Inspección empresarial del script de shell

[root@localhost ~]# vim  sys_check.sh 
#!/bin/bash
sys_check(){
    
    
        ##系统信息##
        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}"
}


net_check(){
    
    
        ##网络信息##
        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 [ $? -eq 0 ]; then
                echo "服务器的网络是ok的"
        else
                echo "请检查你的网络"
        fi
        #获取指定网卡的流量
        ##流入的量
        RX=$(ifconfig ens33|grep RX|sed -n '1p'|awk '{print $(NF-1)}'|awk -F '(' '{print $2}')
        echo "流入的量:${RX}MiB"
        ##流出的量
        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
        [ -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
}
#while :
#do
        sys_check
        net_check
        cpu_check
        mem_check
        disk_check
        sec_check
#done

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Origin blog.csdn.net/weixin_48753359/article/details/109749100
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