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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 contain-
       ing  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
              scale sizes by SIZE before printing them.   E.g.,  '-BM'  prints
              sizes in units of 1,048,576 bytes.  See SIZE format below.

       -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)

       --output[=FIELD_LIST]
              use the output format defined by FIELD_LIST, or print all fields
              if FIELD_LIST is omitted.

       -P, --portability
              use the POSIX output format

       --sync invoke sync before getting usage info

       --total
              elide all entries insignificant to available space, and  produce
              a grand total

       -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

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

       SIZE is an integer and optional unit (example:  10M  is  10*1024*1024).
       Units  are K, M, G, T, P, E, Z, Y (powers of 1024) or KB, MB, ... (pow-
       ers of 1000).

       FIELD_LIST is a comma-separated list of columns to be included.   Valid
       field  names  are:  'source',  'fstype',  'itotal',  'iused', 'iavail',
       'ipcent', 'size', 'used',  'avail',  'pcent'  and  'target'  (see  info
       page).

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

REPORTING BUGS
       Report df bugs to bug-coreutils@gnu.org
       GNU coreutils home page: 
       General help using GNU software: 
       Report df translation bugs to 

COPYRIGHT
       Copyright  (C) 2013 Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later .
       This is free software: you are free  to  change  and  redistribute  it.
       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  com-
       mand

              info coreutils 'df invocation'

       should give you access to the complete manual.



GNU coreutils 8.21                March 2016                             DF(1)



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