shell脚本监控CPU、磁盘、内存、网络流量

最新推荐文章于 2024-03-16 11:21:52 发布

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最新推荐文章于 2024-03-16 11:21:52 发布

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分类专栏： linux 文章标签： linux 服务器 shell cpu 内存

本文链接：https://blog.youkuaiyun.com/qq_37651894/article/details/126173435

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这个脚本主要用于监控Linux服务器的CPU利用率、硬盘I/O负载、内存使用、网络流量等关键指标。它首先检查系统类型并安装必要的监控工具，然后提供交互式菜单，用户可以选择查看CPU负载、硬盘使用率、内存使用情况、网络流量等信息，实时展示各项指标，便于系统管理员了解服务器健康状况。

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#!/bin/bash
#show system information
PS3="Your choice is: "
os_check() {
        if [ -e /etc/redhat-release ]; then
                REDHAT=`cat /etc/redhat-release |cut -d' '  -f1`
        else
                DEBIAN=`cat /etc/issue |cut -d' ' -f1`
        fi

        if [ "$REDHAT" == "CentOS" -o "$REDHAT" == "Red" ]; then
                P_M=yum
        elif [ "$DEBIAN" == "Ubuntu" -o "$DEBIAN" == "ubutnu" ]; then
                P_M=apt-get
        else
                Operating system does not support.
                exit 1
        fi
}

if [ $LOGNAME != root ]; then
    echo "Please use the root account operation."
    exit 1
fi

if ! which vmstat &>/dev/null; then
        echo "vmstat command not found, now the install."
        sleep 1
        os_check
        $P_M install procps -y
        echo "-----------------------------------------------------------------------"
fi

which iostat &>/dev/null
if [ $? -ne 0 ]; then
        echo "iostat command not found, now the install."
        sleep 1
        os_check
        $P_M install sysstat -y
        echo "-----------------------------------------------------------------------"
fi
 
while true; do
    select input in cpu_load disk_load disk_use disk_inode mem_use tcp_status cpu_top10 mem_top10 traffic quit; do
        case $input in
            cpu_load)
                #CPU利用率与负载
                echo "---------------------------------------"
                i=1
                while [[ $i -le 3 ]]; do
                    echo -e "\033[32m  参考值${i}\033[0m"
                    UTIL=`vmstat |awk '{if(NR==3)print 100-$15"%"}'`
                    USER=`vmstat |awk '{if(NR==3)print $13"%"}'`
                    SYS=`vmstat |awk '{if(NR==3)print $14"%"}'`
                    IOWAIT=`vmstat |awk '{if(NR==3)print $16"%"}'`
                    echo "Util: $UTIL"
                    echo "User use: $USER"
                    echo "System use: $SYS"
                    echo "I/O wait: $IOWAIT"
		    let i++
                    sleep 1
                done
                echo "---