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DU(1)                    User Commands                    DU(1)





NAME
       du - estimate file space usage

SYNOPSIS
       du [OPTION]... [FILE]...
       du [OPTION]... --files0-from=F

DESCRIPTION
       Summarize  disk  usage  of  each  FILE,  recursively for
       directories.

       Mandatory arguments to long options  are  mandatory  for
       short options too.

       -a, --all
              write counts for all files, not just directories

       --apparent-size
              print  apparent  sizes,  rather  than disk usage;
              although the apparent size is usually smaller, it
              may  be  larger due to holes in (`sparse') files,
              internal fragmentation, indirect blocks, and  the
              like

       -B, --block-size=SIZE use SIZE-byte blocks

       -b, --bytes
              equivalent to `--apparent-size --block-size=1'

       -c, --total
              produce a grand total

       -D, --dereference-args
              dereference FILEs that are symbolic links

       --files0-from=F
              summarize  disk  usage of the NUL-terminated file
              names specified in file F

       -H     like --si, but also evokes a warning;  will  soon
              change  to  be  equivalent  to --dereference-args
              (-D)

       -h, --human-readable
              print sizes in human readable  format  (e.g.,  1K
              234M 2G)

       --si   like -h, but use powers of 1000 not 1024

       -k     like --block-size=1K

       -l, --count-links
              count sizes many times if hard linked

       -L, --dereference
              dereference all symbolic links

       -P, --no-dereference
              don't  follow  any  symbolic  links  (this is the
              default)

       -0, --null
              end each output line with 0 byte rather than new-
              line

       -S, --separate-dirs
              do not include size of subdirectories

       -s, --summarize
              display only a total for each argument

       -x, --one-file-system
              skip directories on different file systems

       -X FILE, --exclude-from=FILE
              Exclude files that match any pattern in FILE.

       --exclude=PATTERN Exclude files that match PATTERN.

       --max-depth=N
              print  the  total  for a directory (or file, with
              --all) only if it is N or fewer levels below  the
              command line argument;  --max-depth=0 is the same
              as --summarize

       --help display this help and exit

       --version
              output version information and exit

       SIZE may be (or may be an  integer  optionally  followed
       by)  one  of following: kB 1000, K 1024, MB 1000*1000, M
       1024*1024, and so on for G, T, P, E, Z, Y.

PATTERNS
       PATTERN is a shell pattern (not a  regular  expression).
       The  pattern  ?   matches  any  one character, whereas *
       matches any string (composed of zero,  one  or  multiple
       characters).   For  example,  *.o  will  match any files
       whose names end in .o.  Therefore, the command

              du --exclude='*.o'

       will skip all files  and  subdirectories  ending  in  .o
       (including the file .o itself).

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

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

COPYRIGHT
       Copyright (C) 2005 Free Software Foundation, Inc.
       This is free software; see the source for copying condi-
       tions.  There is NO warranty; not even for MERCHANTABIL-
       ITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO
       The full documentation for du is maintained as a Texinfo
       manual.   If  the  info  and  du  programs  are properly
       installed at your site, the command

              info du

       should give you access to the complete manual.



du 5.3.0                  January 2005                    DU(1)