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Article #4580Re: Gawk v24.7: Why Bother???
From: Chris Bitmead
Date: Tue, 09 May 1995 00:00
Date: Tue, 09 May 1995 00:00
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1440 bytes
In article <3o2k4j$sv7@pipe.pipex.net> tim@pipex.net (Tim Goodwin) writes:
>In article <3nsibr$879@kimble.mistral.co.uk>,
>Mark Sheppard <kimble@mistral.co.uk> wrote:
>>> # find first unused uid after 100, even with perl4
>>> perl -le '$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
>
>The awk script doesn't work if you're using NIS, or in general when
>/etc/passwd doesn't contain every uid.
ypcat passwd | gawk -F: '{u[$3]=$1;}END{for(i=100;u[i];i++);print(i);}'
--
Chris Bitmead
chrisb@ind.tansu.com.au
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1025b4,4df32fd703a6b724 X-Google-Attributes: gid1025b4,public X-Google-Thread: 1012a6,4df32fd703a6b724 X-Google-Attributes: gid1012a6,public X-Google-Thread: 10259a,c6417ab4174dabc8 X-Google-Attributes: gid10259a,public X-Google-Thread: 1020c6,f916f0b90003bf8a,start X-Google-Attributes: gid1020c6,public From: chrisb@stork.cssc-syd.tansu.com.au (Chris Bitmead) Subject: Re: Gawk v24.7: Why Bother??? Date: 1995/05/09 Message-ID: <CHRISB.95May9190513@stork.cssc-syd.tansu.com.au> X-Deja-AN: 102298309 references: <3mpj9f$d1h@csnews.cs.colorado.edu> <3n8qt8$shf@smurf.noris.de> organization: Telecom Australia reply-to: chrisb@ind.tansu.com.au newsgroups: comp.unix.shell,gnu.misc.discuss,comp.lang.perl,comp.unix.admin