Hi, I'm writing a shell script within barebox to assist an embedded board initialization process. Some commands in the script do firmware download with tftp; to allow initializing more than one board at a time I need to assign every board a random ip address; I would like to have a shell variable that every time it is dereferenced it results in a new random (8 bits) value so I could write: eth0.ipaddr=10.$RND.$RND.$RND Is there a way to do something similar in barebox ? giorgio