If you've got a rooted Android smartphone or tablet, you could do with downloading BusyBox. It's an application that provides us with a complete toolbox for rooted mobile devices.
What can we use BusyBox for?
Installing the APK you'll be able to get hold of different GNU tools and commands in a single binary file. There are over 300 commands available to manage certain areas of the operating system, increasing the amount that Android's toolbox already comes with.
More control functions for Android.
This app comes along with both a free and pro version, being both of them appropriate to take greater control of whatever system areas we need to manage and that are usually beyond the user's reach.