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Re: [Help-bash] How to extract matching suffix pattern in bash?
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From: |
Chet Ramey |
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Subject: |
Re: [Help-bash] How to extract matching suffix pattern in bash? |
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Date: |
Thu, 14 Mar 2013 10:07:30 -0400 |
> On 03/13/2013 08:04 PM, Chet Ramey wrote:
> > On 3/13/13 6:21 PM, Peng Yu wrote:
> >> Hi,
> >>
> >> ${parameter%word} remove matching suffix pattern. I need something
> >> extract only the matching suffix which is to be not available
> >> according to bash manual. Do I miss anything?
> >
> > This is totally untested, but should be fairly self-explanatory, and is
> > portable to any Posix shell:
> >
> > suffix_pattern=whatever
> > prefix=${string%$suffix_pattern}
> > suffix=${string##$prefix}
>
> Except that it isn't robust if pattern contains globs:
Quote to taste.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU address@hidden http://cnswww.cns.cwru.edu/~chet/