Command name: Chown
English: Change file ownership
Command path:/bin/chown
Syntax: chown [user] [file or directory]
Function Description: Change the owner of the file or directory
Example: Chown Shenchao Fengjie
Change the owner of the file Fengjie to Shenchao
Command name: CHGRP
English: Change file group ownership
Command path:/BIN/CHGRP
Syntax: chgrp [user] [file or directory]
Function Description: Change the owning group of the file or directory
Example: Chown lampbrother Fengjie
Change file Fengjie belongs to group Lampbrother
Command name: umask
English: The user file-creation mark
Command path: Shell built-in command
Syntax: umask [-S]
-S Displays the default permissions for new files in rwx form
Function Description: Display. Set default permissions for files
Example: Umask-s
Linux Common commands-rights management commands-other rights management commands