#!/bin/bash
echo -e "Now       : $(date -R)"
test -f /etc/os-release && echo -e "\nOp. System: $(cat /etc/os-release | grep PRETTY_NAME | cut -d'"' -f2)"
if test -f /etc/redhat-release && test ! -f /etc/os-release; then echo -e "\nOp. System: $(cat /etc/redhat-release)" ; fi;
echo -e "Hostname  : $HOSTNAME"
echo -e "Disk Usage: $(df -h /dev/vda1 | grep vda1 | awk -F' ' '{print $5}')\n"