On Debian, Ubuntu, or derivative systems (like Linux Mint or Kali), you can install it using the terminal:
If you are attempting to unlock a bootloader, flash a custom ROM, or simply sideload an app via the command line, this package is often a prerequisite. It provides the bridge that allows tools like adb (the bridge) and fastboot (the flasher) to identify your device uniquely and securely. How to Install android-sdk-platform-tools-common