how to manually increase CPU utilization in linux code example

Example 1: get current cpu utilization in percentage linux

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

Example 2: how to max cpu usage in linux

cat /proc/cpuinfo