Detect number of CPUs installed

Question

I already found a solution for \"Most unixes\" via cat /proc/cpuinfo, but a pure-Ruby solution would be nicer.

Answer 1

@grosser:

when /linux/  
  `grep -c processor /proc/cpuinfo`.to_i

http://www.partmaps.org/era/unix/award.html#cat
http://www.partmaps.org/era/unix/award.html#wc