[Cialug] List file types in a directory

Kendall Bailey krbailey at gmail.com
Thu Mar 8 16:39:37 CST 2007


Not simple enough for a single command line, but here's a python
script which will play the role of awk in the pipeline shown

import sys,re
for i in sys.stdin :
   if re.match(".*\.([^.])+",i.strip()) : print i.strip().split(".")[-1]

I'm sure it would be a one liner in perl...



On 3/8/07, David Champion <dchampion at visionary.com> wrote:
> Both of those methods will display files with no periods, i.e. put a
> file in there called "test" and it will echo out "test".
>
> -dc
>
> Tim Wilson wrote:
> > ls -1 | awk -F'.' '{print $NF}' | sort | uniq
> > or sort -u instead of sort | uniq
> >
> > I use awk because you could have foo.bar.jpg.  Using NF in awk will
> > guarantee you'll get jpg.
> >
> > On 3/8/07, Chris Freeman <cwfreeman at gmail.com> wrote:
> >> Assuming only one '.' per filename:
> >>
> >> ls -1 | cut -f2 -d. | sort -u
> >>
> >> Chris
> >>
> >>
> >> On 3/8/07, Daniel Juliano < dan at danandlaurajuliano.com> wrote:
> >> > So, how would I get a list of file types for all files in a directory?
> >> > Let's say I've got the following:
> >> > test1.txt
> >> > test2.txt
> >> > test3.jpg
> >> >
> >> > I'd like something similar to:
> >> > .txt
> >> > .jpg
> >> >
> >> > Any ideas?
> >> >
> >> >
> >> > _______________________________________________
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> >> > Cialug at cialug.org
> >> > http://cialug.org/mailman/listinfo/cialug
> >> >
> >>
> >>
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> >> http://cialug.org/mailman/listinfo/cialug
> >>
> >>
> >
> >
>
>
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