shell系统巡检脚本

Posted 2022-09-15 哭泣的馒头

1、Linux 基础信息巡检

sys_check()
        echo "主机名称：`hostname`"
        #echo "操作系统：`cat /etc/*-release|awk ENDprint`"
        echo "操作系统：`cat /etc/*-release|awk ENDprint|cut -d \\= -f 2|sed s/\\"//g`"
        echo "系统内核：`uname -r`"
        #echo "SELinux：`/usr/sbin/sestatus | grep SELinux status: | awk print $3`"
        echo "系统语言：`echo $LANG |awk -F "." print $1`"
        echo "系统编码：`echo $LANG |awk -F "." print $2`"
        echo "当前时间：`date +%F_%T`"
        echo "启动时间：`who -b | awk print $3,$4`"
        echo "运行时间：`uptime | awk print $3 " " $4 | sed s/,//g`"
        

cpu_Info()
        echo "CPU架构：`uname -m`"
        echo "CPU型号：`cat /proc/cpuinfo | grep "model name" | uniq|awk -F":" print $2`"
#        echo "CPU数量：`cat /proc/cpuinfo | grep "physical id"|sort|uniq|wc -l`颗"
 #       echo "CPU核心：`cat /proc/cpuinfo | grep "cpu cores"|sort|uniq|awk -F ":" print $2` 核"
        echo "CPU线程：`cat /proc/cpuinfo | grep "processor" | awk print $3| sort | uniq | wc -l` 线程"

        

cpu_Check()
        Check_Res=`sar -u 1 5 |grep Average`
        echo "CPU用户占比：`echo $Check_Res|awk printf $3`%"
        echo "CPU内核占比：`echo $Check_Res|awk printf $5`%"
        echo "ResCheck_CPURate：`echo $Check_Res|awk printf $3+$5`%"
        echo "CPU可用占比：`echo $Check_Res|awk printf $8`%"
        


mem_check()
        free_total=`free -m | grep Mem|awk printf $2`
        free_used=`free -m | grep -v Swap|awk ENDprintf $3`
        #free_available=`free -m | grep Mem|awk printf $4`
        #used_baifen=`echo "scale=2;$free_used/$free_total*100"|bc`
        echo "内存合计：`free -g | awk "NR==2"| awk print $2` GB "
        echo "内存used：`free -g | grep -v Swap | awk ENDprint $3` GB"
        #echo "内存buff/cache：`free -g | awk "NR==2"| awk print $6` GB"
        #echo "内存使用：`free -m | awk "NR==2"| awk printf ("%.2f\\n", ($3+$6)/1024)` GB 占比 `echo "scale=2;$free_used/$free_total*100"|bc`%"
        echo "ResCheck_MemRate： `echo "scale=2;($free_used/$free_total)*100"|bc`%"
        # echo "内存使用：`free -mh | awk "NR==2"| awk print $3+$6` G占比 `echo "scale=2;$free_used/$free_total*100"|bc`%"
        #echo "内存可用：`free -g | awk "NR==2"| awk print $4` GB 占比 `echo "scale=2;$free_available/$free_total*100"|bc`% "
        #echo "内存可用：`free -g | awk "NR==2"| awk print $4` GB 占比 `echo "scale=2;$free_available/$free_total*100"|bc`% "
        

disk_Check()

        echo "`df -h | sort |grep -E "/sd|/mapper" |awk print "ResCheck_DiskRate：分区" $1  ," 合 计"$2" 已用" $3 " 剩余"$4 " 使用占比 " $5`"

       # echo "`df -h | sort |grep /sd |awk print "ResCheck_DiskRate：分区" $1 ," 合计"$2" 已用" $3 " 剩余"$4 " 使用占比 " $5`"
        

ip_Addr()

        echo "`ifconfig -a|grep inet|grep -v 127.0.0.1|grep -v inet6 |awk -F " " BEGIN count=0 count=count+1; print "IP地址" count "：" $2`"




sys_check
cpu_Info
cpu_Check
mem_check
disk_Check
ip_Addr

2、服务器端口检查

port_Check()
#        local service_port=50456
        service_port=$1
        Temp_S=`netstat -naut| grep -v tcp6 |grep "0.0.0.0:$service_port "`
        if [ -z "$Temp_S" ]; then
                echo "ResCheck_Port：$service_port  Unknown"
        fi

        if [ -n "$Temp_S" ]; then
                #echo `echo $Temp_S|awk   print "ResCheck_Port：" service_port " " $6 service_port=$service_port `
                echo "ResCheck_Port：$service_port  LISTEN"
        fi



port_Check $1

3、检查远程主机端口状态

[root@hfeboasmg01 script]# cat remotePort_check.sh
remotePort_Check()
#        local service_port=50456
        Host=$1
        Port=$2
        #Temp_S=`netstat -naut| grep -v tcp6 |grep "0.0.0.0:$service_port "`
        #nc -z -v -w 5 $Host $Port &> /dev/null
        nc -z -v -w 5 $Host $Port
        res=$?
        #Do whatever you want

        if [ $res -eq 0 ]; then
                echo ResCheck_remotePort： port $Port on $Host is open
        else
                echo ResCheck_Port：port $Port on $Host is closed
        fi
        
remotePort_Check $1 $2

4、服务状态检查

service_Check()
        #返回服务状态

        service_name=$1
        #local service_name="sshd"
        echo `systemctl  status $service_name |grep Active |awk print "ResCheck_Service：" service_name " " $2 service_name=$service_name`
        


service_Check $1

5、网站可用性检查

url_Check()
        #通过端口的返回值判断状态

        url_path=$1

        #local url_path="https://asts.cxmt.com:8080"
        #echo `curl -k -s --head $url_path |awk NR==1 print "ResCheck_URL：" url_path " "$2$3 url_path=$url_path`
        url_checkRes=`curl  --connect-timeout 3 -k -s --head $url_path`
        if [ "$url_checkRes" ]; then
              echo `curl -k -s --head $url_path |awk NR==1 print "ResCheck_URL：" url_path " "$2$3 url_path=$url_path`
        else
              echo "ResCheck_URL：$url_path  Unreachable "
        fi
        

url_Check $1