How to set a cron job to run at a exact time

Question

I have a cron job that runs once a day  But I would like to make it run at midnight or other time exactly

User · Answer

check out   http   www thesitewizard com general set-cron-job shtml  for the specifics of setting your crontab directives    45 10         will run in the 10th hour   45th minute of every day   for midnight    maybe   0 0

User · Answer

My use case is that I m on a metered account  Data transfer is limited on weekdays  Mon - Fri  from 6am - 6pm  I am using bandwidth limiting  but somehow  data still slips through  about 1GB per day   I strongly suspected it s sickrage or sickbeard  doing a high amount of searches  My download machine is called  download   The following was my solution  using the above for starting  and stopping the download VM  using KVM     Stop download Mon-Fri  6am 0 6     1 2 3 4 5 root          virsh shutdown download   Start download Mon-Fri  6pm 0 18     1 2 3 4 5 root         virsh start download   I think this is correct  and hope it helps someone else too

User · Answer

You can also specify the exact values for each gr     0 2 10 12 14 16 18 20         It stands for 2h00  10h00  12h00 and so on  till 20h00   From the above answer  we have      The comma       means  and   If you are confused by the above line  remember that spaces are the field separators  not commas    And from  Wikipedia page                           command to be executed -    -    -    -    -                                                                                ----- day of week  0 - 7   0 or 7 are Sunday  or use names                     ---------- month  1 - 12               --------------- day of month  1 - 31         -------------------- hour  0 - 23   ------------------------- min  0 - 59    Hope it helps      --  EDIT    don t miss the 1st 0  zero  and the following space  it means  the minute zero   you can also set it to 15  the 15th minute  or expressions like   15  every minute divisible by 15  i e  0 15 30

[cron] How to set a cron job to run at a exact time?

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