That n is the reason that the echo command can also be used to add a linefeed to the end of a file that, for some reason, lacks one. Here’s a file that lacks a linefeed followed by the command that ...

The shell does far more than run commands. Here’s how Bash expands your input behind the scenes so you can write cleaner, ...

There are quite a few ways to extract words and substrings from lines of text on a Linux system, replace them with other strings, select delimiters, and even get rid of white space at the beginning ...