You want to redirect the output of the ls command to the ls-output file which already exists. The output should be appended to the file; it should not overwrite the existing content. Which command accomplishes this task?
You have a /tmp/data directory containing the files .file, file1, and file2. You want to delete the directory and its content. In a terminal window, which command accomplishes this?
When you connect to an ssh server with your ssh client, the public key of the server is compared to the keys stored in a file on the client computer. Which file is this?
As system administrator root, you use the lpoptions command to change printer options, such as the page size. To which file are these options saved?
You want to delete a certain print job from the laser print queue. Using the lpq command, you determined the job number of this job as 1234. Which command lets you delete that job?
From command mode in vi, what do you have to do to enter text?
