Unix utility SED provides an effective and versatile way of deleting one or more lines from a designated file to match the needs of the user. This Unix command is used for command line processing.

The Disks app takes over some more challenging commands, such as fsck, mount, parted, chown, and dd. This app is a handy GUI that also prevents you from having to edit the fstab configuration file ...

The first command we’ll examine in this post is a very unusual awk command that systematically removes every line in the file that is encountered more than once. It leaves the first instance of the ...