check virtualization in Linux

 If you want use virtualization we need check if it is enabled.

How to check? 

1. check file /proc/cpuinfo

this:

egrep -c '(vmx|svm)' /proc/cpuinfo

Some notes:

egrep -c = count grep 

egrep = grep -E = grep use regular expressions 

A) this is an example when virtualization is not enabled:

[root@tomandjerry ~]# egrep -c '(wmx|svm)' /proc/cpuinfo

0

If this system supports virtualization: we need output greater then 0

like this:

B)

root:server1986:~ # egrep -c '(wmx|svm)' /proc/cpuinfo

24