CertiGuide to A+ (A+ 4 Real)  9  Chapter 5: The Linux Operating System       9  Basic Concepts and Procedures for Creating, Viewing and Editing Files and Directories            9  Shell Information

Shell Information 1 Number

The Bash shell stores a history of the most recent commands used in a file called .bash_history (notice that this is a hidden file). Viewing this file using less will show typically, the last 500 commands issued. Alternatively, the history list can be seen by typing the command:

history

This will send a list of the commands that have been executed to the screen with a number that is their order in the history buffer. These commands can be recalled and re-executed or edited and then executed. A command can be recalled by repeatedly depressing the up arrow key until the command that is to be re-executed appears and typing <enter>. There are several other ways to recall the commands and modify them, two of which will be discussed here.

Shell Information 1 Number