Linux下万能巡检脚本 获取远程主机内存 cpu磁盘等信息

Posted 2022-03-16 河静CTO

​​脚本内容如下，可无偿定制，留言即可​​

#!/bin/bash
#DATE: 2022/3/11
#FUNC: collect remote machine info
#AUTHOR：hejing
#      1.获取每张网卡ipv4/ipv6/mac地址
#      2.获取内核版本/系统安装方式
#      3.获取磁盘/内存/CPU使用率


TIME=$(date "+%Y-%m-%d %H:%M:%S")
TIME_INTERVAL=5
NIC_NAME=(`ip a s | grep -E ^\\<[0-9]\\>: | awk -F: print $2 | awk gsub(/^\\s+|s+$/, "");print`)

function collect_IPV4 
        for i in $NIC_NAME[@]
        do
                IP4_ADD=(`ip a s | grep -i $i | grep -i inet | awk print $2`)
                printf "%-10s  %-10s %-10s %-10s\\n" 网卡名称是:$i     ip4地址是:$IP4_ADD
        done


function collect_IPV6 
        for i in $NIC_NAME[@]
        do
                 IP6_ADD=(`ip a s | grep -A2 $i | grep -i inet6 | awk print $2 `)
                printf "%-10s  %-10s %-10s %-10s\\n" 网卡名称是:$i      ip6地址是:$IP6_ADD
        done


function collect_MAC 
        for i in $NIC_NAME[@]
        do
                 MAC_ADD=(`ip a s | grep -A1 $i | grep -i "link/ether" | awk print $2`)
                printf "%-10s  %-10s %-10s %-10s\\n" 网卡名称是:$i   mac地址是:$MAC_ADD
        done


function collect_kernel 
        printf "%-10s\\n" 内核版本是:$(uname -r)


function collect_os_install 
        printf "%-10s\\n" 当前系统安装方式是:$(if [ `rpm -qa | wc -l` -le 1000  ];then echo "最小化安装mini"; else echo "图形化安装graph"; fi)


function collect_disk_root_use 
         TOTAL_SPACE=100
         USED_SPACE=$(df -k | grep -vE "文件系统|Filesystem" | grep -w "/" | awk print int($5))
         USED_PERCENT=$(($TOTAL_SPACE-$USED_SPACE)).00%
         echo "当前系统根目录可用率:$USED_PERCENT"


function collect_cal_cpu 
        #关于/proc/stat参考文档链接:https://man7.org/linux/man-pages/man5/proc.5.html
        #根据/proc/stat文件获取并计算CPU使用率
        #CPU时间计算公式：CPU_TIME=user+nice+system+idle+irq+softirq+iowait
        #CPU使用率计算公式：CPU_USAGE=(idle2-idle1)/(cpu2-cpu1)@100
        #默认时间间隔

         LAST_CPU_INFO=$(cat /proc/stat | grep -w cpu | awk print $2,$3,$4,$5,$6,$7,$8)
         LAST_SYS_IDLE=$(echo $LAST_CPU_INFO | awk print $4 )
         LAST_TOTAL_CPU_TIME=$(echo $LAST_CPU_INFO | awk print $1+$2+$3+$4+$5+$6+$7 )
        sleep $TIME_INTERVAL
         NEXT_CPU_INFO=$(cat /proc/stat | grep -w cpu | awk print $2,$3,$4,$5,$6,$7,$8)
         NEXT_SYS_IDLE=$(echo $NEXT_CPU_INFO | awk print $4 )
         NEXT_TOTAL_CPU_TIME=$(echo $NEXT_CPU_INFO | awk print $1+$2+$3+$4+$5+$6+$7 )

        #计算系统空闲时间
         SYSTEM_IDLE=`echo $NEXT_SYS_IDLE $LAST_SYS_IDLE | awk print $1-$2`
         TOTAL_TIME=`echo $NEXT_TOTAL_CPU_TIME $LAST_TOTAL_CPU_TIME | awk print $1-$2`
         CPU_USAGE=`echo $SYSTEM_IDLE $TOTAL_TIME | awk printf "%.2f", 100-$1/$2*100`
        echo "CPU使用率是:$CPU_USAGE%"


function collect_mem_use 
        TOTAL_MEM=$(free -m | sed -n 2p | awk print $2)
        USED_MEM=$(free -m | sed -n 2p | awk print $3)
        USED_PERCENT=$(echo $USED_MEM $TOTAL_MEM | awk printf "%.2f", $1/$2*100)
        echo  "当前系统总内存是:$TOTAL_MEMM,已使用内存是:$USED_MEMM,使用率达:$USED_PERCENT%"


echo "------------------------------------------------------------------------"
echo "------------------当前主机名:$HOSTNAME  当前时间:$TIME------------------"
echo "------------------------------------------------------------------------"

collect_IPV4
collect_IPV6
collect_MAC
collect_kernel
collect_os_install
collect_disk_root_use
collect_cal_cpu
collect_mem_use

​​执行后结果示例：​​