哪位 大侠,来帮忙看一下,我的solaris mail 解释,一下,下面什么意思

哪位 大侠,来帮忙看一下,我的solaris mail
解释,一下,下面什么意思
Your "cron" job on M2M-APP-3
/export/home/m2m/log_bak/log_bak.sh >> /export/home/m2m/log_bak/log_bak.log

还有,  怎样清理 mail
============================================================================
From: m2m@M2M-APP-3
Message-Id: <201102091806.p19I67ww016661@M2M-APP-3>
To: m2m@M2M-APP-3
Subject: Output from "cron" command
Content-Length: 316
Your "cron" job on M2M-APP-3
/export/home/m2m/log_bak/log_bak.sh >> /export/home/m2m/log_bak/log_bak.log
produced the following output:
a ./bak_M2M_APP1_NWBack_M2M-APP-3_20110210/ 0K
a ./bak_M2M_APP1_NWBack_M2M-APP-3_20110210/connection-20110130135530.log
102401K
a ./bak_M2M_APP1_WMMPBack_M2M-APP-3_20110210/ 0K

说你的crontab作业运行了一下，运行后产生了这些消息

man mail
man mailx

清空root用户的邮件
#cd /var/mail
bash-2.05# ls -l
total 86278
-rw-rw----   1 root     mail           0 Mar  7 14:07 root
bash-2.05# cp /dev/null root