Again I am trying to rename some video files, and again I am having problems with my command. If I could get another set of eyes to look at this and figure out what i'm not seeing I would be grateful.

I have files like this;

'DARK Matter S01E03 Episode Three.mp4'

'DARK Matter S01E04 Episode Four.mp4'

etc...

I am trying to remove the " Episode Three", " Episode Four" etc from the names and I wrote this command, but it's not quite working as expected.

for file in *Episode*;do echo "rename \"$file\" "\"$file" | sed 's/ Episode*./.')";done

The result of this command is;

rename "DARK Matter S01E03 Episode Three.mp4" "DARK Matter S01E03 Episode Three.mp4 | sed 's/ Episode*./.')
rename "DARK Matter S01E04 Episode Four.mp4" "DARK Matter S01E04 Episode Four.mp4 | sed 's/ Episode*./.')
rename "DARK Matter S01E05 Episode Five.mp4" "DARK Matter S01E05 Episode Five.mp4 | sed 's/ Episode*./.')

It's not recognizing the pipe to sed and my sed command itself is not written correctly (I know, i'm terrible with regular expressions). I would appreciate any help you could give.

CodePudding user response：

I figured it out myself finally;

for file in *Episode*;do echo "rename \"$file\" \"$file\"" | sed 's/ Episode[^.]*//2';done

rename "DARK Matter S01E03 Episode Three.mp4" "DARK Matter S01E03.mp4"

rename "DARK Matter S01E04 Episode Four.mp4" "DARK Matter S01E04.mp4"

rename "DARK Matter S01E05 Episode Five.mp4" "DARK Matter S01E05.mp4"

CodePudding user response：

Using a regex and pulling the matching pieces from the BASH_REMATCH[] array:

regex='(.*) Episode [^.] (.*)'

for file in *Episode*
do
    if [[ "${file}" =~ $regex ]]
    then
        # typeset -p BASH_REMATCH
        newfile="${BASH_REMATCH[1]}${BASH_REMATCH[2]}"
        cp "${file}" "${newfile}"
    fi
done

NOTES:

• the regex is defined to pickup anything after the first period (eg, .mp4, .mkv, some.other.suffix)
• uncomment the typeset -p command to display the contents of the BASH_REMATCH[] array
• replace cp with mv once the results have been verified

Assuming the following files:

$ ls -l *Dark*
-rw-rw----  1 username None 0 Feb 23 20:02 DARK\ Matter\ S01E03\ Episode\ Three.mp4
-rw-rw----  1 username None 0 Feb 23 20:02 DARK\ Matter\ S01E04\ Episode\ Four.mp4
-rw-rw----  1 username None 0 Feb 23 20:03 DARK\ Matter\ S01E05\ Episode\ Five.mkv

The code results in the following:

$ ls -l DARK*
-rw-rw----  1 username None 0 Feb 23 20:02 DARK\ Matter\ S01E03\ Episode\ Three.mp4
-rw-rw----  1 username None 0 Feb 23 20:08 DARK\ Matter\ S01E03.mp4
-rw-rw----  1 username None 0 Feb 23 20:02 DARK\ Matter\ S01E04\ Episode\ Four.mp4
-rw-rw----  1 username None 0 Feb 23 20:08 DARK\ Matter\ S01E04.mp4
-rw-rw----  1 username None 0 Feb 23 20:03 DARK\ Matter\ S01E05\ Episode\ Five.mkv
-rw-rw----  1 username None 0 Feb 23 20:08 DARK\ Matter\ S01E05.mkv