How to Use getopts in Bash

In Linux, tasks can be automated by writing several commands in one script and then executing the script whenever the same set of commands are needed. These scripts accept a variety of command-line arguments, which are often passed collectively when the script is executed.

The good thing is that a built-in function (called getopts) is available in Linux that is used to parse these command-line arguments. In this tutorial, you will learn about the getopts function in detail and how to use it to handle command-line arguments very effectively. This is explained with the help of several examples.

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Source: Linux Today