man/man1/df.1

.pa 1
.he 'DF (I)'1/20/73'DF (I)'
.ti 0
NAME            df -- disk free
.sp
.ti 0
SYNOPSIS        df\b\b__ [ filesystem ]
.sp
.ti 0
DESCRIPTION     df\b\b__
prints out the number of free blocks
available on a file system.
If the file system is unspecified,
the free space on all of
the normally mounted file systems
is printed.
.sp
.ti 0
FILES           /dev/rf?,
/dev/rk?,
/dev/rp?
.sp
.ti 0
SEE ALSO        check(VIII)
.sp
.ti 0
DIAGNOSTICS     --
.sp
.ti 0
BUGS            --