Android NDk and CLI

Is it possible to use CLI - Command Line Interface in Android NDK?? Is there such a function: exec (query)? Ie is it possible to 开发者_如何学Cmake queries from the command line C program?

officially

i have never seen commandline programs on android, whether written in java or android ndk.

unofficially

i have seen commandline c/c++ programs targeting arm processors and the authors claimed they run on android eg follow this link to whet your appetite

My thoughts?
Should you write such 'unofficial' applications, i doubt that you will be able to distribute them to your customers eg through the android market since android applications are dalvik executables(kind of java applications compiled and optimised for the dalvik virtual machine)