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du - estimate file space usage du
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.
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 info
programs are properly installed at your site, the command
- info du
should give you access to the completemanual.
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