Pretty sure it's just this: > python -c "for i in range(4): print(__import__('os').urandom(12)[__import__('random').randint(1,4):12])" Or something like it, t

Pretty sure it's just this: > python -c "for i in range(4): print(__import__('os').urandom(12)[__import__('random').randint(1,4):12])" Or something like it, that bash one liner is pretty unreadable and full of side effects that may or may not be needed. A small 3 line python file would be cleaner and more readable.