Date: Tue, 04 Aug 1998 10:51:08 +0200 From: Juergen Nickelsen <ni@tellique.de> To: Studded <Studded@dal.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: BASH prompt question Message-ID: <35C6CB7C.729CC0A@tellique.de> References: <Pine.LNX.3.96.980803142023.11763B-100000@www.schell.de> <35C657D9.4B2577D4@dal.net>
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Studded wrote:
> Why call a shell function every time you hit return?
While I don't do that, I call even a program every time I cd.
cd () { builtin cd "$@" ; setprompt ; }
setprompt () { PS1=": ${HOST}:`echo $PWD |
sed -e 's|.*[^/]\(/[^/]*/[^/]*\)|...\1|'`; " ; } ;;
This gives me the following prompt:
: dix:/home/ni;
: dix:/home/ni; cd src/mnsim
: dix:.../src/mnsim;
: dix:.../src/mnsim; cd /usr/local/bin
: dix:.../local/bin;
: dix:.../local/bin; cd /
: dix:/; cd bin
: dix:/bin;
(a) I have the PWD in the path, but no more than two components of it.
(b) I can cut and paste the complete line if I want to repeat a command,
because the prompt itself is just an empty shell command (":").
If anyone knows how I can accoplish (a) without calling sed (or awk, or
perl, ... :-), I'd appreciate a hint.
Greetings, Juergen.
--
Juergen Nickelsen <ni@tellique.de>
Tellique Kommunikationstechnik GmbH
Gustav-Meyer-Allee 25, 13355 Berlin, Germany
Tel. +49 30 46307-552 / Fax +49 30 46307-579
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