Editing Solaris 10 Associate (section)

== Components of Sun OS ==

Three components of Sun OS
* Kernel - the core of Sun OS and manages all physical resources of the computer
* Shell - a command interpreter and interfaces between user and kernel
* Directory Hierarchy

=== Default shells ===
Sun OS default primary shells:
* Bourne shell - original unix system shell and default for root user. regular user prompt is $ and root is #
* C shell - command line history, aliasing, and job control. default regular user is hostname% and root is hostname#
* Korn Shell - superset of Bourne shell plus C shell like features and enhancements. command line history, aliasing, job control, and command line editing default regular prompt is $ and root is #

Sun OS contains three alternative shells:
* Bash shell - GNU project Bourne Again SHell is bourne compatible shell that contains handy features from Korn and C shell.
* Z shell - resembles Korn shell plus enhancements
* TC shell - C compatible shell plus enhancements