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With few modifications, you can also use the terminal on your android device similar to the way you do on your Linux system. Termux is one of the most popular android terminals and has a good active community to help you if do run into some problems. The OS is primarily Linux based, so with few modifications you can use it on your Android device. The terminal is a command line interface used to interact with computers. With MacOS, Linux and even sometimes windows, interacting with the terminal is common practice for developers.