Why is there a terminal emulator in the Android App Market?
So you can get direct access to the commandline?
Android is based on Linux, so it’s essentially the Linux commandline you’d be accessing here
If you don’t know the Linux commandline:
Please note that it’ll be a somewhat limited environment – you might need to root your phone to get access to everything, also some commands won’t be available, you probably want to install something like Busybox to get a more featureful environment.
As above – it’s for shell access, once you have root.
I’ve mainly just used it for browsing the file structure to get a better idea of where everything sits.
We use terminal emulator on Android for executing Linux core shells or other shells and program like that. It is a very useful app for Android developers.