3. Ownership Permissions
In addition to modifying permissions on files, you can also modify the group and user ownership of the file as well.
Modify user ownership
$ sudo chown patty myfile
This command will set the owner of myfile to patty.
Modify group ownership
$ sudo chgrp whales myfile
This command will set the group of myfile to whales.
Modify both user and group ownership at the same time
If you add a colon and groupname after the user you can set both the user and group at the same time.
$ sudo chown patty:whales myfile
Modify the group and user of some test files. Afterwards take a look at the permissions with ls -l.
What command do you use to change user ownership?