linux shell监控登陆的脚本

linux shell 记录每个用户的登陆情况,结合crontab定期的发送给管理员

 

#!/bin/bash

username=`whoami`

time=`date +%y-%m-%d\ %H:%M:%S`

terminal=`ps | grep bash | grep -v grep | awk '{print $2}'`

location=`w | grep "$terminal" | awk '{print $3}'`

if [[ "$location" =~ "-" ]] || [[ "$location" =~ ^":" ]]

then

        location='localhost'

echo -e "$username\t$location\t$time" >> /var/log/login.info

 

crontab -e

* 16 * * */5   mail -s "user info " [email protected] < /var/log/login.info