du(1)

     NAME
          du - summarize disk usage

     SYNOPSIS
          du [-abcklsxDLS] [--all] [--total] [--count-links]
          [--summarize] [--bytes] [--kilobytes] [--one-file-system]
          [--separate-dirs] [--dereference] [--dereference-args]
          [--help] [--version] [filename...]

     DESCRIPTION
          This documentation is no longer being maintained and may be
          inaccurate or incomplete.  The Texinfo documentation is now
          the authoritative source.

          This manual page documents the GNU version of du.  du
          displays the amount of disk space used by each argument and
          for each subdirectory of directory arguments.  The space is
          measured in 1K blocks by default, unless the environment
          variable POSIXLY_CORRECT is set, in which case 512-byte
          blocks are used.

        OPTIONS
          -a, --all
               Display counts for all files, not just directories.

          -b, --bytes
               Print sizes in bytes.

          -c, --total
               Write a grand total of all of the arguments after all
               arguments have been processed.  This can be used to
               find out the disk usage of a directory, with some files
               excluded.

          -k, --kilobytes
               Print sizes in kilobytes.  This overrides the
               environment variable POSIXLY_CORRECT.

          -l, --count-links
               Count the size of all files, even if they have appeared
               already in another hard link.

          -s, --summarize
               Display only a total for each argument.

          -x, --one-file-system
               Skip directories that are on different filesystems from
               the one that the argument being processed is on.

          -D, --dereference-args
               Dereference symbolic links that are command line
               arguments.  Does not affect other symbolic links.  This
               is helpful for finding out the disk usage of
               directories like /usr/tmp where they are symbolic
               links.

          -L, --dereference
               Dereference symbolic links (show the disk space used by
               the file or directory that the link points to instead
               of the space used by the link).

          -S, --separate-dirs
               Count the size of each directory separately, not
               including the sizes of subdirectories.

          --help
               Print a usage message on standard output and exit
               successfully.

          --version
               Print version information on standard output then exit
               successfully.

     BUGS
          On BSD systems, du reports sizes that are half the correct
          values for files that are NFS-mounted from HP-UX systems.
          On HP-UX systems, it reports sizes that are twice the
          correct values for files that are NFS-mounted from BSD
          systems.  This is due to a flaw in HP-UX; it also affects
          the HP-UX du program.