TestOut Linux Pro Practice Test 2026 – All-in-One Guide to Master Your Certification!

The command used to change the owner of a file in Linux is chown. This command specifically modifies the ownership attributes of the specified file or directory, allowing a user with the appropriate permissions to reassign ownership to another user. The syntax of the command typically follows the format `chown new_owner file`, where "new_owner" is the username or user ID of the new owner and "file" is the name of the file or directory whose ownership is being changed.

Chown is essential for managing permissions in a multi-user environment, ensuring that files are owned and accessed by the appropriate users. It is particularly useful in scenarios where files may need to be shared or reassigned as users' roles or needs change.

The other options serve different purposes: chmod is used for changing the permissions of a file, useradd is a command for creating a new user account, and setowner is not a valid command in the context of Linux file management.