# df(1)

    NAME
         df - report on free disk space

    SYNOPSIS
         df [-ikP] [-t type] [file ...]

    DESCRIPTION
         Df lists the amount of free space on the currently  mounted  devices  (no
         arguments),  or the devices given as arguments.  If the argument is not a
         device then the device it resides on is listed.

    OPTIONS
         Without options, df will give a listing like this:

         Filesystem    1k-Blocks     free     used    %  FUsed%  Mounted on
         /dev/c0d0p1s0      1440      635      805  56%    26%   /
         /dev/c0d0p1s1     32768    32390      378   2%     1%   /tmp
         /dev/c0d0p1s2    784657   517809   266848  35%    29%   /usr

         The -i option shifts the focus to the files:

         Filesystem        Files     free     used    %  BUsed%  Mounted on
         /dev/c0d0p1s0      1024      759      265  26%    56%   /
         /dev/c0d0p1s1      5472     5468        4   1%     2%   /tmp
         /dev/c0d0p1s2     65535    46734    18801  29%    35%   /usr

         Option -P makes df use POSIX defined output in 512 byte units:

         Filesystem     512-blocks    Used  Available  Capacity  Mounted on
         /dev/c0d0p1s0      2880      1628     1252       57%    /
         /dev/c0d0p1s1     65536       756    64780        2%    /tmp
         /dev/c0d0p1s2   1569314    533748  1035566       35%    /usr

         With -k 1024 byte units would be used.

         The -t option limits df's output to file systems of the given type.

    FILES

         /etc/mtab      List of mounted file systems.

    SEE ALSO
         du(1), fstab(5).

    BUGS
         Default output should also be in 512 byte units says POSIX.

    AUTHOR
         Kees J. Bot (kjb@cs.vu.nl)