I am running Ubuntu 14.04 (64 bit). When I first found out about the command
xterm, I tried the command
xterm xterm, and it started infinitely opening new xterm windows.
ctrl + C stops it immediately and closes all windows.
But I wanted to see how far it goes and let it run as long as it can. It ate up almost all the RAM and eventually got closed (I think by the system itself).
So just out of curiosity, why/how does this happen?