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Re: grep
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From:
Mandar Rahurkar
Date:
April 2, 2002 23:22
Subject:
Re: grep
Message ID:
Pine.GSO.4.33.0204030018290.20640-100000@cslr.Colorado.EDU
Thanks a million guys ....my prob is solved.
Could you please tell me which are good references for regular expressions
for perl ...
Many Thanks
Mandar
On Tue, 2 Apr 2002, John W. Krahn wrote:
> Sudarsan Raghavan wrote:
> >
> > Mandar Rahurkar wrote:
> >
> > > thanks to everyone for replying however I think i failed to define the
> > > problem accurately :
> > >
> > > i have files assigned to @files variable :
> > >
> > > 2168a5_vow_band_1.fea
> > > 169b2_vow_band_1.fea
> > > 2168d6_vow_band_1.fea
> > > 2168d5_vow_band_1.fea
> > > 169g3_vow_band_1.fea
> > > neutral.txt
> > >
> > > And i want the files say for eg suffix d and 1 and with extension fea.The
> > > thing is if i try to match d all will get matched for obvious reason.
> > >
> > > basically I wanna generate the same output as of the following command on
> > > shell prompt :
> > > ls ???[g][^1] *.fea
> > > ** will generate all files whose 4th char is g followed by character which
> > > is not 1.
> >
> > Loop through the array and check the value against this regexp
> > m/.{3}g[^1].*\.fea/
> > If the array is being populated through some kind of file listing, my
> > earlier suggestion
> > holds.
>
> Don't forget to anchor the regex at the beginning and end of the string:
>
> @files = grep /^.{3}g[^1].*\.fea$/, @files;
>
>
> John
> --
> use Perl;
> program
> fulfillment
>
> --
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