Introduction to the basic Unix commands cd, ls, and pwd. Also covers topics such as the path, home directory, and keyboard shortcuts. 0:03 Overview of commands 0:35 The Terminal 1:11 ls and the home directory 1:24 Printing the path with pwd 1:36 root and absolute paths 1:55 Changing directories with cd and relative paths 2:30 Making directories with mkdir 3:11 The parent directory .. 3:37 The current directory . 4:00 Tab completion 4:32 Command line removal with ctrl+u 4:52 The home directory and the tilde sign ~ 5:10 Arguments 5:23 Exercises 5:33 Review