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 Linux fold takes lines of text and breaks them into chunks based on the arguments that you provide. With no arguments, fold will break lines at 80 characters. The first example below uses a single ...

It's easy to add a few lines of text to files on Linux, but there are tools that make it easier to add many lines. There are a number of ways to add text to files on Linux systems without having to ...