sc CentOS code example
Example: sc CentOS
rpm -Uvh http://download.fedoraproject.org/pub/epel/7/i386/epel-release-7-8.noarch.rpm
rpm -Uvh http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-5.el7.nux.noarch.rpm
yum install shutter