Ascii Screenshots
Sometimes its useful to create a screenshot of commands that are executed on the a terminal. The GNU program screen can help you with creating the 'pictures'.
There are two commands in screen, that will let you make a copy of the screen. The first command is the hardcopy command. Press C-a h to create a copy of currently visible screen. This is useful when you have one screenful or a part of it that you want to use in an article.
The second command uses the logging functionality of screen. Press C-a H to activate the logging.