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Customizing your environment
Configuring and working with the shells
What is a shell?
What the different shells are for
Identifying your login shell
What happens when you log in
Understanding variables
Setting shell variables
Setting environment variables
Exporting variables to the environment
A sample login script
Modifying the shell environment
Resetting the environment
Some features to make life easier
Making your prompt tell you where you are
Adding a logout script
Recalling and editing previous commands
Korn shell history editing
C shell history editing
Using aliases
How aliases are executed
How the shell works
How the shell executes commands