How can you change the ownership of a file?

Changing the ownership of a file is accomplished using the chown command in Linux. This command allows you to specify both the new owner and optionally the new group for the file. The syntax typically involves providing the new owner's username, the file name, and, if needed, the group. For example, chown username:groupname filename changes the file's ownership and its group.

The chmod command is used to change the permissions of a file, not its ownership. The chgrp command is specifically for changing the group ownership of a file but does not alter the user ownership. Lastly, the mv command is utilized for moving or renaming files and does not have any role in changing ownership. Thus, the chown command is the correct choice for altering file ownership in a Linux environment.