Rendering multiple cameras with different frame range

This is a repeated question, and it have a simple workaround.
Simply use the command line render to determine the camera name along with the frame range
For example
Render –r mr –s 1- e 10 – cam camera1 myFile.mb
Render –r mr –s 11- e 20 – cam camera2 myFile.mb

You can also add the above 2 lines in a .bat file so you can execute them both at once