Find command, linux

Question

find -type f -name "*.avi" -exec md5sum {} + > checklist.chk
find -type f -name "*.mp4" -exec md5sum {} + > checklist.chk

How to combine these two commands? 1. Either by combining both search terms in one command or 2. Both commands adding output to one file. Hope it's clear what I am trying to do.

Answer 1

find -type f \\( -name "*.avi" -o -name "*.mp4" \\) -exec md5sum {} + > checklist.chk

见这里解释

Answer 2

For Both commands adding output to one file .You Can do:

find -type f -name "*.avi," -exec md5sum {} + >> checklist.chk
find -type f -name "*.mp4," -exec md5sum {} + >> checklist.chk

Output file will have results of first command first and then the results of second command.

Answer 3

You can use the -o option as OR operator in commands. So, you can do it like this.

find -type f -name "*.avi" -o -name "*.mp4" -exec md5sum {} + > checklist.chk