You want to install the xyz-software-1.2.3-5.i586.rpm package, but only if a previous version is already installed. Which command will do this?
Which file can be used to send a message to users logging in on a text console?
What is the correct syntax for mounting the second partition of the first SCSI hard disk?
Using the rsync command, you want to mirror the directories, including any hidden files and directories within /home (not the /home directory itself) to the /backup directory. 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?
From command mode in vi, what do you have to do to enter text?
