Display Number of Processors on Linux

http://www.howtogeek.com/howto/ubuntu/display-number-of-processors-on-linux/

cat /proc/cpuinfo | grep processor | wc -l

The command just looks in the /proc/cpuinfo file, pulls out the number of lines containing the word “processor” and passes them into wc (word count), which returns a count of the CPUs in the system.

Here’s what it returned on my remote server:

[root@root]# cat /proc/cpuinfo | grep processor | wc -l

4