We’ve always been a fans of wargames. Not the movie (well, also the movie) but I’m referring to hacking wargames. There are several formats but usually you have access to an initial shell account ...

Git is an enormous program, with nearly 200 sub-commands and countless options among them. You probably only use a handful, those reliable stalwarts like init, add, commit, and branch. But some ...

The tab completion feature saves time and prevents errors by auto-completing commands and filenames. Linux shells like bash and zsh offer powerful tab completion features that handle subcommands and ...