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df(1) - df, df - report filesystem disk space usage - man 1 df

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DF(1)                                 FSF                                DF(1)



NAME
       df - report filesystem disk space usage

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

DESCRIPTION
       This  manual  page  documents  the  GNU version(1,3,5) of df.  df displays the
       amount of disk space available on the filesystem containing  each  file(1,n)
       name  argument.   If  no file(1,n) name is given, the space available on all
       currently mounted filesystems is shown.  Disk  space  is  shown  in(1,8)  1K
       blocks  by  default, unless the environment variable POSIXLY_CORRECT is
       set(7,n,1 builtins), in(1,8) which case 512-byte blocks are used.

       If an argument is the absolute file(1,n) name of a disk device node contain-
       ing a mounted filesystem, df shows the space available on that filesys-
       tem rather than on the filesystem containing the device node (which  is
       always  the root filesystem).  This version(1,3,5) 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(1,8) 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
              do not invoke sync(1,2,8) before getting usage info(1,5,n) (default)

       -P, --portability
              use the POSIX output format

       --sync invoke sync(1,2,8) before getting usage info(1,5,n)

       -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(3,n,1 builtins)

       --version
              output version(1,3,5) information and exit(3,n,1 builtins)

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

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

COPYRIGHT
       Copyright  2001 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  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(1,5,n) and df programs are properly installed at your site, the com-
       mand

              info(1,5,n) df

       should give you access(2,5) to the complete manual.



df (fileutils) 4.1                April 2001                             DF(1)

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