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grub安装实例教你怎样安装GRUB以及使用在红帽中遇到的问题！

# Sample crontab for root:
# crontab -e    <Edit crontab file>
# MIN HOUR DAY MONTH DAYOFWEEK   COMMAND
#
#0,5,10,15,20,25,30,35,40,45,50,55 * * * *	/usr/sbin/atrun 1> /dev/null 2> /dev/null
# This touches a filename in the temp directory so that you can see cron is
# working if the timestamp is current. Comment it out if it bugs you. :^)
#
# * * * * *       touch /tmp/.crond_running
#
# This updates the database for 'locate' every day:
#
#40 04 * * *       cd / ; updatedb 1> /dev/null 2> /dev/null