Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!lll-tis!ames!hao!gatech!bloom-beacon!bu-cs!bucsb!eap
From: eap@bucsb.UUCP (Eric Pearce)
Newsgroups: comp.unix.wizards
Subject: Re: How to have PS1 evaluated after each "cd"
Message-ID: <1374@bucsb.UUCP>
Date: 31 Dec 87 18:30:52 GMT
References: <574@ambush.UUCP> <1876@netsys.UUCP>
Reply-To: eap@bucsb.UUCP (Eric Pearce)
Organization: BD&HR (Beer Drinkers & Hell Raisers)
Lines: 31

In article <1876@netsys.UUCP> lee@netsys.UUCP (Lee Chen,Staff) writes:
>
>  Not So Long Ago there was a discussion about how to have the present
>working directory evaluated and displayed as part of the PS1 prompt.
>Would anyone (or two :-) care to summarize on effective solutions to
>this "problem" via ksh, csh, sh, *sh script or C ?

I've been using this for quite a while under csh/tcsh (I did not write
it myself)

# the following will set the prompt for the user to be the last element
# of the current directory path.  To remove this remove the ":t" from the
# setprompt alias, the cd, pushd, popd aliases work to maintain the correct
# directory printed on the screen
alias setprompt 'set prompt="$cwd:t ";\\
		if (x$cwd == x"/")set prompt="[/] ";'
alias cd 'if ("\!:0-$" == cd) cd;\\
		if ("\!:0-$" != cd) cd \!$;\\
		setprompt'
alias pushd 'if ("\!:0-$" == pushd) pushd;\\
		if ("\!:0-$" != pushd) pushd \!$;\\
		setprompt'
alias popd 'if ("\!:0-$" == popd) popd;\\
		if ("\!:0-$" != popd) popd \!$;\\
		setprompt'
setprompt;



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