df(1) on FreeBSD
The text f7a347d0f0e7, as FreeBSD 5.5-RELEASE, FreeBSD 5.4-RELEASE shipped it.
display free disk space
Flags it lists
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-H -
-P -
-a -
-b -
-c -
-g -
-h -
-i -
-k -
-l -
-m -
-n -
-t