zabbix自定义监控系统信息

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#!/usr/bin/env bash

#系统时间
system_start_time=$(uptime|awk '{print $3}'|awk -F ',' '{print $NR}')

#cpu负载信息
cpu_avg1=$(top -bn 1 |grep 'load average' |awk -F ":" '{print $5}'|awk -F ',' '{print $1}')
cpu_avg5=$(top -bn 1 |grep 'load average' |awk -F ":" '{print $5}'|awk -F ',' '{print $2}')
cpu_avg15=$(top -bn 1 |grep 'load average' |awk -F ":" '{print $5}'|awk -F ',' '{print $3}')

#内存信息
memory_total="$(free -m | awk '/Mem:/ {print $2}')"
memory_used="$(free -m | awk '/Mem:/ {print $3}')"
memory_free="$(free -m | awk '/Mem:/ {print $4}')"
memory_available="$(free -m | awk '/Mem:/ {print $NF}')"

#磁盘信息


#网络流量
interface="enp4s0"    # 网卡名称
interval=1          # 输出时间间隔
rx_rate=$(sar -n DEV $interval 1|grep "$interface"|awk NR==1 | awk '{print $6}')
tx_rate=$(sar -n DEV $interval 1|grep "$interface"|awk NR==1 | awk '{print $7}')

case $1 in
  cpu_avg1)
    echo $cpu_avg1
  ;;
  cpu_avg5)
    echo $cpu_avg5
  ;;
  cpu_avg15)
    echo $cpu_avg15
  ;;
  memory_total)
    echo $memory_total
  ;;
  memory_used)
    echo $memory_used
  ;;
  memory_free)
    echo $memory_free
  ;;
  memory_available)
    echo $memory_available
  ;;
  rx_rate)
    echo $rx_rate
  ;;
  tx_rate)
    echo $tx_rate
  ;;
esac