Shulou(Shulou.com)06/01 Report--

Find: find files that match the specified attributes in real time by traversing the specified target directory

Advantage: exact match for search

Cons: slightly slower

Usage:

Find [OPTION] [search path] [search condition] [processing Action]

Find path: default to current path

Search criteria: default to all files under the specified path

Processing action: it is displayed on the screen by default

Search criteria:

-name: distinguishes the case of a file when searching, and supports glob

*, [], [^]

-iname: file case insensitive when looking for it

-user USERNAME: search according to the file owner

-group USERNAME: search by file group

-uid UID: find based on the specified UID

When the original user is deleted, the owner group of the file he created before becomes the uig and gid of his previous account.

-gid GID: find based on the specified GID

-nouser: find files without owners

-nogroup: find files that do not belong to a group

-type TYPE: find by file type

-size TYPE: find based on file size

-atime [+ | -] #: files visited in recent days

-mtime[ + | -] #: files that have been modified in recent days

-ctime[ + | -] #: files that have changed in recent days

-amin[ + | -] #: files accessed in the last few minutes

-Mmin [+ | -] #: files that have been modified in recent minutes

-cmin [+ | -] #: files that have changed in the last few minutes

-perm [+ | -] MODE: search based on permissions

-maxdepth: find the most depth, for example:-maxdepth 1 means only look under the current directory, but not the directory under the current directory.

-mindepth: find the minimum depth

Combination of search criteria:

-a: the same as when there are two operations without this parameter

-o: or

!!-not: not

Find by file type

-type TYPE:

F: ordinary files

D: catalog file

L: symbolic link file

B: block equipment

C: character settings file

P: command name pipe

S: represents a socket file

Find based on file size

-size TYPE:

Commonly used unit: KTHERMAL MMAG

+; greater than

-; less than

Nothing is expressed as an exact size.

# UNIT: indicates #-1 < x

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