Linux chown command

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Linux chown (full English spelling:change owner）is a command used to set the file owner and the file's associated group.

Linux/Unix is a multi-user, multi-tasking operating system, with all files having owners. The 'chown' command is used to change the owner of a specified file to a specified user or group; the user can be a username or user ID, and the group can be a group name or group ID. The file list to change permissions is separated by spaces, and wildcard characters are supported. .

The 'chown' command requires superuser root privileges to execute this command.

Only superusers and the file owners belonging to the group can change the file's associated group. Non-superusers who need to set an associated group may need to use chgrp Command.

Permissions : root

Syntax

chown　[-cfhvR]　[--help]　[--version]　user[:group]　file...

Parameters :

• user : New file owner's user ID

• group : New file owner's user group (group)

• -c : Display information about the parts changed

• -f : Ignore error information

• -h : Repair symbolic links

• -v : Display detailed processing information

• -R : Process all files in the specified directory and its subdirectories

• --help : Display help information

• --version : Display version

Online Examples

Take /var/run/Owner of httpd.pid set to root:

chown　root　/var/run/httpd.pid

Set the owner of the file file1Owner of .txt set to w3codebox, the user of the group w3codeboxgroup :

chown　w3codebox:w3codeboxgroup　file1.txt

Set the owner of all files and subdirectories under the current directory to w3codebox, the user of the group w3codeboxgroup:

chown　-R　w3codebox:w3codeboxgroup　*

Take /home/w3The associated group of codebox is set to 512 Group ID associated, do not change the owner:

chown　:512　/home/w3codebox

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