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From:	"Dave Korn" <dk AT artimi DOT com>
To:	<cygwin AT cygwin DOT com>
Subject:	RE: "which" command does not expand "~" in path
Date:	Mon, 27 Sep 2004 19:27:44 +0100
MIME-Version:	1.0
In-Reply-To:	<Pine.GSO.4.61.0409271347370.13693@slinky.cs.nyu.edu>
Message-ID:	<NUTMEGBxhJTANZwwPcM0000010f@NUTMEG.CAM.ARTIMI.COM>
X-OriginalArrivalTime:	27 Sep 2004 18:27:44.0923 (UTC) FILETIME=[AEA8E6B0:01C4A4BF]
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id i8RISFaW016340

> -----Original Message-----
> From: Igor Pechtchanski
> Sent: 27 September 2004 18:50

> On Mon, 27 Sep 2004, Dave Korn wrote:
> 
> > > -----Original Message-----
> > > From: cygwin-owner On Behalf Of Hannu E K Nevalainen
> > > Sent: 27 September 2004 18:24
> >
> > > you wrote:
> > >
> > > > On Mon, 27 Sep 2004, Sven Köhler wrote:
> >
> > > >> I just wondered how to write a "correct" shell-script that
> > > runs with
> > > >> /bin/sh, and it seems there is no way 
> "shell-script"-way to figure
> > > >> out a  user's homedir.
> > > >
> > > > You could try
> > > >
> > > > awk -F: "/^username:/"'{print $6}' < /etc/passwd
> > > >
> > > > (the pattern is in double quotes so that variable 
> substitution can
> > > > occur, e.g., you could change "username" to "$1" in a 
> shell script).
> > > > Igor --
> > >
> > > $ u="Hannu";sed -nre "s/^$u.*:(.*):.*$/\1/p" </etc/passwd
> 
> This works only because "/" is not a valid variable name. :-p
> 
> > > I bet there are some more other ways to do it... ;-P
> >
> > My first thought was
> >
> > grep "username" /etc/passwd | cut -d ':' -f 6
> 
> Correction for the archives:
> 
> grep "^username:" /etc/passwd | cut -d ':' -f 6


  That's not a correction, that's an improvement.....

  ...well, if you assume that multiple matches from the first version was a
feature, not a bug....

<g>

   cheers, 
      DaveK
-- 
Can't think of a witty .sigline today....


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