Linux du command

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Linux du command (full name in English: disk usage) is used to display the size of directories or files.

du will display the disk space occupied by the specified directory or file.

Syntax

du [-abcDhHklmsSx][-L <symbolic link>][-X <file>][--block-size][--exclude=<directory or file>][--max-depth=<directory level>][--help][--version][directory or file]

Parameter Description:

• -a or-all Displays the size of individual files in the directory.
• -b or-bytes When displaying the size of directories or files, it is displayed in bytes.
• -c or--total In addition to displaying the size of individual directories or files, it also displays the total size of all directories or files.
• -D or--dereference-args Displays the size of the source file specified by the symbolic link.
• -h or--human-readable Increase the readability of information with K, M, G units.
• -H or--si With-h parameters are the same, but K, M, G are1000 as the conversion unit.
• -k or--kilobytes With1024 bytes as the unit.
• -l or--count-links Recalculates the size of files linked by hardware.
• -L<symbolic link> or--Dereference<symbolic link> Displays the size of the source file specified in the options.
• -m or--megabytes With1MB as unit.
• -s or--summarize Only display the total.
• -S or--separate-dirs When displaying the size of individual directories, do not include the size of their subdirectories.
• -x or--one-file-xystem Take the file system at the beginning of processing as the standard, and ignore other different file system directories if encountered.
• -X<file> or--exclude-from=<file> In the specified directory or file <file>.
• --exclude=<directory or file> Skip the specified directory or file.
• --max-depth=<directory levels> Ignore directories beyond the specified level.
• --help Display help.
• --version Display version information.

Online Examples

Display the space occupied by directories or files:

# du
608     ./test6
308     ./test4
4       ./scf/lib
4       ./scf/service/deploy/product
4       ./scf/service/deploy/info
12      ./scf/service/deploy
16      ./scf/service
4       ./scf/doc
4       ./scf/bin
32      ./scf
8       ./test3
1288    .

Only display the directory size of the subdirectories under the current directory and the total size of the current directory, the bottom-most1288For the total size of the current directory

Display the space occupied by the specified file

# du log2012.log 
300     log2012.log

Display the space occupied by the test directory in a convenient format:

# du -h test
608K    test/test6
308K    test/test4
4.0K    test/scf/lib
4.0K    test/scf/service/deploy/product
4.0K    test/scf/service/deploy/info
12K     test/scf/service/deploy
16K     test/scf/service
4.0K    test/scf/doc
4.0K    test/scf/bin
32K     test/scf
8.0K    test/test3
1.3M    test

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