建议：希望增加监控，监控主机的内存和cpu情况

[zzzlang]

No description provided.

[yangshuDBA]

一个脚本的事
#!/bin/bash
#author:yangshu
#检查磁盘使用率
#检查Inode使用率
#检查内存使用率
#v1.0.7 增加CPU监控
#V1.0.8 增加告警阈值红色显示
#V1.0.9 修复告警多个指标判断逻辑
check_disk_usage() {
local alert_percent=$1
local output=$(df -PTl | grep "/dev" | grep -Ev "tmpfs|sr0|cdrom|:" | sed 's/%//g' | awk -v var="$alert_percent" '{if($6>var) print "告警目录: "$7 " 使用率 " $6"%"}')
if [[ -z "$output" ]]; then
return 0
else
echo -e "磁盘使用率超过 $alert_percent% \t $output"
return 1
fi
}

check_inode_usage() {
local alert_percent=$1
local output=$(df -PTil | grep "/dev" | grep -Ev "tmpfs|sr0|cdrom|:" | sed 's/%//g' | awk -v var="$alert_percent" '{if($6>var) print $0}')
if [[ -z "$output" ]]; then
return 0
else
echo -e "innode使用率超过 $alert_percent% \t $output"
return 1
fi
}

check_memory_usage() {
local alert_percent=$1
local output=$(free | grep Mem | awk '{printf("%.0f"), $3/$2*100}')
if [[ $output -gt $alert_percent ]]; then
echo -e "内存使用率超过 $alert_percent% \t 当前为$output%"
return 1
fi
return 0
}

check_cpu_usage() {
local alert_percent=$1
local output=$(top -bn1 | grep "Cpu(s)" | awk '{print $2 + $4}')
if (( $(echo "$output > $alert_percent" | bc -l) )); then
echo -e "CPU使用率超过 $alert_percent% \t 当前为$output%"
return 1
fi
return 0
}

main() {
disk=$(check_disk_usage 90)
inode=$(check_inode_usage 80)
memory=$(check_memory_usage 95)
cpu=$(check_cpu_usage 90)
all_check=$disk$inode$memory$cpu
if [[ -z $all_check ]]; then
echo -e "\t 巡检正常 \t"
return 0
else
echo -e "\t 巡检异常\n \t$all_check \t"
return 1
fi
}

main