system_info.sh

#!/bin/bash

disk_info ()
{
   echo "======================disk info========================"
   df -ThP|column -t
}

cpu_info ()
{
   echo "=======================cpu info========================"
   echo "cpu processor is $(grep "processor" /proc/cpuinfo |wc -l)"
   echo "cpu mode name is $(grep "model name" /proc/cpuinfo |uniq|awk '{print $4,$5,$6,$7,$8,$9}')"
   grep "cpu MHz" /proc/cpuinfo |uniq |awk '{print $1,$2":"$4}'
   awk '/cache size/ {print $1,$2":"$4$5}' /proc/cpuinfo |uniq
}

mem_info ()
{
   echo "=====================memory info========================"
   MemTotal=$(awk '/MemTotal/ {print $2}' /proc/meminfo)
   MemFree=$(awk '/MemFree/ {print $2}' /proc/meminfo)
   Buffers=$(awk '/^Buffers:/ {print $2}' /proc/meminfo)
   Cached=$(awk '/^Cached:/ {print $2}' /proc/meminfo)
   FreeMem=$(($MemFree/1024+$Buffers/1024+$Cached/1024))
   UsedMem=$(($MemTotal/1024-$FreeMem))
   echo "Total memory is $(($MemTotal/1024)) MB"
   echo "Free  memory is ${FreeMem} MB"
   echo "Used  memory is ${UsedMem} MB"
}

loadavg_info ()
{
   echo "===================load average info===================="
   Load1=$(awk  '{print $1}' /proc/loadavg)
   Load5=$(awk  '{print $2}' /proc/loadavg)
   Load10=$(awk '{print $3}' /proc/loadavg)
   echo "Loadavg in 1  min is $Load1"
   echo "Loadavg in 5  min is $Load5"
   echo "Loadavg in 10 min is $Load10"
}

network_info ()
{
   echo "=====================network info======================="
   network_card=$(ip addr |grep inet |egrep -v "inet6|127.0.0.1" | awk '{print $NF}')
   IP=$(ip addr |grep inet |egrep -v "inet6|127.0.0.1" |awk '{print $2}' |awk -F "/" '{print $1}')
   MAC=$(cat /sys/class/net/$network_card/address) 
   echo "network: $network_card  address is  $IP"
   echo " IP: $IP"
   echo "MAC: $MAC"
}



disk_info 
cpu_info
mem_info 
loadavg_info   
network_info