Find all [filename].mp4 and rename [filename].audio [duplicate]

Here is a fast and portable solution still handling oddly named files :

find . -name "*.mp4" -exec sh -c 'for i do mv -- "$i" "${i%.mp4}.audio"; done' sh {} + 

Use this for loop:

for f in *; do [ -f "$f" ] && mv -v -- "$f" "${f%.mp3}.audio" done 

• for i in * loops trough all files and directories (except dot-files) in the current working directory and stores the current processed file in $f
  • [ -f "$f" ] checks if it's a regular file
  • mv -v renames the file (-- is that the filenames will not be interpreted as arguments by mistake)
  • ${f%.mp3}.audio removes the .mp3 extension and adds the .audio extension (Parameter Expansion)

Here is a solution that uses find, sed, and xargs. This solution works even if there are spaces in the name.

It first gets the files using find. Then, gets the base name of the file using sed. Finally, it does the move to change the extension.

Note the code below is multi-line for clarity. You should probably execute it in one line.

# split into three lines for clarity # should execute as one line find . -maxdepth 1 -name '*.mp4' | sed -r 's/.*\/([^/]+)\.mp4/\1/g' | xargs -ix mv "x.mp4" "x.audio" 

Below is an alternative solution using basename. This solution may work with names containing spaces (have not tested this one).

It first gets all the files with .mp4 extension, then gets the base name, and finally renames each with the audio extension.

# split into three lines for clarity # should execute as one line find . -maxdepth 1 -name '*.mp4' -print0 | xargs -0 -ix basename "x" .mp4 | xargs -ix mv "x.mp4" "x.audio" 

You can use

for file in `ls *.mp4`; { mv $file `echo $file | sed 's/.mp4/.audio/g'`; }