On Fri, Jan 29, 2010 at 10:04:33AM +0000, Steven D'Aprano wrote:
> > I know this is a python list but if you really want to get the job done
> > quickly this is one method without writing python code:
> >
> > $ cat /tmp/y
> > AAAAAGACTCGAGTGCGCGGA 0
> > AAAAAGATAAGCTAATTAAGCTACTGG 0
> > AAAAAGATAAGCTAATTAAGCTACTGGGTT 1
> > AAAAAGGGGGCTCACAGGGGAGGGGTAT 1
> > AAAAAGGTCGCCTGACGGCTGC 0
> > $ grep -v 0 /tmp/y > tmp/z
> > $ cat /tmp/z
> > AAAAAGATAAGCTAATTAAGCTACTGGGTT 1
> > AAAAAGGGGGCTCACAGGGGAGGGGTAT 1
>
> That will do the wrong thing for lines like:
>
> AAAAAGATAAGCTAATTAAGCTACTGGGTT 10
In that case change the grep to ' 0$' then only the lines with a
singel digit '0' at the end of the line will be excluded.
One can do the same using regulare expressions in Python and it will
probably a lot slower on large files.
Regards
Johann
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Johann Spies Telefoon: 021-808 4599
Informasietegnologie, Universiteit van Stellenbosch
"My son, if sinners entice thee, consent thou not."
Proverbs 1:10
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