Shell Scripting
A shell script is a text file that contains a sequence of commands for a Unix-based operating system. It’s called a shell script because it is interpreted by the shell (another program).
What is shell
Shell is a Linux term for the interactive user interface with an operating system.
The shell is the layer of programming that understands and executes the commands a user enters. In some systems, the shell is called a command interpreter.
Script
Script is a sequence of commands, interpreted by another program at runtime.
Why use shell scripting
• Easy to learn – compared to traditional programming languages.
• It takes much less code to do something with shell scripting than when using a traditional programming language.
• Shell scripting is portable to almost all linux variants.
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