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RocketLink!--> Man page versions: OpenBSD FreeBSD NetBSD RedHat Others

[IEEE Std1003.2-1992 (``POSIX.2'')]

DF(1)                      OpenBSD Reference Manual                      DF(1)

     df - display free disk space

     df [-hiklnP] [-t type] [[file | file_system] ...]

     The df utility displays statistics about the amount of free disk space on
     the specified file_system or on the file system of which file is a part.
     Values are displayed in 512-byte per block block counts.  If neither a
     file nor a file_system operand is specified, statistics for all mounted
     file systems are displayed (subject to the -l and -t options below).

     The following options are available:

     -h      "Human-readable" output.  Use unit suffixes: Byte, Kilobyte,
             Megabyte, Gigabyte, Terabyte, Petabyte, Exabyte in order to re-
             duce the number of digits to four or less.

     -i      Include statistics on the number of free inodes.

     -k      By default, all sizes are reported in 512-byte block counts.  The
             -k option causes the numbers to be reported in kilobyte counts.

     -l      Display statistics only about mounted file systems with the
             MNT_LOCAL flag set. If a non-local file system is given as an ar-
             gument, a warning is issued and no information is given on that
             file system.

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

     -P      Print out information in a stricter format designed to be parsed
             by portable scripts.

     -t type
             Indicate the actions should only be taken on filesystems of the
             specified type. More than one type may be specified in a comma
             separated list.  The list of filesystem types can be prefixed
             with ``no'' to specify the filesystem types for which action
             should not be taken. If a file system is given on the command
             line that is not of the specified type, a warning is issued and
             no information is given on that file system.

     BLOCKSIZE  If the environment variable BLOCKSIZE is set, and the -k op-
                tion is not specified, the block counts will be displayed in
                units of that size block.

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

     The df utility is compliant with the IEEE Std1003.2-1992 (``POSIX.2'')

     A df utility appeared in Version 6 AT&T UNIX.

OpenBSD 2.6                    January 13, 1994                              2

Source: OpenBSD 2.6 man pages. Copyright: Portions are copyrighted by BERKELEY
SOFTWARE DESIGN, INC., The Regents of the University of California, Massachusetts
Institute of Technology, Free Software Foundation, FreeBSD Inc., and others.

(Corrections, notes, and links courtesy of RocketAware.com)

[Detailed Topics]
FreeBSD Sources for df(1)
OpenBSD sources for df(1)

[Overview Topics]

Up to: File System Information - Obtaining information of the filesystem as a whole. Status of disk subsystems, capacity, etc.

RocketLink!--> Man page versions: OpenBSD FreeBSD NetBSD RedHat Others

[IEEE Std1003.2-1992 (``POSIX.2'')]

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