27 September 2011

What is Shell Script??

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Shell Script is nothing but sequence of commands that are stored in a single file (same like a text file) . The commands written in file are interpreted by Shell . A shell script is created for those commands which user need again and again , this save time as instead of writing same commands again and again you only need to enter the shell script name.

Advantages of using Shell Script:-

1. Save time
2. It is not compiled into a separate executable file as a C program is.

Disadvantages:-

1. Not fast in comparison to high level languages.
2. Complex code are very difficult to write using shell script.
Shell script files uses .sh extension . Shell Scripts are executed in a separate child shell process , and this sub-shell need not to be of same type as your login shell.

Enjoy :)


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