= Script: Bash: Du for every existing directory
This is a short special page just dedicated to one command or script. The purpose here is just for me to learn scripting. I think most people will think these snippets are too simple too take notice from.

<code>
for i in `ls -1`; do if [[ -d $i ]]; then sudo du -sm $i; fi; done
</code>

* ls -1 lists all files and directories each on a separate line
* [ -d ] is true if listed variable is a directory
* sudo provides the correct rights to read all files listed beneath the directories


= Error
I got this error while running the line:
<code>
-bash: [: ls: binary operator expected
</code>

It was solved when I changed {{{[ -d $i ]}}} to {{{[[ -d $i ]]}}} (double brackets). 

{{tag>scripts}}