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Remove an unnecessary suffix from a file name for all files in a directory

Terminal - Remove an unnecessary suffix from a file name for all files in a directory
for f in $(ls *.xml.skippy); do mv $f `echo $f | sed 's|.skippy||'`; done
2009-11-19 21:36:26
User: argherna
Functions: ls mv sed
-2
Remove an unnecessary suffix from a file name for all files in a directory

For this example, all files in the current directory that end in '.xml.skippy' will have the '.skippy' removed from their names.

Alternatives

There are 4 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

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What others think

"rename"

Comment by TeacherTiger 261 weeks and 6 days ago

Not on Mac OS X.

Comment by argherna 261 weeks and 6 days ago

Scary :)

rename 's|.skippy||' *.xml.skippy

Take care Archlinux users, Arch implements something different. Follow this thread to change that like most of the modern systems : http://bbs.archlinux.org/viewtopic.php?id=32937

Comment by sputnick 261 weeks and 6 days ago

Better:

for f in *.xml.skippy; do mv "$f" "${f/.skippy/}"; done
Comment by eightmillion 261 weeks and 6 days ago

@argherna

You can install rename, that's "only" a perl script, wrote by Larry Wall himself ( perl dad ), see http://search.cpan.org/CPAN/authors/id/P/PE/PEDERST/rename-1.6.tar.gz or just download it there http://www.sputnick-area.net/scripts/rename

Comment by sputnick 261 weeks and 6 days ago

@eightmillion

Try that in pure bash ;)

rename -v 's/\w+\.(\dx\d+)\.(.+)\.german.*\.(\w{3,})/$1 - $2.$3/' *
Comment by sputnick 261 weeks and 6 days ago

@sputnick

I love a challenge. This isn't perfect, but it's pretty close and can be refined further.

for i in *;do if [[ $i =~ [[:alpha:]]+\.[[:digit:]]x[[:digit:]]+\..+\.german.*\.[[:alpha:]]3? ]];then x="${i#*.}";x="${x%%.*}";y="${i#*.*.}";y="${y%%.*}";mv "$i" "$x - $y.${i##*.}";echo "$i renamed as $x - $y.${i##*.}";fi;done
Comment by eightmillion 261 weeks and 6 days ago

I should also note that my previous comment wasn't in response to yours, if that wasn't clear. It was in response to the original posting.

Comment by eightmillion 261 weeks and 6 days ago

@eightmillion - will give yours a try

@sputnick - was looking for a way to do the job w/out needing to install anything extra. it gets the job done--a usable one-off for small numbers of files in a directory.

Comment by argherna 261 weeks and 6 days ago

Sorry argherna but your snippet seems odd.

eightmillion one is quite better in the way you describes :

for f in *.xml.skippy; do mv "$f" "${f/.skippy/}"; done

See useless use of ls : http://www.partmaps.org/era/unix/award.html#ls

And in general http://www.partmaps.org/era/unix/award.html there's good caveats to avoid problem in shell programming.

Moreover, parameter expansions are less overkill than sed in that simple case. See http://www.gnu.org/software/bash/manual/bashref.html#index-parameter-expansion-85

Comment by sputnick 261 weeks and 6 days ago

The backquote (`) is used in the old-style command substitution, e.g. foo=`command`. This syntax is deprecated in favor of foo=$(command). Backslash handling inside $() is less surprising, and $() is easier to nest. See http://mywiki.wooledge.org/BashFAQ/082

Comment by sputnick 261 weeks and 6 days ago

There is one small problem with my version that should probably be changed. "${f/.skippy/}" will strip the first instance of ".skippy" in the filename which would be problematic for files named foo.skippy.xml.skippy. "${f%.skippy}" will only strip ".skippy" from the end of the file name.

Comment by eightmillion 261 weeks and 6 days ago

All excellent feedback. Thanks for the pointers. Much appreciated.

Comment by argherna 261 weeks and 6 days ago

Maybe 'mmv' is available on Mac OS X?

mmv '*.skippy' '#1'
Comment by hfs 261 weeks and 6 days ago

@hfs - it is not.

Comment by argherna 261 weeks and 6 days ago

Your point of view

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