20 Basic Keystrokes for Navigating GNU Info If UNIX has man command, then GNU has info . If you are using any GNU/Linux operating system (e.g. Ubuntu), then usually you have both commands man* and info inside your system. If you are accustomed to GNU/Linux co mmand lines, almost certain you will be very accustomed to man command there. But if you want to know GNU operating system closer, you need to know GNU Info (command name: info ) to read any of GNU documentations. This article covers examples about using info in the same way you use man. A. Basic Keys 1. Invoking Info info info sed info grep info info Note : special for GNU Info, invoking just info without any argument will open the whole documentations of the GNU operating system which are mostly distributed as Info format (not man format). This shows all documentations for the GNU components such as awk, sed, ls, cp, mv, and so on. There are exceptions for those GNU components that have the documentation not in Info f...