转载来自CSDN:https://blog.csdn.net/apple_54172342/article/details/114001728

系统信息:

#!/bin/bash
sys_check(){
	os_type=$(uname)
		echo "操作系统的类型:${os_type}"
	os_ver=$(cat /etc/redhat-release)
		echo "操作系统的版本号:${os_ver}"
	os_ker=$(uname  -r)
		echo "系统内核版本号:${os_ker}"
	os_time=$(date +%F-%T)
		echo "服务器当前运行时间:${os_time}"
	os_last_reboot=$(uptime |awk '{print $3}'|awk -F ',' '{print $1}')
		echo "服务器最后重启时间:${os_last_reboot}"
	os_hostname=$(hostname)
		echo "服务器主机名称:${os_hostname}"
}

网络信息:

net_check(){
	ip_address=$(ifconfig ens33|awk '/netmask/{print $2}')
		echo "服务器的ip地址:${ip_address}"
	#验证服务器是否可以连通外网
	ping -c 2 baidu.com > /dev/null
	if [ $? -eq 0 ]; then
		echo "服务器的网络是ok的"
	else
		echo "请检查你的网络"
	fi
	#获取指定网卡的流量
	RX=$(ifconfig ens33|grep RX|sed -n '1p'|awk '{print $(NF-1)}'|awk -F '(' '{print $2}')
		echo "流入的量:${RX}MiB"
	TX=$(ifconfig ens33|grep TX|sed -n '1p'|awk '{print $(NF-1)}'|awk -F '(' '{print $2}')
		echo "流出额量:${TX}MiB"
}  

硬件信息:

cpu_check(){
	#cpu
	cpu_num=$(cat /proc/cpuinfo |grep "physical id"|sort |uniq |wc -l)
		echo "cpu的物理个数:${cpu_num}"
	cpu_core=$(cat /proc/cpuinfo |grep "cpu cores"|sort |uniq |awk -F ':' '{print $2}')
		echo "cpu的核心数:${cpu_core}"
	cpu_model=$(cat /proc/cpuinfo |grep "model name"|sort |uniq |awk -F ':' '{print $2}')
		echo "cpu的型号:${cpu_model}"
}
mem_check(){
	#mem
	mem_total=$(free |grep Mem|awk '{print $2}')
		echo "内存总大小:${mem_total}"
	mem_used=$(free |grep Mem|awk '{print $3}')
		echo "已用内存大小:${mem_used}"
	mem_free=$(free |grep Mem|awk '{print $4}')
		echo "剩余内存大小:${mem_free}"
	#已用内存百分比
	#${mem_used}/${mem_total}
	Percent_mem_used=$(echo "scale=2;${mem_used}/${mem_total}*100"|bc)
		echo "已用内存百分比:${Percent_mem_used}%"
	#剩余内存百分比
	#${mem_free}/${mem_total}
	Percent_mem_free=$(echo "scale=2;${mem_free}/${mem_total}*100"|bc)
		echo "剩余内存百分比:${Percent_mem_free}%"
}
disk_check(){
	#disk
	disk_total=$(lsblk |grep -w sda|awk '{print $4}')
		echo "磁盘的总量:${disk_total}"
	#剩余磁盘总量
	a=($(df -T|egrep -v "tmpfs|文件系统"|awk '{print $5}'))
	sum=0
	for i in ${a[@]}
		do
			let sum=sum+$i	
	done
	#kb(1024)-mb(1024)-Gb
	diskfree=$[$sum/1024/1024]
		echo "剩余磁盘总量:${diskfree}GB"
}  

安全信息:

sec_check(){
	#方法1:通过md5sum 生成校验码,判断文件内容是否有被改动!
	[ -f /opt/md5sum ] || md5sum /var/www/html/index.html > /opt/md5sum
	md5sum -c /opt/md5sum > /dev/null
	if [ $? -eq 0 ]; then
		echo "web 文件内容 没有被篡改!"
	else
		echo "小心!!被黑了!!"
	fi
	#方法2:判断web目录下的文件数是否有变动
	[ -f /opt/countfile_sec ] || find /var/www/html/ -type f  > /opt/countfile_sec
	rm -rf /opt/countfile
	[ -f /opt/countfile ] || find /var/www/html/ -type f  > /opt/countfile
	diff /opt/countfile /opt/countfile_sec > /dev/null
	if [ $? -eq 0 ]; then
		echo "web 目录下的文件数没有发生变化"
	else
		echo "web 目录发生了变化!!"
	fi
}  

输出信息:

while :
do
	sys_check
	net_check
	cpu_check
	mem_check
	disk_check
	sec_check
	sleep 60
done

在这里插入图片描述