N-day learning of a Linux command du

Use

Statistics file or directory occupies hard disk space size

Usage

du [OPTION] [FILE]
Du [OPTION]--files0-from=f

Common parameters

-A,--all
Count all files, not just directories

-B,--bytes
Bytes in units of statistics

-C,--total
Total output size

-D,--dereference-args
To the command line out of the link file, according to the link file point to the actual file size statistics, the default is the size of the linked file

--files0-from=f
Reads the list of files that need to be counted from the specified file F, with multiple filenames separated by a null character (nul-terminated file names). If "-", this means reading from the standard input stream.

-H,--human-readable
Human readable way to display

--si
As with the-h option, multiples are 1000 not 1024

-K
In units of K

-L,--count-links
Repeating hard Links

-M
In units of M

-L,--dereference
All linked files are counted in real file size

-P,--no-dereference
Link file statistics itself size, default

-0,--null
Output no newline display, NULL byte connection

-S,--separate-dirs
No subdirectories are included when statistics are available

-S,--summarize
Show total statistics for files

-X,--one-file-system
Ignore directories for different file systems

-X,--exclude-from=file
Read the list of files to be excluded from the file, the file name can contain the shell wildcard character

--exclude=pattern
Files that match the matching pattern are not counted

--max-depth=n
Statistics directory depth, n=0 similar to-s option, n=1 statistics to the first level subdirectory, and so on

--help
Output Help information

--version
Output version Information

Practice

1. Statistics of all files occupied space information (human readable mode display)

1[Email protected] assets]#du-Ah219M./game/game_asia_5_release_1.3.5_15.Zip320M./game/game_asia_5_release_1.4.0_21.Zip420M./game/game_asia_7_debug_1.4.0_20.Zip559M./Game6332K./hotgame/hotgame_asia_5_release_1.3.5.15_1.4.0. +.Zip7332K./Hotgame834M./source/asia/com.pokergame.dominoqq_release_1.3. 5_20171223183437.apk936M./source/asia/com.pokergame.dominoqq_release_1.4. 0_20180113181031.apkTen40M./source/asia/com.pokergame.susun_debug_1.4. 0_20180110113325.apk One109M./source/Asia A 0./source/Thailand -109M./Source -167M.

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2. Statistics empty character delimited list of files, link file shows true size in bytes
Generate a space-delimited list of files

1 Echo ' ntp.conf\0pip-9.0.1.tar.gz ' > t.log2 in/var/spool/mail/root3 [[Email protected] ~ ]# ll41 root root       : T.log

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Statistics file space consumption

1 du -b-d--files0-from=t.log21830    ntp.conf31197370 pip-9.0. 1. tar. gz

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3. No Line break display

1[Email protected] assets]#du-ah-0219M./game/game_asia_5_release_1.3.5_15.zip20m./game/game_asia_5_release_1.4.0_21.zip20m./game/game_asia_7_debug_1.4.0_20.zip59m./game332k./hotgame/hotgame_asia_5_release_1.3.5.15_1.4.0. +. zip332k./hotgame34m./source/asia/com.pokergame.dominoqq_release_1.3.5_20171223183437.apk36m./source/asia/com.pokergame.dominoqq_release_1.4.0_20180113181031.apk40m./source/asia/com.pokergame.susun_debug_1.4.0_20180110113325.apk109m./source/asia0./source/thailand109m./source167m.

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4. Statistics do not contain subdirectories

1[Email protected] assets]#du-ah-S219M./game/game_asia_5_release_1.3.5_15.Zip320M./game/game_asia_5_release_1.4.0_21.Zip420M./game/game_asia_7_debug_1.4.0_20.Zip559M./Game6332K./hotgame/hotgame_asia_5_release_1.3.5.15_1.4.0. +.Zip7332K./Hotgame834M./source/asia/com.pokergame.dominoqq_release_1.3. 5_20171223183437.apk936M./source/asia/com.pokergame.dominoqq_release_1.4. 0_20180113181031.apkTen40M./source/asia/com.pokergame.susun_debug_1.4. 0_20180110113325.apk One109M./source/Asia A 0./source/Thailand - 4.0K./Source - 0.

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5. Display the total statistics of the catalog

1 [[email protected] assets]# du -H-s 2 167M.

6. Do not count files that contain the game keyword

1 [email protected] assets]# ll2Total83DRWXRWX---.1Root vboxsf4096Jan -  One: theGame4DRWXRWX---.1Root vboxsf0Jan -  One: -Hotgame5DRWXRWX---.1Root vboxsf4096Jan -  One: GenevaSource6You have mailinch/var/spool/mail/Root7[Email protected] assets]#du-S--exclude='Game'8 111196  .9[Email protected] assets]#du-sTen 170708  . One[Email protected] assets]#du-S--exclude='Game' A 111196.

7. Statistic subdirectory space and sort in descending order

1 du -h-b--max-depth=1sort -2174782502   . 3 113516252   . /Source460929746    ./Game5336504  ./ Hotgame

Resources

"1" Linux Shell wildcard characters, metacharacters, escape character usage examples introduced
Http://www.cnblogs.com/chengmo/archive/2010/10/17/1853344.html
"2" Man du
"3" a Linux command per day: du command
Http://www.cnblogs.com/peida/archive/2012/12/10/2810755.html
"4" representing/quoting NUL on the command line
Https://unix.stackexchange.com/questions/160598/representing-quoting-nul-on-the-command-line

N-day learning of a Linux command du