/var

In Linux (and whatever else; don't fuck with me!), this directory contains variable data, which means it can and will all change constantly. Standard subdirectories of /var (at least on a Red Hat distro):

• /var/account
• /var/lock
• /var/log
• /var/mail
• /var/opt
• /var/run
• /var/spool
• /var/tmp