get size of many files at once

Question

I've found that I can print a list a directories total size with

du -sb myDirectory

Is there anyway I can apply this same command to an array of directories du -sb (myDirectory yourDirectory hisDirectory)?

Answer 1

Specify everything including the sub-directories with:

du -sb */*

Answer 2

Just list the dirs

du -sb myDirectory yourDirectory hisDirectory

Note how the man page says:

du [OPTION]... [FILE]...

That's what the [FILE]... means.

If you want to examine all the directories in the current directory

du -sb */

Answer 3

Try

du -sb {myDirectory,yourDirectory,hisDirectory}