install psql on amazon linux code example

Example 1: amazon linux postgresql client

[ec2-user ~]$ sudo yum install -y  https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-7-x86_64/pgdg-redhat10-10-2.noarch.rpm

[ec2-user ~]$ sudo sed -i "s/rhel-\$releasever-\$basearch/rhel-latest-x86_64/g" "/etc/yum.repos.d/pgdg-10-redhat.repo"

Example 2: amazon linux postgresql client

yum install -y https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-latest-x86_64/postgresql10-libs-10.7-2PGDG.rhel7.x86_64.rpm
yum install -y https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-latest-x86_64/postgresql10-10.7-2PGDG.rhel7.x86_64.rpm
yum install -y https://download.postgresql.org/pub/repos/yum/10/redhat/rhel-latest-x86_64/postgresql10-server-10.7-2PGDG.rhel7.x86_64.rpm