centos7常规系统指标监控shell脚本

一共两个脚本

monitor.sh

#!/bin/bash
log=/var/log/`date '+%Y-%m-%d'`.monitor.log

while [[ ture ]]; do
    bash `pwd`/excute.sh  >> ${log}
    sleep 10
done

excute.sh

#!/bin/bash
disk=sda
ethn=ens192

function ltime() {
    echo -e "\n"
    echo -e "time:\t\t"`date '+%Y/%m/%d-%k:%M:%S'`
}

function mem() {
    #mem
    echo -e "mem_use:\t"`free -m | awk 'NR==2{print $3"MB"}'`
}

function cpu() {
    #CPU
    total=`vmstat 1 5|awk '{x+=$13;y+=$14}END{print x+y}'`
    average=$(echo "scale=2;$total/5"|bc)
    echo -e "cpu_use:\t$average%"
}

function disk_io() {
    #IO
    echo -e "disk_io:\t"`iostat | awk 'BEGIN{disk="'"$disk"'"}{if ($1==disk) print $1" tps:"$2" kB_read/s:"$3" kB_wrtn/s:"$4;}'`
}

function network() {
    RX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}')
    TX_pre=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $10}')
    sleep 1
    RX_next=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $2}')
    TX_next=$(cat /proc/net/dev | grep $ethn | sed 's/:/ /g' | awk '{print $10}')
    RX=$((${RX_next}-${RX_pre}))
    TX=$((${TX_next}-${TX_pre}))
    if [[ $RX -lt 1024 ]];then
      RX="${RX}B/s"
    elif [[ $RX -gt 1048576 ]];then
      RX=$(echo $RX | awk '{print $1/1048576 "MB/s"}')
    else
      RX=$(echo $RX | awk '{print $1/1024 "KB/s"}')
    fi
    if [[ $TX -lt 1024 ]];then
      TX="${TX}B/s"
    elif [[ $TX -gt 1048576 ]];then
      TX=$(echo $TX | awk '{print $1/1048576 "MB/s"}')
    else
      TX=$(echo $TX | awk '{print $1/1024 "KB/s"}')
    fi
    echo -e "network:\t$ethn \t RX:$RX   TX:$TX "
}

ltime
mem
cpu
disk_io
network