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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
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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.

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Alternatives

There are 6 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

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What others think

"rename"

Comment by TeacherTiger 183 weeks ago

Not on Mac OS X.

Comment by argherna 183 weeks 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 183 weeks ago

Better:

for f in *.xml.skippy; do mv "$f" "${f/.skippy/}"; done
Comment by eightmillion 183 weeks 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 183 weeks ago

@eightmillion

Try that in pure bash ;)

rename -v 's/\w+\.(\dx\d+)\.(.+)\.german.*\.(\w{3,})/$1 - $2.$3/' *
Comment by sputnick 183 weeks 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 183 weeks 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 183 weeks 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 183 weeks 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 183 weeks 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 183 weeks 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 183 weeks ago

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

Comment by argherna 183 weeks ago

Maybe 'mmv' is available on Mac OS X?

mmv '*.skippy' '#1'
Comment by hfs 182 weeks and 6 days ago

@hfs - it is not.

Comment by argherna 182 weeks and 6 days ago

Your point of view

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