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 con-
       taining 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.  This version of df cannot show
       the space available on unmounted file systems, because on most kinds of systems doing so requires very nonportable  inti-
       mate 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  BLOCK-
       SIZE environment 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, ... (powers 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://translationpro-
       ject.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 command

              info coreutils 'df invocation'

       should give you access to the complete manual.



GNU coreutils 8.22                                          June 2016                                                      DF(1)