Deleting directories and files is one of the most basic, but important functions in any operating system. In Linux, if you have a windowed environment running, you can locate and delete files using a ...

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 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 ...