Check if the CRC of the file is correct

Used to change the shell used when logging into the system

Change the root directory to the specified destination directory

Tool for updating user passwords in batches

Used to change the owner or group of a file or directory

Used to change the permissions of a file or directory

Check or set various services of the system

Used to change the group to which a file or directory belongs

Used to change the information displayed by the finger command

Modify the security context of an object (file)

Used to change file attributes

Modify the validity period of account and password