Terminal App Macbook. Another solution, which is best reserved for and intended for use by advanced mac users only who are comfortable with the command line and have a deeper knowledge of mac os x, is the thorough manual removal of an app and all associated components, and that’s what we’ll cover here. However, many mac users probably think that only people who have graduated from computer science can write something or use terminal app.

Otherwise, you can use the keyboard shortcut command + space. And it is free to use. If lowering the opacity of hidden apps appeals to you, you might like this terminal command even better:
However, you can install dmitry rodionov’s mas utility to add this functionality to your command line.
Terminator is an open source terminal app built with a focus on arranging terminals in grids. Terminal is a useful tool for executing commands on a mac. If you're ever sent a file that won't open on your mac, perhaps because you don't have an app capable of opening it, or because it's corrupt, you can view its contents in terminal. Otherwise, you can use the keyboard shortcut command + space.