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1993-03-08
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FYI
(Note: The origin of this information may be internal or external
to Novell. Novell makes every effort within its means to verify
this information. However, the information provided in this
document is FOR YOUR INFORMATION only. Novell makes no explicit
or implied claims to the validity of this information.)
TITLE: SAMPLES OF DR DOS ENHANCEMENTS IN CONFIG AND
BATCH PROCESSING
DOCUMENT ID#: FYI-M-1105
DATE: 03MAR93
PRODUCT: DR DOS
PRODUCT VERSION: 6.0
SUPERSEDES: FYI-M-1113
SYMPTOM: SAMPLES OF POSSIBLE DR DOS CONFIGURATION FILES
ISSUE/PROBLEM: DR DOS has greatly enhanced CONFIG and BATCH
commands. This document provides examples of how these various
commands can be used.
Solution: Only the basic ideas are outlined in each
example. The rest of the file can be filled in with your own
ideas.
EXAMPLE 1 - The use of GOTO in the CONFIG file.
?"Do you want to run QEMM (y/n)? " goto QEMM
?"Do you want to run MemoryMAX (y/n)? " goto DRDOS
:QEMM
DEVICE=c:\QTR_DECK\QEMM386.SYS
DEVICE=C:\DRDOS\HIDOS.SYS /B=FFFF
(additional QEMM driver lines go here...)
goto COMMON
:DRDOS
hidos=on
DEVICE=C:\DRDOS\EMM386.SYS /F=AUTO...
...
:COMMON
files=40
hibuffers=20
...
The GOTO statement is used to proceed directly to a label. This
function works like the GOTO statement found in batch file
processing.
EXAMPLE 2 - The use of CHAIN in the CONFIG file.
This example shows that you can link to other files that hold
your configurations for each system setup. In the following
CONFIG.SYS file, the two lines direct the configuration process
to the files: QCONFIG and MCONFIG.SYS. The appropriate FILES,
BUFFERS, etc. information is contained within those files and not
within the main CONFIG.SYS file. If the response to both
questions is no, a default configuration begins. The RETURN
command cannot be used to return to the parent CONFIG file.
?"Do you want to run QEMM (y/n)? " chain=QCONFIG.SYS
?"Do you want to run MemoryMAX (y/n)? " chain=MCONFIG.SYS
files=40
hibuffers=20
...
EXAMPLE 3 - Using SWITCH/RETURN and labels.
Processing pauses on the SWITCH command until an option is
chosen. The appropriate option is selected by choosing a number.
The SWITCH command then goes to the corresponding label. In the
example below 1 selects the label :NOLIM, 2 selects the label
:512K and so forth. The RETURN command will return processing to
the line after SWITCH. Notice the use of the ECHO statement for
setting up the menu options.
ECHO = Choose how much Extended Memory you want to convert
ECHO = to LIM Memory for this session.
ECHO =
ECHO = 1 (or ENTER) No LIM Memory
ECHO = 2 512K of Memory
ECHO = 3 1024K of Memory
ECHO = 4 2048K of Memory
ECHO =
ECHO = Make your selection...
SWITCH NOLIM, 512K, 1024K, 2048K
GOTO DEFAULTS
:NOLIM
DEVICE=C:\DRDOS\EMM386.SYS /F=NONE /K=AUTO /B=FFFF /R=AUTO RETURN
:512K
DEVICE=C:\DRDOS\EMM386.SYS /F=AUTO /K=512 /B=FFFF /R=AUTO
RETURN
:1024K
DEVICE=C:\DRDOS\EMM386.SYS /F=AUTO /K=1024 /B=FFFF /R=AUTO RETURN
:2048K
DEVICE=C:\DRDOS\EMM386.SYS /F=AUTO /K=2048 /B=FFFF /R=AUTO RETURN
:DEFAULTS
SHELL=C:\COMMAND.COM \C: /P /E:512
HIDOS=ON
HIBUFFERS=20
FILES=30
etc...
EXAMPLE 4 - How to use environment variables in the CONFIG
The use of variables in the CONFIG is not quite the same as in
batch files. Because the command processor (COMMAND.COM) is not
loaded until after CONFIG processing, environment variables are
only stored. These variables are then passed to the command
processor where they can be tested and processed through the
AUTOEXEC.BAT or other batch files. It is not possible to test an
environment variable in the CONFIG. The CLS, CPOS, EXIT and SET
commands are featured in this example.
:DEFAULTS
SHELL=C:\COMMAND.COM \C: /P /E:512
HIDOS=ON
HIBUFFERS=20
FILES=30
etc....
ECHO = Choose which TSRs and Utilities you want loaded
ECHO = at BOOT time for this session.
ECHO =
ECHO = 1 (or ENTER) None... just continue
ECHO = 2 Mouse & Cursor Drivers
ECHO = 3 Keyboard "Speeder"
ECHO = 4 Novell Network
ECHO = 5 Done with selections
ECHO =
ECHO = Make your selection...
:MORE
CPOS 10,33
SWITCH NOTHING, CURSMOUS, SPEEDKEY, NOVELL, DONE
GOTO MORE
:DONE
:NOTHING
CLS
EXIT
:CURSMOUS
SET THINGS=ON
RETURN
:SPEEDKEY
SET SPEEDKEY=ON
RETURN
:NOVELL
SET NETWORK=ON
RETURN
The AUTOEXEC.BAT shown below picks up the environment variables.
The AUTOEXEC.BAT file now allows testing of the environment
variables and executes commands based upon the conditionals
illustrated below:
@ECHO OFF
:drdosbeg
VERIFY OFF
PATH C:\;C:\DRDOS;C:\BATS;C:\TOOLS;C:\WINDOWS
if "%things%"=="on" prompt $e[s$e[0;70H$e[1;36m$t$e[u$e[1;36mDR
DOS6$p$g$e[2;32m
if not "%things%"=="on" PROMPT [DR DOS] $P$G
SET TEMP=C:\TEMP
IF NOT "%TEMP%"=="" MD %TEMP% >NUL
if "%things%"=="on" HILOAD MOUSE
if "%things%"=="on" HILOAD CURSOR /s10
if "%speedkey%"=="on" c:\drdos\mode con:rate=30 delay=1
if "%network%"=="on" hiload c:\lan\ipx
if "%network%"=="on" hiload c:\lan\net3
:drdosend
OTHER EXAMPLES
1) Selecting different configuration options from the CONFIG.SYS
file using the ? key.
?SHELL=C:\COMMAND.COM C:\ /P /E:512
?SHELL=C:\COMMAND.COM C:\ /P /E:1024
?BREAK=OFF
?BREAK=ON
BUFFERS=20
FILES=20
?HISTORY=ON, 256, ON, OFF, OFF
?DEVICE=C:\DRDOS\ANSI.SYS
2) Selecting different AUTOEXEC.BAT's from CONFIG.SYS using the ?
and the Shell statement.
In the Shell statement the /P switch can be followed by a
filename. When present, the named file will be executed instead
of the AUTOEXEC.BAT. The named file must have a .BAT extension
and cannot exceed 11 characters including path.
?"Default Autoexec? (y/n) "SHELL=C:\COMMAND.COM C:\ /P /E:256
?"Alternate Autoexec? (y/n) "SHELL=C:\COMMAND.COM C:\
/P:ALTERNAT.BAT /E:256
3) Selecting and using different configuration files from
CONFIG.SYS at bootup.
?"Do you want to run Windows? (y/n) " chain = WCONFIG.SYS
?"Do you want to use QEMM? (y/n) " chain = QCONFIG.SYS
?"Do you want to use MemoryMAX? (y/n) " chain = MCONFIG.SYS
?"Do you want to use 386MAX? (y/n) " chain = 386CONF.SYS
Each line is printed on the screen and you are asked to load/run
the chained configuration file. Each configuration file is a
complete CONFIG.SYS type file with all of the appropriate
options.
4) The above configuration using "menu" choices with SWITCH.
Note how the "SET environment" variables can be used and tested
for different AUTOEXEC type files in this example.
CONFIG.SYS
ECHO = 1 For Windows Configuration
ECHO = 2 For QEMM Configuration
ECHO = 3 For DR DOS MemoryMAX Configuration
ECHO = 4 For 386MAX Configuration
ECHO = 5 For no Configuration... just exit
SWITCH win, qemm, memm, 386m, none
:none
set autoexec=norm
exit
:win
set autoexec=win
chain=wconfig.sys
:qemm
set autoexec=qemm
chain=qconfig.sys
:memm
set autoexec=memm
chain=mconfig.sys
:386m
set autoexec=386m
chain=386conf.sys
AUTOEXEC.BAT
@echo off
PATH C:\DRDOS;C:\;C:\UTIL;
VERIFY OFF
PROMPT $P$G
DISKMAP C: D:
IF "%autoexec%"=="norm" goto DRDOSEXIT
SHARE /L:40
IF "%autoexec%"=="win" SUPERPCK /EM /L:2048
IF "%autoexec%"=="qemm" CALL QEMM.BAT
IF "%autoexec%"=="memm" SUPERPCK /A /L:2048
IF "%autoexec%"=="386m" CALL 386.BAT
:DRDOSEXIT
5) Using ANSI
ANSI escape sequences can be used in batch file processing to
create colorful menus. Below is an example of a menu that uses
the SWITCH command and ANSI escape sequences to create a menu.
ANSI.SYS must be loaded in the CONFIG.SYS to allow for cursor
positioning and colors. The first character after the Echo
statement is an ASCII 27 or escape character. This character may
be displayed differently on some printers and monitors (in fact
if you have ANSI loaded you will never see the character when
typed to the screen). To type this character using the DR DOS
Editor type CTRL-P then the ESC key. An alternate method is to
type CTRL_Q N and then type the number 27. Within Editor the ESC
character will appear as: ^[ . If you have downloaded this
document from CompuServe or the Novell Host System the escape
sequences have been left intact and you can use the DR DOS Editor
to block out the Echo statements to a file. Then, if ANSI is
loaded when the file is typed to the screen you should see white
letters on a magenta background.
For additional information on ANSI.SYS and escape sequences refer
to page 399 of the DR DOS Users Guide.
@ECHO OFF
ECHO
┌─────────────────────────────────┐
ECHO
│ 1. CONTINUE W/O SCAN │█
ECHO
│ 2. SCAN FOR VIRUSES │█
ECHO
└─────────────────────────────────┘█
ECHO
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
SWITCH MENUBEGIN,SCAN