Access your Android's built-in command line shell
Top Features
+ Full Linux terminal emulation. + Multiple windows. + Launcher short cuts. + UTF-8 text. (Arabic, Bulgarian, Chinese, Greek, Hebrew, Japanese, Korean, Russian, Thai, etc.) + Completely free. No ads, no in-app-purchases, no nag screens, nothing.
You may want to install additional utilities in order to add commands beyond the commands that come built into your Android device.