My client is using up to 300GB of disk space across three subdomains. Is there an easy way to see what is being used? For example, I would be able to see each subdomain and the size they are taking, and even each directory inside the subdomains? using ssh, or opensource application?
For a detailed set of directory usage, I like to use:
This will show the use of each directory (and all it's sub-contents), sorted with the largest at the top. The "-x" option is useful if the proc, sys, or other virtual file-systems are mounted (say you are running a du of the root directory).
For example, my 1.5GB /var has use like:
Ah, I see it's time to do a "yum clean all". :-)