DU(1)				User Commands				DU(1)



NAME
       du - estimate file space usage

SYNOPSIS
       du [OPTION]... [FILE]...

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

       -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 newline

       -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 filesystems

       -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	 fol-
       lowing:	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 .

COPYRIGHT
       Copyright (C) 2004 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 PARTICU-
       LAR 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 com-
       mand

	      info coreutils du

       should give you access to the complete manual.



du (coreutils) 5.2.1		 August 2006				DU(1)

UNIX/Linux commands referenced on this page:

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2. write
3. size
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5. display
6. as
7. free
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