It has many of its own features as well, like built-in command line editors and unique shell functions. Below is a brief overview on using the Korn Shell. The Korn Shell has new and improved features that make it desirable to use over most shells, and these are summarized below. The history file is maintained across login sessions.
Aliases provide a means of shortening the name of a command or sequence of commands.
When you type an alias on the command line, the shell replaces it with the command sequence to which it refers. Aliases effectively allow you to abbreviate commands and to alter the mean- ing of existing commands from your point of view. Users can return to the previous directory without typing its whole pathname. You can use vi or emacs directives to edit current and previous commands before re-issuing them. Emacs Usually by default, vi is set as your editor.