在auth.log文件中检查最近10分钟（实际时间）的登录活动？

I have a cronjob that executes a bash file every 10 min. The bash file contains a Curl command that sends me a sms if var/log/auth.log file contains any lines with "Accepted password for". (obviously the if condition is true every time).I have a cronjob that executes a bash file ever