randomtcsh

tcsh random number from /dev/random and /dev/urandom

I am trying to figure out how to generate random from using /dev/random and /dev/urandom in tcsh. After I do head -c 1 /dev/random, I get a random byte. How do I turn this byte into actual number?

Solution 
  • $ head -c 1 /dev/urandom | od -t u1 | cut -c9-

    That will give you a random integer between 0 and 255 inclusive.