The command line/palette 

Just at the bottom of the drawing area, you will see the command line or command palette. In this book, I will refer to it as the command line. All your typed commands will show up in this command line; you don't need to click on the command line to start typing any AutoCAD command, just start typing without selecting anything and the input will be added to the command line directly.

In its default state, the command line will show the Type a command message and when you select any command, it will show the name of the command and, next, a set of instructions in the command line, as in the following screenshot:

If for some reason you don't see the command line, then press the Ctrl + 9 keys to turn it on; you can press the Ctrl + 9 keys again to hide the command line. This command line is like a floating palette and you can even resize it or move it around in the drawing area. You can see a list of previously entered commands in the command line by pressing the F2 function key.