Install btest by entering the following commands in the terminal:
sudo apt update sudo apt install btest
simple driver for basic unit tests
"btest" is a simple framework for writing unit tests. Freely borrowing some ideas from other packages, it's main objective is to provide an easy-to-use, straightforward driver for a suite of shell-based tests. Each test consists of a set of command lines that will be executed, and success is determined based on their exit codes. "btest" comes with some additional tools that can be used within such tests to compare output against a previously established baseline.