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.  This
       version	of  df	cannot show the space available on unmounted file sys-
       tems, because on most kinds of systems  doing  so  requires  very  non-
       portable 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

       --direct
	      show statistics for a file instead of mount point

       --total
	      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

       --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

       -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', 'file'  and	'target'  (see
       info page).

       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>
       Report df translation bugs to <http://translationproject.org/team/>

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

COPYRIGHT
       Copyright (C) 2013 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.

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 8.22		 February 2016				 DF(1)