Bash script to change file extension using regex

Question

I have a lot of files i've copied over from my iphone file system, to start with they were mp3 files, but app on iphone changed their names to some random staff which looks like:

1c03e04cc1bbfcb0c1237f57f1d0ae2e.mp3?extra=f7NhT68pNkmEbGA_I1WbVShXQ2E2gJAGBKSEyh3hf0hsbLB1cqnXDuepYA5ubcFm_B3KSsrXDuKVtWVAUh_MAPeFiEHXVdg

I only need to remove part of file name after mp3. Please give me a script - there are more than 600 files, and manually it is impossible.

Answer 1

您可以使用重命名命令：

rename "s/mp3\?.*/mp3/" *.mp3*

Answer 2

#!/bin/bash
shopt -s nullglob
for F in *.mp3\?*; do
    echo mv -v -- "$F" "${F%%.mp3\?*}.mp3"
done

Save it to a script like script.sh then run as bash /path/to/script.sh in the directory where the files exist.

Remove echo when you find it correct already.