You get to program with commands you already know, while learning staples of most major programming languages. That’s really the power of scripting, I think. And, you don’t have to learn another language because you’re using what you already know: the command-line. Scripting allows you to use programming functions - such as ‘for’ loops, if/then/else statements, and so forth - directly within your operating system’s interface. Scripts aren’t just invocations of commands, either. You can automate backups and each copied file can have the current date appended to the end of its name. You can invoke a command, like date, and use it’s output as part of a file-naming scheme. They also allow for far more useful functions, such as command substitution. Shell scripts allow us to program commands in chains and have the system execute them as a scripted event, just like batch files.
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