array operations

Bash is a powerful scripting language widely used for automating tasks in Linux systems. One of Bash's noteworthy features is its support for arrays and associative arrays (also known as hash maps or dictionaries in other programming languages). Arrays allow you to store and manipulate a series of values under a single name, while associative arrays enable you to use key-value pairs for data storage. In this article, I'll guide you through the basic operations on arrays and associative arrays in Bash, and provide operating instructions tailored for different Linux package managers where necessary.