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From: Dan Kenigsberg <danken@cs.Technion.AC.IL>
Message-Id: <200204161203.PAA16978@csd.cs.technion.ac.il>
Subject: Re: listing all executables by prefix - solution!
To: guckes@math.fu-berlin.de (Sven Guckes)
Date: Tue, 16 Apr 2002 15:03:04 +0300 (IDT)
Cc: zsh-users@sunsite.dk
In-Reply-To: <20020415194324.GA19387@ritz.math.fu-berlin.de> from "Sven Guckes" at Apr 15, 2002 09:43:25 PM
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> 
> * Bart Schaefer <schaefer@brasslantern.com> [2002-04-15 17:56]:
> > ls -l ${(@)$(hash -m prefix\*)#*=}
> 
> thanks, Bart!  :-)
> 
> but there must be something about
> what Peter Stephenson said in his mail,
> because his version works always.  so
> now I'm using "whence" in my function:
> 
> # function _lap { for i in  ${(@)$(hash -m $1\*)#*=};   do ls -l $i; done}
>   function _lap { for i in "${(@f)$(whence -pm $1\*)}"; do ls -l $i; done}
> 
> zsh> _lap zsh
> -rwxr-xr-x   2 guckes   emailer    456536 Oct 29 03:32 /home/sguckes/bin/zsh-4.0.4
> -rwxr-xr-x   1 root     root       405212 Jun 23  1999 /import/local/bin/zsh-3.0.5
> -rwxr-xr-x   3 root     other      492576 Mar 24  2001 /import/local/bin/zsh-3.0.6
> -rwxr-xr-x   3 root     other      492576 Mar 24  2001 /import/local/bin/zsh-3.0.8
> -rwxr-xr-x   2 guckes   emailer    456536 Oct 29 03:32 /home/sguckes/bin/zsh
> 
> cool! :-)
> 

and something like:

  function _lap { tmp="${(@f)$(whence -pm $1\*)}"; [[ ! -z $tmp ]] && ls -l ${=tmp} }

will produce fewer processes on the way.

Dan.



P.S. I wouldn't know why

  function _lap { tmp=$(whence -pm $1\*); [[ ! -z $tmp ]] && ls -l ${=tmp} }

is not as good, but I'm such a shameless newbie, so it is not that surprising.