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4DOS301.LZH
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ALIASES
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1990-05-22
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:
: ALIASES -- 4DOS Sample Alias File
:
:
: The aliases in this file are designed to give you some examples of
: how 4DOS aliases can be used and the power they have. It is not
: intended to be an exhaustive list, and many of these may not be
: appropriate for your needs. But they should give you a feel for how
: to use aliases to help get your work done.
:
: CAUTION: These aliases are EXAMPLES. We do NOT promise that they
: will work properly when run on your system. They are simply intended
: to show what's possible and give you a feel for how to write your
: own set of aliases. You may find some of them useful, but others
: may fail or have unintended effects when they are run on a system
: other than the one they were designed for.
:
: This file is designed to be loaded with an ALIAS /R command, for
: example:
:
: alias /r aliases
:
: You can also load aliases from a batch file, but ALIAS /R is much
: faster. See the manual for more details on loading aliases.
:
: We suggest you put your standard aliases are in a self-contained
: file like this one which can be invoked from AUTOEXEC. That
: way the file can also be re-invoked after it is edited, to re-
: install the aliases.
:
:
:
: The next few aliases set up some directory commands that provide
: shorthand ways to view the directory in several different formats
: (see the DIR command in the manual for more details).
:
: Note that none of these aliases has any arguments specified (%1,
: %2, etc.). This means that all arguments on the actual command line
: will be appended to the alias text. For example:
:
: d2 x*
:
: is equivalent to:
:
: dir /2pv x*
:
: and:
:
: d2 x* y* z*
:
: is equivalent to:
:
: dir /2pv x* y* z*
:
d2 dir /2pv
de dir /oe
dir *dir /p
wh*ereis dir /dp
:
: The last two commands above demonstrate the use of an asterisk to
: terminate alias expansion and to shorten the name of an alias.
:
: In the first case, if the command were defined as:
:
: alias dir dir/p
:
: it would generate an alias loop error. The inclusion of the "*"
: makes 4DOS terminate alias expansion for that command, which
: allows the redefinition of a command with specific switch settings.
: In this case "dir" is redefined as "dir/p", which will cause
: directories to be displayed with a pause at the end of each page.
:
: The "whereis" command demonstrates truncation of an alias name.
: The * is placed after the last required character in the name, so
: the "whereis" command can be entered as "wh", "whe", "wher",
: "where", "wherei", or "whereis".
:
:
: The following aliases are more shorthand: DD and DU (directory
: down and directory up) for pushd and popd, L for list, etc.
:
dd pushd
du popd
l list
clr mode mono
:
:
: Here's what the next few aliases do:
:
: more: Uses 4DOS's LIST /S as a substitute for the DOS MORE
: command. Note the use of the * to allow the command
: to be entered as MO, MOR, or MORE
: sdel: Allows you to select files for deletion from a subset
: of files as specified in the command argument. For
: example:
:
: sdel *.obj
:
: will allow you to select files to delete from a list
: of all .obj files. (See the SELECT command in the
: manual for more details).
:
: up: Moves "up" in the directory tree, i.e. to the parent
: directory.
:
: ov: Moves "over" in the directory tree, to another subdi-
: rectory which has the same parent as the current
: directory.
:
mo*re list /s
sdel select del (%1)
up cd ..
ov cd ..\%1
:
: The next two aliases show how arguments can be passed to commands.
: In both cases the argument given when the alias is invoked is passed
: to the program at the appropriate place in its command string.
:
:
lp lpr -u %1 >lpt1
ps d:\peri\ps /t:%1 /e:4
:
: The next few aliases demonstrate several things. Some use the
: command separator character ^ to include multiple commands in
: the alias. The last two (PC and BACK) use the alias called IN
: to do their job. In fact IN was designed for "internal" use by
: other aliases in this file, though it could be used elsewhere as
: well. Note that, while PX is set up before it is referenced in
: other aliases, this is not really necessary, because any command
: in one alias which refers to another is handled when the alias is
: invoked, not when it is set up with the alias command.
:
: Here's what each alias does:
:
: nd: Creates a new directory below the current directory,
: then changes to it.
:
: w: Saves the current directory, changes to the wp
: directory on drive c:, runs the wp program using
: the first argument on the command line, and
: restores the original directory when done.
:
: zap: Deletes all the .bak files in the current directory,
: then does a wide directory listing.
:
: in: "Pushes" a different directory, executes a command,
: including all of the arguments on the command line,
: and then goes back to the original directory. See
: PUSHD, POPD, and Alias Parameters in the manual for
: more details.
:
: pc: Changes to the \comm directory on drive c:, runs
: the program called pcomm, then returns to the
: drive and directory in use when the command was
: executed.
:
: back: Changes to the \backup directory on drive d:, runs
: the program called tape, then returns to the previous
: drive and directory.
:
nd md %1^cd %1
w pushd c:\wp^wp %1^popd
zap del *.bak^dir /w
in pushd %1^%2&^popd
pc in c:\comm pcomm
back in d:\backup tape
:
: The following aliases make use of the %& argument. This argument
: means "all of the arguments on the command line". For example:
:
: zap2 *.bak *.lst *.bk!
:
: expands to:
:
: erase *.bak *.lst *.bk!^chkdsk^dir /w
:
: The last of the three aliases below uses the %@eval function to
: create a command-line calculator, by simply passing all arguments
: on the command line to the function.
:
zap2 erase %&^chkdsk^dir /w
ed edit %&^del *.bak
cal*c echo The answer is: %@eval[%&]
:
: The following two aliases, taken from page 39 of the manual, show
: how to combine alias with keystack to invoke a program and pass
: parameters to it. See the manual for details on what they do.
: Note that the 0s in the keystack strings simulate an empty keyboard
: buffer; the 13s are carriage returns.
:
321 keystack 0 13 0 13 0 13 0 13 0 13 "/fr" 0 "%1" 13^123
drpt pushd c:\data^keystack "use times index times" 13 "report form timerep to print" 13 "quit" 13^dbase^popd
:
:
: The following aliases show the use of IFF in aliases. The first
: redefines SET so that it displays the environment variables with a
: /P if no parameters are given, or processes the SET if parameters
: are specified. The second checks whether the argument is a directory;
: if so it deletes the files in the directory and then removes the
: directory. If not, it gives an error message.
:
set iff "%1"=="" then *set /p ^ else *set %& ^ endiff
zap iff isdir %1 then ^ *del %1 ^ *rd %1 ^ else ^ beep ^ echo Not a directory! ^ endiff