When you use Ubuntu on a daily basis, you probably know there is something there called “The Terminal”. Ubuntu Desktop users should know the gnome-terminal in particular. If you are Ubuntu user, but have no idea what I’m talking about, check Applications -> Accessories -> Terminal. Keep in mind that within this terminal, the ease of destructing stuff is enormous!
When working inside your terminal, a feature that quickly becomes inevitable usable, is the bash completion. All it does is completing your commands in an easy way, speeding up your productivity enormous. Beside this speedup, perhaps it’s most valuable function is that it can help typing. And by saying it can help, I mean that the terminal makes your sentences complete! So it minimizes type errors, and long command line arguments become more “fun” using!