1 00:00:06,559 --> 00:00:08,220 All right, let's look. Command Overview. 2 00:00:08,839 --> 00:00:13,050 Now, the funny thing is that the Command Overview is relatively short this time, 3 00:00:13,050 --> 00:00:17,260 because we talked about shell features a lot, which are not executed as command. 4 00:00:17,820 --> 00:00:21,480 But we have seen the T command, which allows you to send output in 5 00:00:21,480 --> 00:00:25,140 two directions to a file and to be further processed in a pipe. 6 00:00:25,690 --> 00:00:30,603 We've seen History, which allows you to work with your command line history, Alias, which 7 00:00:30,603 --> 00:00:35,516 allows you to define your own commands, and export, which is what you want to 8 00:00:35,516 --> 00:00:40,429 use while setting variables in a way that they are available in subshells as well.