Df

From Linuzz

---

Revision as of 17:26, 23 December 2007

DF(1) User Commands DF(1)

NAME

      df - report file system disk space usage

SYNOPSIS

      df [OPTION]... [FILE]...

DESCRIPTION

      This  manual  page  documents  the GNU version of df.  df displays the amount of disk space available on the file
      system containing each file name argument.  If no file name is  given,  the  space  available  on  all  currently
      mounted  file  systems  is  shown.   Disk space is shown in 1K blocks by default, unless the environment variable
      POSIXLY_CORRECT is set, in which case 512-byte blocks are used.

      If an argument is the absolute file name of a disk device node containing a mounted file  system,  df  shows  the
      space  available  on  that file system rather than on the file system containing the device node (which is always
      the root file system).  This version of df cannot show the space available on unmounted file systems, because  on
      most kinds of systems doing so requires very nonportable intimate knowledge of file system structures.

OPTIONS

      Show information about the file system on which each FILE resides, or all file systems by default.

      Mandatory arguments to long options are mandatory for short options too.

      -a, --all
             include dummy file systems
-B, --block-size=SIZE use SIZE-byte blocks

      -h, --human-readable
             print sizes in human readable format (e.g., 1K 234M 2G)

      -H, --si
             likewise, but use powers of 1000 not 1024

      -i, --inodes
             list inode information instead of block usage

      -k     like --block-size=1K

      -l, --local
             limit listing to local file systems

      --no-sync
             do not invoke sync before getting usage info (default)

      -P, --portability
             use the POSIX output format

      --sync invoke sync before getting usage info

      -t, --type=TYPE
             limit listing to file systems of type TYPE

      -T, --print-type
             print file system type

      -x, --exclude-type=TYPE
             limit listing to file systems not of type TYPE

      -v     (ignored)
--help display this help and exit

      --version
             output version information and exit

      SIZE  may  be  (or  may  be an integer optionally followed by) one of following: kB 1000, K 1024, MB 1000*1000, M
      1024*1024, and so on for G, T, P, E, Z, Y.

AUTHOR

      Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.

REPORTING BUGS

      Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

      Copyright © 2006 Free Software Foundation, Inc.
      This is free software.  You may redistribute copies of it under the terms  of  the  GNU  General  Public  License
      <http://www.gnu.org/licenses/gpl.html>.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

      The  full  documentation  for  df  is  maintained  as a Texinfo manual.  If the info and df programs are properly
      installed at your site, the command

             info df

      should give you access to the complete manual.

df 5.97 September 2007 DF(1)

Manual page df(1) line 58/94 (END)