每6小时在linux上运行cron作业 [英] Running cron job on linux every 6 hours

问题描述

如何每天6小时运行命令？尝试不起作用：

  / 6 * * * * * mycommand 
  pre> 
 
解决方案
您忘记了 * 字段，这是您需要关心的时间
  0 * / 6 * * * / path / to / mycommand 
  
这意味着从0开始每隔6小时，即在0,6,12和18小时， 
  0 0,6,12,18 * * * / path / to / mycommand 
  
 
How can I run command every six hours every day? Tried this not working :
/6 * * * * *  mycommand

解决方案
You forgot a * ,and you've too many fields, and it's the hour you need to care about
0 */6 * * * /path/to/mycommand
This means every 6th hour starting from 0, i.e. at hour 0, 6, 12 and 18 Which you could write as 
0 0,6,12,18 * * * /path/to/mycommand


                        
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