epel repo for centos 7 code example
Example 1: install epel repo centos 7
cd /tmp
wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
ls *.rpm
Example 2: epel repo
yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm