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/sbin/service crond start //Æô¶¯·þÎñ 
/sbin/service crond stop //¹Ø±Õ·þÎñ 
/sbin/service crond restart //ÖØÆô·þÎñ 
/sbin/service crond reload //ÖØÐÂÔØÈëÅäÖà
//=========================================================================
# Use the hash sign to prefix a comment
# +---------------- minute (0 - 59)
# |  +------------- hour (0 - 23)
# |  |  +---------- day of month (1 - 31)
# |  |  |  +------- month (1 - 12)
# |  |  |  |  +---- day of week (0 - 7) (Sunday=0 or 7)
# |  |  |  |  |
# *  *  *  *  *  command to be executed
//=============================================================================
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ÔÚ/etc/rc.d/rc.localÕâ¸ö½Å±¾µÄĩβ¼ÓÉÏ£º 
/sbin/service crond start 
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crontab -u //É趨ij¸öÓû§µÄcron·þÎñ£¬Ò»°ãrootÓû§ÔÚÖ´ÐÐÕâ¸öÃüÁîµÄʱºòÐèÒª´Ë²ÎÊý 
crontab -l //Áгöij¸öÓû§cron·þÎñµÄÏêϸÄÚÈÝ 
crontab -r //ɾ³ýû¸öÓû§µÄcron·þÎñ 
crontab -e //±à¼­Ä³¸öÓû§µÄcron·þÎñ 
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crontab -u root -l 
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crontab -u fred -r 
Ôڱ༭cron·þÎñʱ£¬±à¼­µÄÄÚÈÝÓÐһЩ¸ñʽºÍÔ¼¶¨£¬ÊäÈ룺 
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crontab -u root -e 
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*/1 * * * * ls >> /tmp/ls.txt 
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Ten Powerful Linux Commands

Today is the last day in 2009, I have no idea what should I do but just want to pray that my family, relatives and bosom  friends would have a sweet life in the next year. Linux is a 2nd OS in my life, there are always something new can make me  feel awesome, so I think that with continuou ......
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