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I have a number of video files using a naming scheme like

some-words-SxxExx.extension

which is my preference. Unfortunately I have a lot of files in this format

some-words-SxxExx-words-I-want-to-remove.extension

I need to remove automagically remove everything after the Exx portion.

  • Should we assume the xx stand for something - like pairs of digits? – steeldriver Jan 22 at 18:55
  • Do you have the rename script installed? – Jeff Schaller Jan 22 at 19:09
  • Yes, the xx stand for a pair of digits. – Terry Romphf Jan 22 at 19:26
  • Yes, I do have perl rename installed – Terry Romphf Jan 22 at 19:27
  • Lots of answers, and quickly I might add. I was up all night so I'm going to hit the sack for a bit. I'll be sure to close after I've made my choice. Thanks for all the great input. – Terry Romphf Jan 22 at 20:46
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Assuming the x's are placeholders, zmv should be able to do that with zmv -nv '(*S??E??)*.ext' '$1.ext'

% touch foo-S01E02-garbage.ext bar-S07E17-moregarbage.ext
% zmv -nv '(*S??E??)*.ext' '$1.ext'
mv -- bar-S07E17-moregarbage.ext bar-S07E17.ext
mv -- foo-S01E02-garbage.ext foo-S01E02.ext

You could also use '(*S[0-9][0-9]E[0-9][0-9])*.ext' to just match digits in place of x.

Or if you want to use sed:

for f in *.ext; do
    echo mv -n "$f" "$(echo "$f" | sed -e 's/\(S[0-9][0-9]E[0-9][0-9]\).*\.ext/\1.ext/')"
done

or with the Perl rename command (which is apparently now called file-rename in Debian):

file-rename -n -v 's/(S[0-9]{2}E[0-9]{2}).*\.ext/$1.ext/' *.ext

(Remove the echo from front of mv and the -n flags from zmv and file-rename to actually do the renames. mv -n on the other hand tells it to not overwrite existing files, this works at least in GNU mv.)

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How about

$ echo 'some-words-SxxExx-words-I-want-to-remove.extension' | sed 's/\(S..E..\)[^.]*/\1/'
some-words-SxxExx.extension

(although I expect a zsh aficionado would be able to do it more simply using shell substitution).

  • Yes, I do prefer zsh, but I'm no expert. I'm clinically depressed and my thought processes are slowed to about the speed of someone with a bad hangover. Not stupid, but I do have trouble retaining stuff. Oh, well - just another challenge. – Terry Romphf Jan 22 at 19:36

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