Rpm package installation error

am getting below error while installing package in devops pre-requisites course

thor@host01 /opt$ rpm -i ftp-0.17-67.el7.x86_64.rpmerror: can’t create transaction lock on /var/lib/rpm/.rpm.lock (Permission denied)

Hello, @itzgopi4u
Can you please use sudo in the beginning? as we know normal user has no privilege to install packages.