FSF                                                         DF(1)

NAME
     df - report filesystem 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 filesys-
     tem containing each file name argument.  If no file name  is
     given, the space available on all currently mounted filesys-
     tems 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  filesystem, df shows the space
     available on that filesystem rather than on  the  filesystem
     containing  the  device  node  (which  is  always  the  root
     filesystem).  This version  of  df  cannot  show  the  space
     available on unmounted filesystems, because on most kinds of
     systems  doing  so  requires   very   nonportable   intimate
     knowledge of filesystem structures.

OPTIONS
     Show information about the filesystem  on  which  each  FILE
     resides, or all filesystems by default.

     -a, --all
          include filesystems having 0 blocks

     --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, --kilobytes
          like --block-size=1024

     -l, --local
          limit listing to local filesystems

     -m, --megabytes
          like --block-size=1048576

     --no-sync

df (fileutils) 4.1   Last change: April 2001                    1

FSF                                                         DF(1)

          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 filesystems of type TYPE

     -T, --print-type
          print filesystem type

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

     -v   (ignored)

     --help
          display this help and exit

     --version
          output version information and exit

AUTHOR
     Written by Torbjorn Granlund, David MacKenzie, Larry  McVoy,
     and Paul Eggert.

REPORTING BUGS
     Report bugs to <bug-fileutils@gnu.org>.

COPYRIGHT
     Copyright O 2001 Free Software Foundation, Inc.
     This is free software; see the  source  for  copying  condi-
     tions.   There  is NO warranty; not even for MERCHANTABILITY
     or FITNESS FOR A PARTICULAR PURPOSE.

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 (fileutils) 4.1   Last change: April 2001                    2