Enter the entire command line to complete the following task: Assume you are NOT in your homedirectory. You want to change permissions of letc/abc.txt What would you type at a command line to change permissions to give the owner read, write and execute permissions, group no permissions, and others no permissions. HINT: You are outside your homedirectory, so you need root level access. NOTE: Type your answer exactly as you would at a command line: Do not add extra spaces, no quotations, no $ symbols, etc