[Gllug] Perl scripting challenge

[Pete Ryland]

On 04/10/06, salsaman at xs4all.nl <salsaman at xs4all.nl> wrote:
>
> > On Wed, Oct 04, 2006 at 04:47:01PM +0100, - Tethys wrote:
> >> On 10/4/06, Simon Morris <simon.morris at cmtww.com> wrote:
> >>
> >> >Problem there is I don't know what the duplicated filenames are...
> >> >Apparently on this filesystem (I'm about to inherit a problem unless I
> >> >can deflect it away :-) ) they had a history of creating filenames
> that
> >> >are identical apart from case.
> >>
> >> No problem:
> >>
> >> #!/bin/sh
> >>
> >> find "${1:-.}" -type d -print | while read dir
> >> do
> >>    preserve_case=$(ls -a1 "$dir" | wc -l)
> >>    ignore_case=$(ls -a1 "$dir" | sort -f | uniq -i | wc -l)
> >>    if [ "$preserve_case" != "$ignore_case" ]
> >>    then
> >>        echo "Directory has duplicate filenames: $dir"
> >>    fi
> >> done
> >
> > But the problem is that he wants to know what the duplicated filenames
> > are, right?  Knowing that there are duplicate filenames is obviously
> > much simpler.
> >
>
> My version will do that. It also uses toLOWER_uni which the perl
> guidelines recommend (to handle localised filenames).



#!/bin/bash

find ${1:-.} -type f -exec basename {} \; | sort -f | uniq -di | \
while read dupfilename
do
  echo $dupfilename:
  find ${1:-.} -iname "$dupfilename" -exec echo "  {}" \;
done

Pete
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