Editing Df (Unix) (section)

==History==
The command first appeared in [[Ancient Unix|Version 1 AT&T Unix]].<ref>{{man|1|df|FreeBSD}}</ref> The command is part of the [[X/Open]] Portability Guide since issue 2 of 1987. It was inherited into the first version of [[POSIX]] and the [[Single Unix Specification]] (SUS).<ref>{{man|cu|df|SUS}}</ref> The implementation of {{code|df}} bundled in [[GNU]] [[coreutils]] was written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.<ref>{{man|1|df|ManKier}}</ref> The command is available for [[Windows]] via [[UnxUtils]].<ref>{{Cite web|url=http://unxutils.sourceforge.net/|title=Native Win32 ports of some GNU utilities|website=unxutils.sourceforge.net}}</ref>