Its backend package manager is Apt from Debian Linux, but Termux uses the pkg command as a simplified frontend interface.

If you're used to Linux, or even Homebrew on a Mac or Chocolatey on Windows, then you already know how to install more commands for Termux. There are also several other shells available, including Zsh and tcsh. Most of the commands you're used to will work as expected, whether they're built-in Bash commands or the usual array of common Linux commands and utils. On long trips, I prefer to carry a Bluetooth keyboard with me, so I can use Termux as easily as a terminal on my desktop or laptop.

Most importantly, the Termux interface provides software Ctrl, Alt, Esc, and arrow keys, so essential keystroke shortcuts are easy to type-even on a virtual keyboard. You can use most of the usual terminal applications you are familiar with, or you can become familiar with them now that you have them on your phone. Once you have Termux installed on your mobile phone, you essentially have a minimal Linux system running as an application on your (Linux-based) Android device. You can also download the source code and compile it yourself.

Free online course: RHEL Technical Overview.

Termux for windows