== A simple way to get a disk space usage summary

In the spirit of my little shell scripts, here's a simple way to get a
useful summary of disk space usage on a Unix system:

> _du | sort -nr | less_

(substitute the pager of your choice for _less_, and use '_du -x_' as
necessary.)

This is less pretty than the various graphical disk space visualization
programs that float around, but I find it gives me pretty much the
information I need. It's pretty easy to narrow down what areas of the
filesystem, or what specific directories, are using up all of the space.

Applying it to various filesystems on stock machines is often
interesting, especially _/var_; it's often a bit surprising just how
much space some packages need. (For instance, a surprisingly large
amount of disk space is going to _/var/sadm/pkg_ on my Solaris test
machine.)