The Linux command du

The du command is one of the most commonly used commands for system operations and is designed to count file directory occupancy

-a displays all file and directory sizes, recursive display

--apparent-size shows the size of files and directories rather than disk usage.

-B,--block-size= ' size ' shows the number of blocks, and the size in quotation marks represents the block size of the system.

-B Displays the viewing object size in Byte, equivalent to--apparent-size--block-size=1

-C meter Total and total surface totals

-D calculation does not include linked files

-H Similar to--SI calculates the disk footprint of files and directories in 1000 for compute units

-H Human readable mode (K,M,G)

--SI replaces 1024 conversion units with 1000

-K similar to--block-size=1k specifies that the block size is 1k and the file directory size is computed.

-L,--count-links multiple calculations if a hard link is included

-m similar to--block-size=1m specifies that the block size is 1M and the file directory size is computed.

-L,--dereference and-D parameters are different, ignoring all linked objects (files, directories)

-p,--no-dereference default parameters, not

-0 Replace line breaks with 0 bytes

-S,--separate-dirs does not include the size of subdirectories

-S,--summarize only displays the total size of each object at the current directory level

-X,--one-file-system skips those directories on different file systems.

-x file,--exclude-from=file does not contain matching objects, where file is the user-specified object

--exclude=pattern

--max-depth= displays the depth--max-depth=0 of the directory level equivalent to--summarize

--time display the last modification time of a file or subdirectory in a directory

--time=word with keyword Word display time, contains: Atime,access,use,ctime,status

--time-style=style Adjust display time format, format contains Full-iso, Long-iso, ISO, +format (this format is from the date command)

--help Help

--version Version Information

SIZE contains KB, K, MB 1000*1000, M 1024*1024, and G, T, P, E, Z, y, etc.

Pattern is a shell expression, non-regular expression

Common parameters:

Displays all catalog files in human-readable form, which recursively displays all objects

Du-ah

Do not recursively display subordinate directories, only the current level of files and the total size of the directory

Du-sh

Displays the size in the specified units

Du-b | Du-k | Du-m

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The Linux command du