Batch implementation of key based authentication using sshpass

#!/bin/bash
#  utilize sshpass Batch implementation is based on key verification 
# 192.168.100.{1..200}
[ -f /root/.ssh/id_rsa ] || ssh-keygen -f /root/.ssh/id_rsa -P ''
rpm -q sshpass &> /dev/null || yum install sshpass -y &> /dev/null

net=192.168.100
user=root

export SSHPASS=123456
for i in {1..200}
do
        {
                sshpass -e ssh-copy-id $net.$i -o StrictHostKeyChecking=no [email protected]$net.$i &> /dev/null && action "push key to $net.$i is successfully."
        }&                                                                    
done