// COMMAND LINE 101 Learning the Command Line From the Basics Sharing some of my notes on command line basics. Feel free to use this post as a free Command Line 101 course . I'm going to cover the following topics: What Even Is the Command Line? Understanding Files, Folders, and Paths Exploring Files and Folders with ls Moving Around in the Terminal Creating and Removing Files Working with Directories Writing to Files with echo Reading Files with cat Finding Files with find Searching Inside Files with grep Moving and Renaming Files Compressing Files Using sudo Combining Commands What Even Is the Command Line? The command line is basically a way to communicate with your computer by typing commands instead of clicking buttons. If you normally create a folder by doing: Right Click → New Folder you can do the same thing from the terminal with: ...