What command is used to change the ownership of a file?

The command used to change the ownership of a file is 'chown'. This command allows you to specify a new owner for a file or directory, and it can also change the group associated with that file if needed. The basic syntax is 'chown [new_owner]:[new_group] [filename]', which provides flexibility in managing file permissions and ownership.

The 'chmod' command, on the other hand, is used for changing the file permissions but does not alter its ownership. 'chgrp' is specifically for changing the group ownership of a file, not the user ownership, while 'mv' is primarily used for moving or renaming files and directories. Each of these commands serves distinct purposes within file management in Linux, but when it comes to ownership, 'chown' is the command specifically designed for that task.