企业日常巡检

[root@izbp176gmws1f6cpbllwouz ~]# vim check.sh


#!/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 " 最后启动时间: $OS_LAST_REBOOT_TIME"
echo " 本机名称: $OS_HOSTNAME"
}
function network(){
        echo "#####################网络信息########################"
        INTERNET=(`ifconfig|grep ens|awk -F: '{print $1}'`)   # centos6 ifconfig | grep Bcast | awk '{print $2}' | awk -F : '{print $2}'
        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 # 测试
        if [ $? -eq 0 ]
                then echo "    访问外网：成功"
        else
                echo "    访问外网：失败"
        fi
}
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"
}
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
}
function check(){
        system
        network
        hardware
        secure
}
check