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DF(1)                            User Commands                           DF(1)

       df - report file system disk space usage

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

       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 knowl-
       edge of file system structures.

       Show information about the file system on which each FILE resides, or all file sys-
       tems 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

              show statistics for a file instead of mount point

              produce a grand total

       -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

              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

              output version information and exit

       Display  values are in units of the first available SIZE from --block-size, and the
       DF_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environment  variables.   Otherwise,  units
       default to 1024 bytes (or 512 if POSIXLY_CORRECT is set).

       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.

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

       Report df bugs to bug-coreutils AT gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report df translation bugs to <http://translationproject.org/team/>

       Copyright (C) 2010 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version  3
       or later <http://gnu.org/licenses/gpl.html>.
       This  is  free  software:  you are free to change and redistribute it.  There is NO
       WARRANTY, to the extent permitted by law.

       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 coreutils 'df invocation'

       should give you access to the complete manual.

GNU coreutils 8.4                 March 2017                             DF(1)

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