`grep 'core id' /proc/cpuinfo | sort -u | wc -l` will work. See http://serverfault.com/questions/262867/how-to-find-out-if-my-debian-server-setup-is-a-dual-cor

`grep 'core id' /proc/cpuinfo | sort -u | wc -l` will work. See http://serverfault.com/questions/262867/how-to-find-out-if-my-debian-server-setup-is-a-dual-core-or-not/262876#262876 http://serverfault.com/questions/262867/how-to-find-out-if-m...