kermit-11>SET DEFAULT device
Kermit-11>SET DEFAULT DB2:[200,201]
.eli
This is quite useful for Kermit-11 running on a DECnet link, as you can
set the default for file operations to include node names and passwords
as in:
.lit
Kermit-11>set def orion::sys$system:[fubar]
.eli
.s 1
.i-1;2 DIAL
.s 1
The SET DIAL command is used to configure an undefined modem type to
enable the DIAL command to function. Since the discussion of SET DIAL
is quite involved, please consult the Kermit-11 User's Guide for further
information. The following commands are supported by Kermit-11 for the
SET DIAL command:
.lit
Kermit-11>SET DIAL WAKEUP string
Kermit-11>SET DIAL WAKE_STRING string
Kermit-11>SET DIAL PROMPT string
Kermit-11>SET DIAL INITIATE string
Kermit-11>SET DIAL FORMAT string
Kermit-11>SET DIAL SUCCESS string
Kermit-11>SET DIAL INFORMATION string
Kermit-11>SET DIAL FAILURE string
Kermit-11>SET DIAL CONFIRM string
Kermit-11>SET DIAL WAKE_RATE delay
Kermit-11>SET DIAL DIAL_RATE delay
Kermit-11>SET DIAL DIAL_PAUSE string
.eli
.s 1
.i-1;2 DUPLEX
.s 1
The DUPLEX parameter controls whether an outgoing link (set via the SET LINE
command) is a full duplex link (the default) or a half duplex link. All it
does for half duplex is to cause all characters typed after the CONNECT command
to be echoed locally.
.lit
Kermit-11>SET DUPLEX HALF
Kermit-11>SET DUPLEX FULL
.eli
.s 1
.i-1;2 END-OF-LINE
.s 1
The END-OF-LINE parameter sets the ASCII character which will be used as
a line terminator for all packets SENT to the other KERMIT. This is normally
not needed for most versions of KERMIT.
.lit
Kermit-11>SET END-OF-LINE octal-value-of-character
.eli
.s 1
.i-1;2 ESCAPE
.s 1
This command will set the escape character for the CONNECT
processing. The command will take the octal value of the character
to use as the escape character. This is the character which is used
to "escape" back to Kermit-11 after using the CONNECT command. It
defaults to control \ (octal 34). It is usually a good idea to set this
character to something which is not used (or at least not used very
much) on the system being to which Kermit-11 is CONNECTing.
.lit
Kermit-11>SET ESCAPE octal-character-value
.eli
Where octal-character-value is the ASCII value of the character to
use as the escape character (in octal).
.s 1
.i-1;2 FILE_TYPE
.s 1
This command will set the file type that Kermit is receiving. A file
type of ASCII should be used to receive text files which are to be
used as text files on the PDP-11 system. The file type BINARY should be
used for binary files, such as CP/M .COM files, which need to be kept
in a format that allows the file to be returned without any changes.
.lit
Kermit-11>SET FILE_TYPE type
Kermit-11>SET FIL BIN
.eli
.i -1;3 ASCII
.s 1
File type ASCII is for text files.
.s 1
.i-1;3 AUTO
.s 1
Kermit-11 will normally try to decide if a file must be sent in binary
mode based on the file attributes and filetype. If, for instance, the
directory entry for FUBAR.TXT showed it to be RMS (or FCS) fixed length
records, Kermit-11 will switch to binary mode and send it verbatim. If
the receiving Kermit is Kermit-11, then the sending Kermit will send
attribute data over also.
The following file types also will normally be sent as binary files unless
you use the SET FILE NOAUTO command.
.lit
*.TSK ; rsx, ias, and rsts tasks
*.SAV ; rt11 and rsts save images
*.OBJ ; compiler and mac output
*.STB ; tkband link symbol tables
*.CRF ; tkb and link cross reference files
*.TSD ; 'time shared dibol' for rt11
*.BAC ; rsts basic+ 'compiled' files
*.OLB ; rsx, ias, and rsts object libraries
*.MLB ; rsx, ias, and rsts macro libraries
*.RTS ; rsts/e run time systems
*.EXE ; vms executable
.eli
.i-1;3 BINARY
.s 1
File type BINARY is for non-text files. Note that binary files which
are generated on a PDP-11 system cannot be transferred to another
(non PDP-11)
system without losing file attributes. This means that (for
example), an RMS-11 indexed file cannot be transmitted with Kermit-11 at
this time. You can not have parity set to anything but NONE to use binary
file transfer (see HELP SET PARITY) unless the other Kermit can process
eight bit quoting.
Two Kermit-11's connected to each other will use binary transmission
automatically via the Kermit attribute packets, preserving file attributes
where it makes sense (ie, RSTS/E and RSX only).
.s 1
.i-1;3 FIXED
.s 1
SET FIL FIXED is the same as SET FIL BIN
.s 1
.i-1;3 NOAUTO
.s 1
SET FILE NOAUTO disables Kermit-11 from trying to base binary transmission
mode on file attributes or filetype.
.s 1
.i-1;3 PROTECT
.s 1
See HELP SET FILE SUPERCEDE for information.
.s 1
.i-1;3 SUPERCEDE
.s 1
SET FILE [NO]SUPERCEDE allows Kermit-11 to accept or reject files received
(from either the RECEIVE or GET commands) on a per file basis. The default
is SUPERCEDE. By doing SET FILE NOSUPERCEDE Kermit-11 will always check to
see if the file to be created is already there (independent of version number)
and reject it to the sending server if it exists. This presumes that the
Kermit sending the file understands the protocol to reject one file of a
(possibly) wildcarded group of files.
.br
The main use of this is to resume getting a group of files,
as in GET KER:K11*.* or GET KER:MS????.*
having lost the connection after transfering some of the files. If this is
set, then any files already transfered will not be transfered again.
.lit
Kermit-11>SET FILE SUPERCEDE
Kermit-11>SET FILE NOSUPERCEDE
.eli
.i-1;3 TEXT
.s 1
SET FIL TEXT is the same as SET FIL ASCII
.s 1
.i-1;3 TYPE
.s 1
The SET FILE TYPE xxx command is the same as the SET FILE xxx command. The
keyword TYPE is ignored for compatibility with other implementations of
Kermit.
.s 1
.i-1;2 HANGUP
.s 1
SET HANGUP is the same as the DISCONNECT command. It forces a connected
line (specified via the SET LINE command) to be dropped. This is currently
only supported for RSTS version 8.
.lit
Kermit-11>SET HANGUP
.eli
.s 1
.i-1;2 HOME
.s 1
SET HOME resets the default device and UIC (or PPN) to nothing, ie, all file
opens and creates use your default disk (SY:) and your UIC (or PPN).
.lit
Kermit-11>SET HOME
.eli
.s 1
.i-1;2 IBM-MODE
.s 1
.lit
The SET IBM ON (or OFF) will instruct Kermit-11 to wait for an XON
following each packet sent to an IBM host. Since the default for IBM
mode may not always be appropiate for your IBM compatible system, you
can always use the SET HANDSHAKE XON and SET DUPLEX HALF to avoid the
parity setting implied by using IBM mode.
.lit
Kermit-11>SET IBM ON
Kermit-11>SET IBM OFF
.eli
.s 1
.i-1;2 LINE
.s 1
The SET LINE command sets the terminal name up for use with the CONNECT
command. To use this you must have access to that device. On many systems
terminal lines other than your own are protected from access, and may require
special procedures to access them.
.br
The form of the device name is TTnnn:, where 'nnn' is a decimal number for
RSTS and an octal number for RSX11M/M+.
For RT11, the device name is simply the MT unit number shown by the SHO TER
command, as in '5' for DZ11 unit 0 line 4.
If you are running K11POS.TSK for P/OS on the PRO/350, Kermit-11 will set
the line to XK0: and the speed to 9600 baud when Kermit starts. To override
the line or speed, set HELP SET LINE and HELP SET SPEED.
.br
As of Kermit-11 v2.39, RT11 users can use a SET LIN TT:, which will force
Kermit-11 to use the CONSOLE port for all I/O, with the restriction that
CONSOLE port I/O must request 8bit prefixing for the transfer of BINARY
data. Additionally, if the RT11 system lacks both MT service and the XL/XC
Kermit-11 will use the console by default.
.lit
Kermit-11>SET LINE TT55: (for RSTS and RSX)
Kermit-11>SET LINE 5 (for RT11)
Kermit-11>SET LINE XK0: (for P/OS)
Kermit-11>SET LINE XL: (for RT11)
.eli
See HELP CONNECT, HELP SET DUPLEX and HELP SET SPEED for more information.
.s 1
.i-1;2 LOGFILE
.s 1
The SET LOGFILE command creates a debug dump file for you. It must be
used BEFORE any SET DEBUG commands can be used. See HELP DEBUG for further
information about debugging modes.
.lit
Kermit-11>SET LOGFILE MYLOG.TXT
Created debug file MYLOG.TXT
Kermit-11>
.eli
.s 1
.i-1;2 MODEM
.s 1
The SET MODEM command is used to establish the type of modem you are using
for the DIAL command. If the type of modem is not currently supported, the
DIAL command will not function. As of this writing, 27-Jan-85, the
Racal Vadic VA212PA, VA212PAR, generic VA3400 with autodialler option,
Digital DF112, MicroCom SX1200, Rixon R212A, PRO/TMS
and Hayes modems are supported.
The older VADIC 3212 and 34xx modems with autodialing options should also
function via SET MODEM VADIC. The following modems are defined. The DF200
and DF03 types have not been tested.
.lit
Kermit-11>SET MOD VA212PA
Kermit-11>SET MOD VA212PAR
Kermit-11>SET MOD VADIC
Kermit-11>SET MOD DF03
Kermit-11>SET MOD DF100
Kermit-11>SET MOD DF200
Kermit-11>SET MOD HAYES
Kermit-11>SET MOD MICROCOM
Kermit-11>SET MOD R212A
Kermit-11>SET MOD PROTMS
.eli
An implcit SET MOD PROTMS is done if the line is XTn: and the modem type
is undefined under P/OS on the PRO/350.
.s 1
.i-1;2 PACKET-LENGTH
.s 1
You can alter the default transmitted packet length with the SET PACKET-LENGTH
command. This should not normally be needed unless the line is very noisy, at
which time you should probably give up anyway.
.lit
Kermit-11>SET PACKET 60
.eli
.s 1
.i-1;2 PARITY
.s 1
This is used with the SET LINE and CONNECT commands to specify the type
of parity for the remote link. It defaults to NONE and can be either
ODD, EVEN, MARK or SPACE as in:
.lit
Kermit-11>SET PARITY NONE
Kermit-11>SET PARITY ODD
Kermit-11>SET PARITY EVEN
Kermit-11>SET PARITY MARK
Kermit-11>SET PARITY SPACE
.eli
All parity generation is done via software, no special hardware is used.
The use of software parity generation is restricted to 8 bit links only. The
character format, if parity is set to anything but NONE, will be 7 bits of
data followed with high bit set or cleared to indicate the parity. If you
set parity to anything but NONE (the default) you can NOT, at this time, send
binary files. Attempting to set parity if the FILETYPE is BINARY will result
in an error (SET FILETYPE qualifier).
.s 1
.i-1;2 PAUSE
.s 1
PAUSE tells Kermit to wait the specified number of seconds between each
packet being sent to the other Kermit. This may be useful under situations
of heavy system load. This may be automatically computer by Kermit-11 in
a future release as a function of line speed.
.lit
Kermit-11>SET PAUSE 1
.eli
.s 1
.i-1;2 PHONE
.s 1
Currently, the SET PHONE command supports the NUMBER option, as in:
.lit
Kermit-11>SET PHONE NUMBER WORK 5374411
.eli
This allows Kermit to associate a tag name with a phone number for the
DIAL command; in the above example:
.lit
Kermit-11>SET MOD VADIC
Kermit-11>DIAL WORK
.eli
This would cause Kermit-11 to translate WORK to 5374411 and dial it.
See the Kermit-11 User's Guide for further information.
.s 1
.i-1;2 PROMPT
.s 1
The SET PROMPT command is useful if you are using two Kermit-11's to
talk to each other. By using the SET PROMPT command, you can change the
prompt from 'Kermit-11>' on either (or both) Kermit to something that
would indicate which system you are currently connected to.
.lit
Kermit-11>SET PROMPT KERMIT-11/1170>
Kermit-11>SET PROMPT FUBAR>
Kermit-11>SET PROMPT PROKERMIIT-11>
.eli
.s 1
.i-1;2 RANDOM
.s 1
This command allows Kermit-11 to randomly generate checksum errors for
testing error recovery of an attatched Kermit. You would normally never
use this command. Another command that goes with it is called SET SEED value
which starts the pseudo-random number generator at a different point.
.lit
Kermit-11>SET RANDOM ON
Kermit-11>SET RANDOM OFF
.eli
.s 1
.i-1;2 RECEIVE
.s 1
Currently the SET RECEIVE and SET SEND basically work the same in that they
only alter the END-OF-LINE character and the START-OF-PACKET value, as in:
.lit
Kermit-11>SET REC START 2
Kermit-11>SET REC END 12
.eli
.i-1;3 END-OF-LINE
.s 1
This instructs Kermit-11 to expect something other than the default
carriage return (octal 15) at the end of a packet. Kermit-11 will ignore
packet terminators. The SET SEND END command is of more use in conditioning
outgoing packets.
.s 1
.i-1;3 START-OF-PACKET
.s 1
The normal Kermit packet prefix is Control-A (1); this command changes
the prefix Kermit-11 expects on incoming packets. The only reasons this
should ever be changed would be: Some piece of equipment somewhere between
the two Kermit programs will not pass through a Control-A; or,
some piece of of equipment similarly placed is echoing its input. In
the latter case, the recipient of such an echo can change the packet
prefix for outbound packets to be different from that of arriving packets
so that the echoed packets will be ignored. The opposite Kermit
must also be told to change the prefix for its inbound packets and the
prefix it uses on outgoing packets.
.lit
Kermit-11>SET REC START-OF-PACKET 2
.eli
.s 1
.i-1; 3 PACKET-LENGTH
.s 1
SET RECEIVE PACKET-LENGTH
.s 1
This command has two functions. The first, and normal one, is to reduce
incoming packet lengths in the event that normal sized Kermit packets can
not be passed through the communications circuit. There could be, perhaps,
some 'black box' somewhere in the link that has a very small buffer size;
this command could be used to reduce the size that the SENDING Kermit will
use.
.s 1
The other use is to enable a new protocol extension to Kermit called
'LONG PACKETS'. The actual protocol is documented elsewhere, let's just
say that this is a way for two Kermit's to use packet sizes far greater
than the normal ('Classic') packet size of 90 characters or so. The main
use of this feature is in file transfer over links that introduce considerable
delay, it is not uncommon for packets to incur an one to two second delay.
The net result is a VERY slow running Kermit with an effective speed of
perhaps 300 to 600 baud rather than 1200 or 2400 baud. By making the packets
longer, we raise the effective speed of such a circuit. The main restriction
on the packet size chosen is the link, a given circuit may not pass 500
character packets. Also, BOTH Kermits must support this extension to the
protocol, they will always negotiate it before any file transfer.
See the notes at the end of this document for more
information.
.lit
Kermit-11>SET REC PAC 50
Kermit-11>SET REC PAC 600
.eli
It is HIGHLY recommended that you use the CRC block check, as the default
type one checksum could be inadequate for such long packets, as in:
.lit
Kermit-11>SET BLO 3
.eli
.s 1
.i-1;2 POS (P/OS on the PRO/350)
.s 1
The currently available options on the SET command for the PRO/3x0 under
P/OS version 2 are:
.lit
Kermit-11>SET POS DTE
Kermit-11>SET POS NODTE
.eli
The DTE option tells Kermit-11 to attempt to spawn PRO/Communications (DTE)
as the CONNECT code; this allows the use of the 'grey keys' SETUP to set
terminal emulation characteristics, and the use of the 'EXIT' key to return
to the Kermit-11 command level. The 'SET POS DTE' command enables the attempt
to call PRO/COMM, whereas the 'SET POS NODTE' enables the builtin terminal
emulation.
.s 1
.i-1;2 RECORD-FORMAT
.s 1
Kermit will, by default, create RMS-11 variable length implied carriage control
records for text files. You can override this and change it to create stream
ascii records with the SET RECORD-FORMAT STREAM command. This is useful for
RSTS/E systems if you need file compatibility with BASIC-Plus.
.lit
Kermit-11>SET RECORD-FORMAT STREAM
Kermit-11>SET RECORD-FORMAT VARIABLE
.eli
This command would be most useful in a KERMIT.INI file, which is executed by
KERMIT when Kermit starts.
.s 1
.i-1;2 RETRY
.s 1
SET RETRY value tells Kermit to try that many times on a NAK'ed packet
before giving up. This should only be needed if the line is extremely
noisy or the PDP-11 host is running very slowly due to the system load.
.lit
Kermit-11>SET RETRY 10
.eli
.s 1
.i-1;2 RSX
.s 1
The SET RSX command is intended to deal with the peculiarities oft found
with RSX systems. There are currently three SET RSX commands, as in:
.lit
Kermit-11>SET RSX FASTIO Default for packet reading,
waits for <CR>.
Kermit-11>SET RSX CHARIO Read one char at a time for
packet reading.
Kermit-11>SET RSX TC.DLU n Alters the TC.DLU setting.
Kermit-11>SET RSX CONNECT ALT Uses a new (v2.33) CONNECT
driver which bypasses TTDRV
flow control.
Kermit-11>SET RSX CONNECT DEF Use old CONNECT code (2.32)
.eli
.s 1
.i-1;2 RT11
.s 1
.i-1;3 CREATE-SIZE
.s 1
The SET RT11 CREATE value command was added to assist those RT11 users
with very small disks to be able to get files with sizes greater that
half of the availble contiguous space availble. While this is NOT a
problem going from one Kermit-11 to another Kermit-11 since the PDP-11
Kermit supports a subset of the protocol known as 'ATTRIBUTES', other
Kermits may not support the exchange of file sizes (most do not). Thus
if your largest contiguous space is 300 blocks and you want to get a 250
block file, the command:
.lit
Kermit-11>SET RT11 CRE 250
.eli
would be needed, as RT11 by default only allocates 50 percent of the
available space.
.s 1
.i-1;3 FLOW-CONTROL
.s 1
Note that for the CONNECT command under RT11 you will most
likely need XON/XOFF flow control to be generated by Kermit-11. This
is enabled with the SET RT11 FLOW command. This is by default NOFLOW since
the modem the author uses, a Vadic 212LS, can't handle XONs and XOFFs
while in command mode. The solution here is to escape back to Kermit
command mode after the remote system has been logged into, and then
type SET RT11 FLOW.
.br
The effect of SET RT11 FLOW is for Kermit-11, when in CONNECT mode,
to send an XOFF to the host every eight characters. When the loop in
the CONNECT module finds no more data in the input buffer, it sends
up to 2 XON characters (in case the first XON got lost) to tell the
remote system to start sending again. The reason for doing so is that
the RT11 multiple terminal service is very slow about handling input
interupts and does not do any of it's own flow control when it's internal
ring buffer gets full. This has been tested at line speeds up to 4800
baud without losing data. This setting should not be needed for use with
the XC/XL handlers.
.br
SET RT11 FLOW has NO effect on packet transmission, since the Kermit packet
size is never mode than 96 characters, and the RT11 input buffer is 134
chararcters in size.
.lit
Kermit-11>SET RT11 FLOW
Kermit-11>SET RT11 NOFLOW
.eli
.s 1
.i-1;3 VOLUME-VERIFY
.s 1
Normally RT11 Kermit-11 will check the directory header of a disk to verify
that it most likely contains a valid RT11 file structure before trying to read
the directory. If for some reason your disk does not contain the standard data
at offset 760 in the header, Kermit-11 will reject the disk. The SET RT11 NOVOL
command will instruct Kermit-11 to bypass that check.
.lit
Kermit-11>SET RT11 VOL
Kermit-11>SET RT11 NOVOL
.eli
.s 1
.i-1;2 SEND
.s 1
The SET SEND command controls what Kermit-11 will be doing for outgoing packets
in that you may want to alter the packet terminator and/or the start of packet
character (by default, 15 octal and 1 octal respectively. See HELP SET RECEIVE
for more information.
.s 1
.i-1;2 SPEED
.s 1
SET SPEED value sets the line speed for the device specified via the
SET LINE command, and used for the CONNECT command. Changing the speed
of a terminal line requires privilege for RSTS and RSX11M/M+.
The SET SPEED command will only function with a DH11, DHV11, DZ11 or DZV11
multiline interface.
.lit
Kermit-11>SET SPEED 1200
.eli
1200 Baud would be a normal speed to use with a VA212LS or a DF03.
.s 1
Please note that Kermit-11 CANNOT change the speed of a DL11 type interface,
nor can it change the speed of a PDT-150 modem port.
For a PDT-150 modem port, use a command of /M/S:nnnn. to change the speed to
nnnn for the SPEED.SAV program.
.s 1
.i-1;2 START-OF-PACKET
.s 1
The SET START octal-value tells Kermit-11 to expect and also to send as
the start of packet character the specified character instead of the
default Control-A (octal 1). Note that both Kermit's must support this
command (or SET RECEIVE/SEND START value) as it is not possible for
two Kermit's to negociate this. This set command is the same as doing
both a SET REC START n and SET SEND START n.
.lit
Kermit-11>SET START 2
Kermit-11>SET START 1
.eli
.s 1
.i-1;2 TIMEOUT
.s 1
The timeout value tells Kermit how long to wait to get a packet from
the other Kermit. If system loads are high, it may be desirable to increase
this beyond the default of 10 seconds.
.s 1
.i-1;2 TERMINAL
.s 1
The SET TERMINAL command simply controls the way which Kermit-11 prints
packet counts while send or receiving a file (or group of files). The
simplest way is the default, SET TER TTY. Using SET TER VT100 will cause
Kermit to display headers for the numbers printed, at a possible cost
in packet speed due to screen control overhead.
.lit
Kermit-11>SET TER TTY
Kermit-11>SET TER VT100
.eli
.s 1
.i-1;2 UPDATE
.s 1
The SET UPDATE command controls the frequency at which the packet count display
is updated. The default is 1, displaying each packet. A SET UPD 0 will disable
all packet count logs, whereas a SET UPD N will update the display every N
packets. The SET NOUPDATE command is the same as SET UPDATE 0.
.s 1
.i-1;1 SHOW
.s 1
The SHOW command will display the settings made by the SET command and allow
you to look at session statistics.
.lit
Kermit-11>SHOW parameter
.eli
.i-1;2 ALL
.lit
Displays everything: BLOCK-CHECK DEBUG DEFAULT ESCAPE
FILE-TYPE LINE PACKET PARAM
TIME VERSION
.eli
.i-1;2 BLOCK-CHECK-TYPE
.s 1
Displays the current type of checksum set.
.s 1
.i-1;2 DEBUG
.s 1
Shows the status of debugging.
.s 1
.i-1;2 DEFAULT
.s 1
Shows the device and UIC (or PPN) used for file operations.
.s 1
.i-1;2 ESCAPE
.s 1
Shows the escape character used to return to a local Kermit-11
.s 1
.i-1;2 FILE-TYPE
.s 1
Shows the current filetype (BINARY or ASCII)
.s 1
.i-1;2 LINE
.s 1
Displays parameters associated with the current CONNECT line.
.s 1
.i-1;2 PACKET
.s 1
Prints out packets statistics from the last transaction and total so far.
.s 1
.i-1;2 PARAMETERS
.s 1
Prints out various send parameters
.i-1;2 RECORD-FORMAT
.s 1
Shows what kind of file will be created by Kermit.
.s 1
.i-1;2 TIME
.s 1
The time of day
.s 1
.i-1;2 VERSION
.s 1
My current version and edit.
.s 1
.i-1;1 STARTUP
.s 1
You can place a file called KERMIT.INI in your account and have Kermit-11
automatically read commands from it before getting commands from your terminal.
.s 1
.i-1;1 SYSTEM
.s 1
The SYSTEM command takes a CCL/MCR/DCL command line and spawns a task to
execute it. This is done via the SPWN$S directive for RSX and by spawning
a job on a pseudo-keyboard for RSTS. If the command fails for RSTS then Kermits
protection code was set to run without privileges.
.lit
Kermit-11>SYS PIP DB1:=FUBAR.DAT
Kermit-11>SYS
Command: SUB MYJOB
Kermit-11>
.eli
.s 1
.i-1;1 TAKE
.s 1
The Take command is just like the @ command. It opens a disk file for reading
commands from, as in TAKE filename.
.lit
Kermit-11>TAKE MYKERM.CMD
.eli
.s 1
.i-1;1 TSX+
.s 1
Kermit-11 for TSX+ is exactly the same Kermit used under RT11/XM. Kermit-11
for RT11 always checks for the type of system it is on, be that RT11, PRO/RT11
or TSX+. At run time, it will dispatch to the correct overlay for doing
terminal I/O (or XL/XC I/O). Note that for TSX+, you can only dial out by
using the XL handler, supplied with version 5. As far as system requirements
go the author has been told that the sysgen parameter DINSPC in TSGEN.MAC
mu st at least 100 (10) in value, otherwise the terminal driver will be unable
to buffer the entire received Kermit packet. Since the author does not have
or use TSX+, any problems that arise on TSX+ will have to be fixed by the
site's systems personel and reported back to the author.
.br
To use the CL: handler under TSX+, the following commands are needed. Please
note that 'n' stands for a value, be it a unit number or a speed value. In
all cases, the commands are KMON commands unless shown with a Kermit-11>
prefix.
.lit
.SET CL LINE=n
.SET CL NOLFOUT
.SET CL SPEED=nnnn
.ASS CLn XL
.run kermit
Kermit-11>SET LIN XL
.eli
See HELP RT11 for more information that would also pertain to TSX+.
.s 1
.i-1;1 TYPE
.s 1
The TYPE command prints a file to your terminal, as in:
.lit
Kermit-11>TYPE KERMIT.INI
.eli
.s 1
.i-1;1 USAGE
.s 1
Kermit-11 is normally run on the PDP-11 host system as a server. This means
that a remote Kermit can send it commands without the user having to be switching
between the local Kermit (usually a micro) and the remote Kermit (the one on
the PDP-11). While Kermit-11 supports most of the server commands shown in
version Four revision 1 of the protocol manual (see HELP REMOTE), not all
micro based Kermits are able to send these commands to Kermit-11. Most
Kermits do support the GET, SEND, BYE and FINISH server commands, which
are sufficient for most file transfers. The following is an example of the
dialog when a DEC VT180 Robin connects to a PDP-11/70 RSTS system to use
Kermit.
.rm 80
.lit
A>b:
B>a:cpmrob
Kermit-80 V3.6 [VT180 "Robin"]
Kermit-80 B:>connect
[Connected to remote host, type Control-\C to return]
LOG
RSTS V8.0-07 U of Toledo 70 Job 12 KB25 17-Feb-84 03:31 PM
User # 2/2
Password:
Welcome to RSTS/E version 8.0
$ kermit
Kermit-11>server
Kermit Server running on PDP-11 host. Please type your escape sequence
to return to your local machine. Shut down the server by typing the
Kermit BYE command on your local machine.
(the user now types Ctrl \C)
Kermit-80 B:>get *.odl
.
. All files on the 11/70 with types of ODL are sent
.
Kermit-80 B:>bye
B>
.eli
See HELP SEND, HELP GET and HELP BYE for additional information.
.rm 70
.s 1
.i-1;1 WHO
.s 1
The WHO command (currently for RSTS/E only) prints a brief SYSTAT out.
.s 1