4.4BSD/usr/share/man/cat1/df.0

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DF(1)                        BSD Reference Manual                        DF(1)

NNAAMMEE
     ddff - display free disk space

SSYYNNOOPPSSIISS
     ddff [--iinn] [--tt _t_y_p_e] [_f_i_l_e | _f_i_l_e_s_y_s_t_e_m _._._.]

DDEESSCCRRIIPPTTIIOONN
     DDff displays statistics about the amount of free disk space on the speci-
     fied _f_i_l_e_s_y_s_t_e_m or on the filesystem of which _f_i_l_e is a part.  Values are
     displayed in 512-byte per block block counts.  If neither a file or a
     filesystem operand is specified, statistics for all mounted filesystems
     are displayed (subject to the --tt option below).

     The following options are available:

     --ii      Include statistics on the number of free inodes.

     --nn      Print out the previously obtained statistics from the filesys-
             tems.  This option should be used if it is possible that one or
             more filesystems are in a state such that they will not be able
             to provide statistics without a long delay.  When this option is
             specified, ddff will not request new statistics from the filesys-
             tems, but will respond with the possibly stale statistics that
             were previously obtained.

     --tt      Only print out statistics for filesystems of the specified types.
             The recognized types are: ufs, nfs, mfs, lfs, pc, fdesc, portal
             and kernfs, along with the aggregates: all (the default), local
             (ufs, mfs, lfs), and misc (fdesc, portal, kernfs).  The string
             ``no'' may be prepending to a type to get its complement (e.g.
             ``nonfs'' to get non-NFS filesystems).  The first --tt option over-
             rides the default, additional such options will add to (or sub-
             tract from) the current set of types; e.g. either ``df -t ufs -t
             lfs'' or ``df -t local -t nomfs'' will display statistics for UFS
             and LFS filesystems.

EENNVVIIRROONNMMEENNTTAALL VVAARRIIAABBLLEESS
     BLOCKSIZE  If the environmental variable BLOCKSIZE is set, the block
                counts will be displayed in units of that size block.

BBUUGGSS
     The --nn and --tt flags are ignored if a file or filesystem is specified.

SSEEEE AALLSSOO
     quota(1),  statfs(2),  fstatfs(2),  getfsstat(2),  getmntinfo(3),
     fstab(5),  mount(8),  quot(8)

HHIISSTTOORRYY
     A ddff command appeared in Version 6 AT&T UNIX.

4th Berkeley Distribution        May 31, 1993                                1