Path: utzoo!attcan!uunet!mcsun!sunic!his!jonas
From: jonas@his.UUCP (Jonas Mellin)
Newsgroups: comp.unix.questions
Subject: Re: Macro facility in csh?
Message-ID: <290@his.UUCP>
Date: 4 Sep 89 06:09:54 GMT
References: <8998@zodiac.ADS.COM>
Reply-To: jonas@his.UUCP (Jonas Mellin)
Organization: Hogskolan i Skovde, Skovde, Sweden
Lines: 53

In article <8998@zodiac.ADS.COM> charleen@ADS.COM () writes:
>I may be asking for too much, but I write a lot of csh scripts and
>it sure would be handy to have macro capability.  I don't find any
>mention of it in the documentation, though.
>
>Responses on the order of "Well, shoot, if you want that much
>flexibility you should be using ______" welcome as well.
>
>Charleen

It is possible to use aliases for the purpose.

alias cd 'set old=$cwd; chdir \!*; pwd'
alias back 'set back=$old; cd $back; unset back'

Here is an example using it:
...> cd /tmp
/tmp
...> back
(whereever you were before)
...>

or

set pdl=
alias pd 'chdir \!:1;set pdl=($pdl $cwd); pwd'
alias ccd 'echo $pdl; echo -n index: ; set pdi=$<; chdir $pdl[$pdi]; pwd'
alias cdn 'chdir $pdl[\!:1]; pwd'
alias ud 'echo $pdl; echo -n index:; set pdi=$<; @ pdii=$pdi + 1;'\
         '@ pdi=$pdi - 1; set pdl=($pdl[-$pdi] $pdl[$pdii-]);'\
	 'echo $pdl; unset pdi pdii'
alias pdreset set pdl=

where

pd	registers a directory in the pdl
ccd	displays pdl first and prompts the user for an index. If an
	correct index is used it changes to the directory
cdn	change to the nth directory in the indexlist.
ud	removes a directory from pdl
pdreset	resets pdl to an empty list

Both of these examples are from the book 'An Introduction To Berkeley UNIX'.

I am more inclined to use Bourne Shell for shellscript programming.
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