Find command details

Parameters of the find command;

Pathname: directory path searched by the find command. For example, use "." To represent the current directory, and use "/" to represent the root directory of the system.

-Print: The find command outputs matching files to the standard output.

-Exec: The find command executes the shell command given by this parameter on the matching file. The corresponding command is in the form of 'command' {}\;. Note the space between {} And.

-OK: The Role of-exec is the same, but the shell command given by this parameter is executed in a safer mode. A prompt is displayed before each command is executed, let the user determine whether to execute.

#-Print: output the searched files to the standard output

#-Exec command {}\; -- execute the command operation on the retrieved file. There is a space between {} And \;

#-OK is the same as-exec, but you need to consult the user before the operation

Example: find.-Name. SVN | xargs Rm-RF

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-Name filename # search for a file named filename

-Perm # search by execution permission

-User Username # search by file owner

-Group groupname # search by group

-Mtime-N + N # Find the file based on the file change time.-N indicates that the file is less than N days, and + N indicates that the file is earlier than N days.

-Atime-N + N # query gin by file access time: 0px ">

-Ctime-N + N # Find the file based on the file creation time.-N indicates that the file is less than N days, and + N indicates that the file is earlier than N days.

-Nogroup # Check for files with no valid group, that is, the file group does not exist in/etc/groups.

-Nouser # Check files with no valid owner, that is, the file owner is not stored in/etc/passwd.

-Newer F1! F2 file search,-N refers to N days or less, + N refers to N days ago

-Ctime-N + N # Find the file based on the file creation time.-N indicates that the file is less than N days, and + N indicates that the file is earlier than N days.

-Nogroup # Check for files with no valid group, that is, the file group does not exist in/etc/groups.

-Nouser # Check files with no valid owner, that is, the file owner is not stored in/etc/passwd.

-Newer F1! F2 # Query files whose modification time is earlier than F1 but earlier than F2

-Type B/D/C/P/L/F # Check Block devices, directories, character devices, pipelines, symbolic links, and common files.

-Size N [c] # query objects with a length of N [or n Bytes]

-Depth # search for the local directory before entering the subdirectory

-Fstype # Query files whose change time is newer than F1 but earlier than F2

-Type B/D/C/P/L/F # Check Block devices, directories, character devices, pipelines, symbolic links, and common files.

-Size N [c] # query objects with a length of N [or n Bytes]

-Depth # search for the local directory before entering the subdirectory

-Fstype # Query files in a certain type of file system. These file system types can be found in/etc/fstab.

-Mount # The mount point of the file system is not crossed during file query.

-Follow # If a symbolic link file is encountered, the file indicated by the link will be tracked.

-Cpio %; # Query files in a certain type of file system. These file system types can be found in/etc/fstab.

-Mount # The mount point of the file system is not crossed during file query.

-Follow # If a symbolic link file is encountered, the file indicated by the link will be tracked.

-Cpio # Use the cpio command to back up the matching files to the tape device.

-Prune # ignore a directory

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$ Find ~ -Name "*. txt"-print example: Check the. txt file and display it in home ‑.

$ Find.-Name "*. txt"-print

$ Find.-Name "[A-Z] *"-print # Query files starting with an uppercase letter

$ Find/etc-name "Host *"-print # Query files starting with host

$ Find.-Name "commana-z00000000a-z000000000-9000000000-90000.txt"-print # query TXT files starting with two lower-case letters and two numbers

$ Find.-Perm 755-print

$ Find.-Perm-007-exec LS-l {}\; # check whether all files that can be read and written by users are the same as-Perm 777

$ Find.-type D-print

$ Find .! -Type D-print

$ Find.-type L-print

$ Find.-size + 000000c-print # Query files with a length greater than 1 MB

$ Find.-size 100c-print # Query files with a length of C

$ Find.-size + 10-print # Query 10 files whose length exceeds the expiration date (1 file = 512 bytes)

$ CD/

$ Find etc home apps-depth-print | cpio-ivcsc65536-o/dev/rmt0

$ Find/etc-name "passwd *"-exec grep "cnscn" {}\; # check whether a cnscn user exists

$ Find.-Name "Yao *" | xargs File

$ Find.-Name "Yao *" | xargs echo "">/tmp/CORE. Log

$ Find.-Name "Yao *" | xargs chmod o-w

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Find-name CMDL * search for files starting with CMDL in the current directory

Find-name extension L * fprint file searches for files starting with extension l in the current directory, and outputs the results to the file.

Find-name AP *-o-name may * search for files starting with AP or may

Find/mnt-name tom.txt-FTYPE vfat find the file named tom.txt and the file system type is vfat under/mnt

Find/mnt-name t.txt! -FTYPE vfat: Find the file named tom.txt under/mntand the file system type is not vfat.

Find/tmp-name wa *-type l search for files starting with Wa and whose type is symbolic link under/tmp

Find/home-mtime-2 check files modified in the last two days under/home

Find/home-atime-1. Check the files that have been accessed within one day.

Find/home-mmin + 60 check files modified 60 minutes ago under/home

Find/home-Amin + 30 check files that have been accessed in the last 30 minutes

Find/home-newer tmp.txt check for files or directories that are earlier than tmp.txt in/home.

Find/home-anewer tmp.txt check the files or directories with a time closer to tmp.txt under/home.

Find/home-used-2 list the files or directories that have been accessed within two days after the files or directories have been modified.

Find/home-user cnscn list the files or directories belonging to the user's cnscn in the/Home Directory

Find/home-UID + 501 list files or directories with user IDs greater than 501 in the/Home Directory

Find/home-group cnscn list/home files or directories in which the group is cnscn

Find/home-gid 501 list/home files or directories with group ID 501

Find/home-nouser: list files or directories that do not belong to local users in/home.

Find/home-nogroup list files or directories in/home that do not belong to the Local Group

Find/home-name tmp.txt-maxdepth 4 list/The tmp.txt in homecan be found at a maximum of three layers.

Find/home-name tmp.txt-mindepth 3 query from Layer 1

Find/home-empty

Find/home-size + 512 K Query files larger than K

Find/home-size-512 K to query files smaller than K

Find/home-links + 2 check files or directories with hard connections greater than 2

Find/home-Perm 0700 check the file or directory with the permission of 700

Find/tmp-name tmp.txt-exec cat {}\;

Find/tmp-name tmp.txt-OK RM {}\;

Find/-Amin-10 # search for files accessed in the last 10 minutes in the system

Find/-atime-2 # search for files accessed in the last 48 hours in the system

Find/-empty # search for files or folders that are empty in the system

Find/-group cat # Find the groupcat file in the system

Find/-mmin-5 # search for the files modified in the last 5 minutes in the system

Find/-mtime-1 # search for files modified in the last 24 hours in the system

Find/-nouser # search for files belonging to the void user in the system

Find/-user Fred # search for files belonging to the user Fred IN THE SYSTEM

Query all common files in the current directory

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# Find.-Type F-exec LS-l {}\;

-RW-r-1 Root 34928 2003-02-25./CONF/httpd. conf

-RW-r-1 Root 12959 2003-02-25./CONF/magic

-RW-r-1 Root 180 2003-02-25./CONF. d/readme

Query all common files in the current directory and use the LS-l command in the-e x e c option to list them.

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In the/l o g s directory, find the files whose changes were earlier than 5 days and delete them:

$ Find logs-type F-mtime + 5-Exec-OK RM {}\;

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Query the files modified on the current day

[[Email protected] class] # Find./-mtime-1-type F-exec LS-l {}\;