From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <4A297A41.2070803@Princeton.EDU>
Date: Fri,  5 Jun 2009 16:04:17 -0400
From: Martin Harriss <martin@Princeton.EDU>
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To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: Re: [9fans] simple question: multiple rename
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Rudolf Sykora wrote:
> Hello,
>
> I realized I cannot come up with a simple solution for the following.
> I want to rename all the files whose names end with _g_b to just _g,
> e.g. hello_g_b should be renamed to hello_g.
> I simply don't know an easy way.
> [the opposite way is simple: for(i in *_g) mv $i $i^_b ]
> I only think about so complicated ways like
>
> for(i in *_g_b) {
>     s = `{sam -d <<EOF <{echo $i} >[2] /dev/null
>         1s/(.+)_g/\1
>         p
>         EOF
>         }
>     mv $i $s
> }
>
> which describes my idea, but doesn't work, actually. (btw. how can one
> correct it?)
>
> Thanks
> Ruda
>

sed is your friend:

s=`{ echo $i | sed -e 's/_g_b/_g/' }


Martin