#!/bin/bash

function system(){
echo "#########################系统信息#########################"
OS_TYPE=`uname`
OS_VER=`cat /etc/redhat-release`
OS_KER=`uname -a|awk '{print $3}'`
OS_TIME=`date +%F_%T`
OS_RUN_TIME=`uptime |awk '{print $3}'|awk -F, '{print $1}'`
OS_LAST_REBOOT_TIME=`who -b|awk '{print $2,$3}'`
OS_HOSTNAME=`hostname`

echo "    系统类型：$OS_TYPE"
echo "    系统版本：$OS_VER"
echo "    系统内核：$OS_KER"
echo "    当前时间：$OS_TIME"
echo "    运行时间：$OS_RUN_TIME"
echo "最后重启时间：$OS_LAST_REBOOT_TIME"
echo "    本机名称：$OS_HOSTNAME"
}
system

function network(){
echo "#########################网络信息#########################"
INTERNET=(`ifconfig|grep ens|awk -F: '{print $1}'`)
for((i=0;i<`echo ${#INTERNET[*]}`;i++))
do 
  OS_IP=`ifconfig ${INTERNET[$i]}|head -2|grep inet|awk '{print $2}'`
  echo "      本机IP：${INTERNET[$i]}:$OS_IP"
done
curl -I http://www.baidu.com &>/dev/null
if [ $? -eq 0 ]
then echo "    访问外网：成功"
else echo "    访问外网：失败"
fi
}
network

function hardware(){
echo "#########################硬件信息#########################"
CPUID=`grep "physical id" /proc/cpuinfo |sort|uniq|wc -l`
CPUCORES=`grep "cores" /proc/cpuinfo|sort|uniq|awk -F: '{print $2}'`
CPUMODE=`grep "model name" /proc/cpuinfo|sort|uniq|awk -F: '{print $2}'`

echo "     CPU数量: $CPUID"
echo "     CPU核心:$CPUCORES"
echo "     CPU型号:$CPUMODE"

MEMTOTAL=`free -m|grep Mem|awk '{print $2}'`
MEMFREE=`free -m|grep Mem|awk '{print $7}'`

echo "  内存总容量: ${MEMTOTAL}MB"
echo "剩余内存容量: ${MEMFREE}MB"

disksize=0
swapsize=`free|grep Swap|awk {'print $2'}`
partitionsize=(`df -T|sed 1d|egrep -v "tmpfs|sr0"|awk {'print $3'}`)
for ((i=0;i<`echo ${#partitionsize[*]}`;i++))
do
disksize=`expr $disksize + ${partitionsize[$i]}`
done
((disktotal=($disksize+$swapsize)/1024/1024))

echo "  磁盘总容量: ${disktotal}GB"

diskfree=0
swapfree=`free|grep Swap|awk '{print $4}'`
partitionfree=(`df -T|sed 1d|egrep -v "tmpfs|sr0"|awk '{print $5}'`)
for ((i=0;i<`echo ${#partitionfree[*]}`;i++))
do
diskfree=`expr $diskfree + ${partitionfree[$i]}`
done

((freetotal=($diskfree+$swapfree)/1024/1024))

echo "剩余磁盘容量：${freetotal}GB"
}
hardware

function secure(){
echo "#########################安全信息#########################"

countuser=(`last|grep "still logged in"|awk '{print $1}'|sort|uniq`)
for ((i=0;i<`echo ${#countuser[*]}`;i++))
do echo "当前登录用户：${countuser[$i]}"
done

md5sum -c --quiet /opt/passwd.db &>/dev/null
if [ $? -eq 0 ]
then echo "    用户异常：否"
else echo "    用户异常：是"
fi
}
secure