RHEL Linux - Red Hat System Administration Practice Exam

Which of the following commands is used to change the owner of a file in Linux?

1. chown

2. chmod

3. chgrp

4. setfacl

The correct answer is: chown

The command used to change the owner of a file in Linux is indeed "chown." This command allows system administrators and users with the appropriate permissions to modify the ownership attributes of files and directories. When using "chown," you can specify a new owner for the file, and if necessary, you can also change the group associated with that file by providing both the new owner and the group in the command. For example, running `chown newuser:newgroup filename` would change the owner to 'newuser' and the group to 'newgroup.' The other commands listed serve different purposes: "chmod" is used to change the permissions of a file or directory, "chgrp" specifically changes the group ownership but does not alter the user ownership, and "setfacl" is used for managing Access Control Lists (ACLs), which provide a more granular level of permission management beyond standard file permissions. Understanding the roles of these commands in file management is essential for effective system administration in a Linux environment.