how to install 'screen' on target board?
root@imx6dlsabreauto:/usr/bin# uname -a
Linux imx6dlsabreauto 3.10.17-1.0.1_ga+gdac46dc #1 SMP PREEMPT Fri Jul 31 01:50:02 PDT 2015 armv7l GNU/Linux
root@imx6dlsabreauto:/usr/bin# screen
-sh: screen: command not found
root@imx6dlsabreauto:/usr/bin# sudo apt-get install screen
sudo: apt-get: command not found