ROS自动系统备份脚本

每隔2天，在01：30自动备份脚本：

/system scheduler
add disabled=no interval=2d name=autobak on-event=\
"/ file remove autobak.backup\r\
\n/ system backup save name=autobak" policy=\
ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive,api \
start-date=jan/04/2013 start-time=01:30:00