Unix Interview Questions and Answers

 

What is a UNIX OS shell?

A shell is an interactive user interface to an operating system services that allows
an user to enter commands as character strings or through a graphical user interface.
The shell converts them to system calls to the OS or forks off a process to execute
the command. System call results and other information from the OS are presented
to the user through an interactive interface. Commonly used shells are sh,csh,ks
etc.

Posted by:Richards