Df (Unix)
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df (abbreviated from disk free) is a Unix computer program to display the amount of disk space used and available on a system. Typically, df collects its data by reading the mtab file and directly polling listed file systems for statistics.
In Linux, it is a part of the GNU Coreutils package.
The df utility may first have appeared in version 3 of AT&T UNIX.
External links
- df section in the GNU coreutils manual (http://www.gnu.org/software/coreutils/manual/html_node/coreutils_84.html)
- OpenBSD df man page @ rootr.net (http://rootr.net/man/man/df/1)