sed, which stands for 'stream editor,' offers many options for selecting content from a command or a file and changing it as requested.

Because /proc/meminfo behaves like a file, we can use common utilities like cat and less ... or the kill command, to ...

It is no secret that to be a true Linux power user you have to deal with the command line. Many people actually prefer to use the command line. However, the shell — the program that provides ...