Summary of Find command usage under Linux

Find is a command that uses a higher frequency. It is often used in a system-specific directory to find files that have some kind of feature.

Format of the Find command: Find [-path ...]-options [-print-exec-ok]

Path: The directory path to find.
~ Represents the $home directory
. Represents the current directory
/Represents the root directory

Print: Indicates that the result is output to standard output.

EXEC: Executes the shell command given by the parameter to the matching file.
The form is command {} \;, note {} and \; There is a space between

OK: As with the EXEC function,
The difference is that a prompt is given before the command is executed to let the user confirm whether the

Options are commonly used with the following option:
-name: Search by name
-perm: Install permissions Lookup
-prune: No longer found under the currently specified directory
-user: File owner to find
-group: File belongs to group to find
-nogroup: Finding files with no valid owning group
-nouser: Finding files with no valid owner
-type: Search by file type

Here are some simple examples to illustrate the general use of the next find:

1. Search by name

In the current directory and subdirectories, find the TXT file at the beginning of the capital letter
$ find. -name ' [A-z]*.txt '-print

In/etc and its subdirectories, look for files at the beginning of host
$ Find/etc-name ' host* '-print

In the $home directory and its subdirectories, find all Files
$ find ~-name ' * '-print

In the current directory and subdirectories, find the TXT file that is not the beginning of the out
$ find. -name "out*"-prune-o-name "*.txt"-print

2. Search by directory

Search for txt files in subdirectories other than AA in the current directory
$ find. -path "./aa"-prune-o-name "*.txt"-print

Find txt files in the current directory and subdirectories other than AA and BB
$ find. \ (-path "./aa"-o-path "./bb" \)-prune-o-name "*.txt"-print

In the current directory, no longer subdirectories, find txt files
$ find. ! -name "."-type d-prune-o-type f-name "*.txt"-print

3. Search by permissions

In the current directory and subdirectories, look for the master with read and write execution, and other files with reading Execute permission
$ find. -perm 755-print

4. Search by Type

In the current directory and subdirectories, locate the symbolic link file
$ find. -type L-print

5. According to the owner and genus Group

Find files that belong to www
$ find/-user Www-type F-print

Find files that belong to the main deleted
$ find/-nouser-type F-print

Find files belonging to the group MySQL
$ find/-group Mysql-type F-print

Find files deleted by user group
$ find/-nogroup-type F-print

6. Search by Time

Find files that have been changed in 2 days
$ find. -mtime-2-type F-print

Find files that have been changed 2 days ago
$ find. -mtime +2-type F-print

Find files that are accessed in a day
$ find. -atime-1-type F-print

Find files that were accessed a day ago
$ find. -atime +1-type F-print

Find files that are changed in the day
$ find. -ctime-1-type F-print

Find a day ago state changed file
$ find. -ctime +1-type F-print

Find files with status changed 10 minutes ago
$ find. -cmin +10-type F-print

7, according to the old and new documents

Find a new file than Aa.txt
$ find. -newer "Aa.txt"-type f-print

Look for older files than Aa.txt
$ find. ! -newer "Aa.txt"-type f-print

Find newer than aa.txt, older than bb.txt files
$ find. -newer ' Aa.txt '! -newer ' Bb.txt '-type f-print

8. Search by size

Find files that are over 1M
$ find/-size +1m-type F-print

Find files that are equal to 6 bytes
$ find. -size 6c-print

Find files that are less than 32k
$ find. -size-32k-print

9. Execution of Orders

Find Del.txt and delete, prompt confirmation before deleting
$ find. -name ' Del.txt '-ok rm {} \;

Find Aa.txt and back up as Aa.txt.bak
$ find. -name ' Aa.txt '-exec cp {} {}.bak \;

Summary of Find command usage under Linux