How to calculate the total size of certain files only, recursive, in linux

Question

I\'ve got a bunch of files scattered across folders in a layout, e.g.:

dir1/somefile.gif
dir1/another.mp4
dir2/video/filename.mp4
dir2/some.file
dir2/blahbla         


        

Answer 1

For individual file size:

find . -name "*.mp4" -print0 | du -sh --files0-from=- 

For total disk space in GB:

find . -name "*.mp4" -print0 | du -sb --files0-from=-  | awk '{ total += $1} END { print total/1024/1024/1024 }'