how to check cpu percentage used in linux code example

Example 1: chcek number of cpus available on linux machine

lscpu | egrep 'CPU\(s\)'

Example 2: get current cpu utilization in percentage linux

top -bn1 | grep "Cpu(s)" | \
           sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | \
           awk '{print 100 - $1"%"}'