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Closed 9 years ago.
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I would like a cronjob that runs every 5min with the condition that it doesn't start at time 0.
Current schedule is:
*/5 * * * *
However, this will kick off the script at 00:00. I need something like (5-60)/5 * * * *
Thanks!
I'm not sure there is a way to do this in cron. You might be better off leaving the schedule as is, and checking the time in the beginning of your script, and using a condition to exit the script if it is not supposed to run at that time.
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Closed 2 years ago.
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I am attempting to run a cron job every minute between 7AM and 12PM the expression I am attempting to use is as follows:
*/1 7-24 * * *
which doesn't appear to run correctly. I am fairly new to writing such expressions, could anyone point me in the right direction for what I am trying to achieve
If you mean every minute between 7:00 and 12:00 (12pm, noon), use this:
* 7-12 * * *
If you want every minute between 7:00 and 24:00 (12am, midnight), use this:
* 7 * * *
Other combinations you can try here: crontab guru
First star already means every minute, so there is no need to manipulate this further.
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Closed 2 years ago.
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What would be the cron expression for "nth second of every minute"?
For example, for every 5th second of every minute, the cron would run at 1:00:05, 1:01:05, 1:02:05 and so on.. 24x7.
I could not find any documentation for achieving this.
Thanks in advance!
This functionality is not available out of the box. What you could do is prepend your command with sleep, so it would be:
sleep 5 && /app/script.sh
Figured it out. The cron expression would be.
5 * 0 ? * *
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Closed 6 years ago.
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I want to run cron job every 2 hours In the X minute
Example:
every 2 hours In the 24 minute
00:24
02:24
04:24
etc.
Put your desired minute in the minute column, and then use */2 in the hour column to get it to run every two hours.
24 */2 * * * <your command>
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Closed 5 years ago.
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I don't have a box to test a cron job so I am posting it here.
I want to run a job every hour between 6 am to 18:00.This is what I have tried
0 6-18/1 * * * <command>
and
0 6-18 * * * <command>
Which one is the correct way of achieving it
Both should work, but I would probably use the second one.
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Closed 1 year ago.
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I need to quickly and temporarily disable a particular job in crontab under linux. How can I do that?
The quickest way would be to edit the crontab file (which can be done by typing crontab -e) and simply comment the job you want disabled. Comment lines in crontab start with a #.
0 0 1 * * this_job_i_want.sh
# uncomment below to enable
# 0 0 2 * * this_job_i_dont_want.sh
Simply edit your cron time to run every February 30. ;)
* * 30 2 * this_job_will_never_run.sh
This is especially helpful for those using a GUI to manage their cronjobs (i.e. cPanel, Plesk, etc.) and don't have access to the actual cron file.