Tuserload

#!/bin/bash
#
#description:
#Tuserload	this is the check script for cheking loading user to mail
#
#### BEGIN INFO
# Provides: maycap
# Required-Start: null
# Should-Start: null
# version：1.0
# date:2014-6-8 
### END INFO

DIR='/usr/monitor/check'
MUSER='gencat@163.com'
WARN=2

DEVICE=`ls /sys/class/net | grep -v lo`
IP=$(ip addr show to 0.0.0.0/0 scope global | awk '/[[:space:]]inet /{ print gensub("/.*","","g",$2)}')
#IP=`ifconfig $DEVICE | grep "inet addr" | cut -f 2 -d ":" | cut -f 1 -d " "` 

#users=`uptime | cut -d ',' -f 2 | awk '{print $1}'`
tag=`uptime | awk -F'user' '{print $1}' | wc -w`
users=`uptime | awk '{print $'$tag'}'`

if [ $users -gt $WARN ];then
	echo "$IP 服务器用户数已经达到$users 个。请及时处理.$(date +%Y-%m-%d/%H:%M:%S)" >>$DIR-$(date +%Y-%m-%d).log	
	w | awk '/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/ {print $1,$2,$3}' >>$DIR-$(date +%Y-%m-%d).log
	echo "$IP 服务器用户数已经达到$users 个。请及时处理.$(date +%Y-%m-%d/%H:%M:%S)" | mail -s "$IP 服务器用户登录警告！" $MUSER
else	
	echo "$IP 服务器当前用户登录数是$users 个。情况正常.$(date +%Y-%m-%d/%H:%M:%S)" >>$DIR-$(date +%Y-%m-%d).log	
fi