Linux/Mac/Cygwin: Bash scripts are collections of command line operations that automate frequently-performed actions in the terminal. If you're sick of typing out a set of commands one by one, it's ...
Linux scripting automates repetitive tasks like converting file formats and can save hours of work. You can find and adapt scripts online easily, with plenty of resources and guides available.
Learning this one feature means covering a huge chunk of Bash's capabilities.