df(1) on OpenBSD
The text e9280faf0aa0, as OpenBSD 6.0, OpenBSD 5.9, OpenBSD 5.8, OpenBSD 5.7, OpenBSD 5.6 shipped it.
display free disk space
Flags it lists
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-P -
-h -
-i -
-k -
-l -
-n -
-t