25-08-2017, 09:32 PM
Shell script
AIM:-
Study & Implementation of shell script
RELEVANCE:-
To implement the programs for shell script
THEORY:-
The Shell - A command line interpreter that acts as an interface between users and the OS. When a command is given, the shell interprets the command and call the program. I can also be used as a high level programming language.
bash - is the shell, or command language interpreter, that will appear in the GNU operating system. The name is an acronym for the `Bourne-Again Shell'
tcsh - is a C shell that features a scrollable command history list with interactive editing. Tcsh makes it much easier to fix typos and reuse commands. In the following sections, '%' is the Unix command prompt.
zsh - is arguably the most powerful and configurable UNIX shell available. There are very few, if any, things that other shells can do that zsh can not.
-Why Use Shells