#!/bin/sh

clear

if [[ $# -eq 0 ]]

then

#Define Variable Reset_terminal

    Reset_terminal=$(tput sgr0)

#Check OS Type

    OS=$(uname -o)

    echo -e '\E[36m' "Operating System Type :" $Reset_terminal $OS

#Check OS Realease Version And Name

    OS_name=$(cat /etc/issue | grep "Server")

    echo -e '\E[36m' "Operating System Realease Version :" $Reset_terminal $OS_name

#Check Architecture

    Architecture=$(uname -m)

    echo -e '\E[36m' "Operating System Architecture :" $Reset_terminal $Architecture

#Check Kernel Realease

    Kernel_Realease=$(uname -r)

    echo -e '\E[36m' "Operating System Kernel Realease :" $Reset_terminal $Kernel_Realease

#Check Hostname

    Hostname=$(hostname)

    echo -e '\E[36m' "Operating System Hostname :" $Reset_terminal $Hostname

#Check Internal IP

    Internal_IP=$(hostname -I)

    echo -e '\E[36m' "Operating System Internal IP :" $Reset_terminal $Internal_IP

#Check External IP

    External_IP=$(curl -s http://ipecho.net/plain)

    echo -e '\E[36m' "Operating System External IP :" $Reset_terminal $External_IP

#Check DNS

#    DNS=$(cat /etc/resolv.conf | grep "/<nameserver[ ]+"|awk '{print $NF}')

#    echo -e '\E[36m' "Operating System DNS :" $Reset_terminal $DNS

#Check if connected To Internet Or Not

#    ping -c2 www.baidu.com &>/dev/null && echo -e '\E[36m' "Internet : Connected" || echo '\E[36m' "Internet : Failed"

#Check Logged In Users

    who > /tmp/who

    echo -e '\E[36m' "Operating System Lgged In Users :" $Reset_terminal && cat /tmp/who

    rm -f /tmp/who

#Check OS Memory Userages

    echo -e '\E[36m' "Operating System Memory Userages :" $Reset_terminal $(cat /proc/meminfo | awk '/^MemTotal/{MemTotal=$2}/^MemFree/{MemFree=$2}END {print (MemTotal-MemFree)/1024,"M"}')

#Check App  Memory Userages

    echo -e '\E[36m' "App Memory Userages :" $Reset_terminal $(cat /proc/meminfo | awk '/^MemTotal/{MemTotal=$2}/^MemFree/{MemFree=$2}/^Buffers/{Buffers=$2}/^Cached/{Cached=$2}END {print (MemTotal-MemFree-Buffers-Cached)/1024,"M"}')

#Check OS Loadaverage

    echo -e '\E[36m' "Operating System Loadaverage :" $Reset_terminal $(top -n1b | grep "load average" | awk '{print $(NF-2) $(NF-1) $NF}')

#Check CPU Userages

echo -e '\E[36m' "Operating System CPU Userages(us,sy,id):" $Reset_terminal  $(top -b -n 1 | grep Cpu | awk -F ' ' '{print $2,$3,$5}')

#Check OS Diskaverage

    echo -e '\E[36m' "Operating System Diskaverage :" $Reset_terminal $(df -hP | grep -vE "%%|tmpfs" | awk '{print $1,$5}')

#Check OS Runtime

    echo -e '\E[36m' "Operating System Runtime :" $Reset_terminal $(top -n1b | grep "load average" | awk -F"[ ,]+" '{print $5}')

fi