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Article #4579Re: Gawk v24.7: Why Bother???
From: matthew green
Date: Fri, 12 May 1995 00:00
Date: Fri, 12 May 1995 00:00
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1424 bytes
kimble@mistral.co.uk (Mark Sheppard) writes:
tchrist@mox.perl.com (Tom Christiansen) wrote:
>Of course, if's something awk DOESN'T do, than it's slightly easier to do them
>in perl. :-)
>
> # find first unused uid after 100, even with perl4
> perl -le '$i = 100; $i++ while ($x) = getpwuid($i); print $i'
You can do this using gawk:
gawk -F: '{u[$3]=$1;}END{for(i=100;u[i];i++);print(i);}' /etc/passwd
iguessyoucandothatifyoulike.
of course, it doesn't work if your getpwuid() doesn't actually have
anything to do with /etc/passwd.
.mrg.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1020c6,2f1e554b7912769e X-Google-Attributes: gid1020c6,public X-Google-Thread: 1012a6,4df32fd703a6b724 X-Google-Attributes: gid1012a6,public X-Google-Thread: 1025b4,4df32fd703a6b724 X-Google-Attributes: gid1025b4,public X-Google-Thread: 10259a,c6417ab4174dabc8 X-Google-Attributes: gid10259a,public From: mrg@fulcrum.com.au (matthew green) Subject: Re: Gawk v24.7: Why Bother??? Date: 1995/05/12 Message-ID: <mrg.800260527@fulcrum.com.au> X-Deja-AN: 102573001 references: <3mpj9f$d1h@csnews.cs.colorado.edu> <jerry.798231458@tivoli.com> <3n8qt8$shf@smurf.noris.de> <3nbdqv$cbc@csnews.cs.colorado.edu> <3nsibr$879@kimble.mistral.co.uk> organization: The Fulcrum Consulting Group newsgroups: comp.unix.shell,gnu.misc.discuss,comp.lang.perl,comp.unix.admin