du – estimate file space usage
du [OPTION]… [FILE]…
du [OPTION]… –files0-from=F
Summarize disk usage of each FILE, recursively for directories.
Mandatory arguments to long options are mandatory for shortoptions too.
- -a, –all
- write counts for all files, not just directories
- 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 thelike
- -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
- summarize disk usage of the NUL-terminated file names specified in file F
- 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)
- like -h, but use powers of 1000 not 1024
- like –block-size=1K
- -l, –count-links
- count sizes many times if hard linked
- 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 FILE, –exclude-from=FILE
- Exclude files that match any pattern in FILE.
- Exclude files that match PATTERN.
- 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
- show time of the last modification of any file in the directory, or any of its subdirectories
- show time as WORD instead of modification time: atime, access, use, ctime or status
- show times using style STYLE: full-iso, long-iso, iso, +FORMAT FORMAT is interpreted like ‘date’
- display this help and exit
- 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.
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).
Written by Torbjorn Granlund, David MacKenzie, Paul Eggert, and Jim Meyering.
Report bugs to <email@example.com>.
Copyright © 2008 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.
The full documentation for du is maintained as a Texinfo manual. If the infoand du programs are properly installed at your site, the command
- info du
should give you access to the completemanual.