====== Useful commands ======

version: <code>cat /etc/redhat-release</code>
update: <code>yum update</code>
update php: <code>yum update php php-cli php-gd php-pdo php-common php-xml php-mbstring php-mysql</code>
check installed packages: <code>yum list installed *package*</code>- example:<code>yum list installed *httpd*</code>