Disk usage of files whose names match a regex, in Linux?

Question

So, in many situations I wanted a way to know how much of my disk space is used by what, so I know what to get rid of, convert to another format, store elsewhere (such as da

Answer 1

du is my favorite answer. If you have a fixed filesystem structure, you can use:

du -hc *.bak

If you need to add subdirs, just add:

du -hc *.bak **/*.bak **/**/*.bak

etc etc

However, this isn't a very useful command, so using your find:

TOTAL=0;for I in $(find . -name \*.bak); do  TOTAL=$((TOTAL+$(du $I | awk '{print $1}'))); done; echo $TOTAL

That will echo the total size in bytes of all of the files you find.

Hope that helps.