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 only symlinks that are listed on the command line

--files0-from=F
    summarize disk usage of the NUL-terminated file names specified in file F; If F is - then read names from standard input

-H  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

-m  like --block-size=1M

-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 file systems

-X, --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

--time
    show time of the last modification of any file in the directory, or any of its subdirectories

--time=WORD
    show time as WORD instead of modification time: atime, access, use, ctime or status

--time-style=STYLE
    show times using style STYLE: full-iso, long-iso, iso, +FORMAT FORMAT is interpreted like `date'

--help
    display this help and exit

--version
    output version information and exit

Display values are in units of the first available SIZE from --block-size, and the DU_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environment variables. Otherwise, units default to 1024 bytes (or 512 if POSIXLY_CORRECT is set).

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 du bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report du translation bugs to <http://translationproject.org/team/>

COPYRIGHT
Copyright © 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

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 coreutils 'du invocation'

should give you access to the complete manual.