I have a cron job that I want to run at 8 minutes past the hour, at 18 minutes past the hour, at 28 minutes past the hour, and so on. I tried this but got an "invalid minute" error.
8/10 * * * * /home/snrub/file.php
Can this be done?
It sure can!
08,18,28,38,48,58 * * * * /home/snrub/file.php
Related
I want to send emails to clients every day between 17:00 to 20:00. I want to run my command every 10 minutes in this period.
So the script will be executed 6 times per hour. That's a total of 18 times.
Is this possible with the crontab? How should I write the syntax?
I think this should work:
0/10 17-19 * * * <cmd>
or:
0/10 17,18,19 * * * <cmd>
I am attempting to schedule a cron job for database backups using percona extra backup.
My cron job is in cron.d and looks as follows;
exec &>/var/tmp/cron.log
1 * * * * * secondstory_prod /var/opt/backup/percona_xtrabackup_incremental.sh > /var/tmp/cron.log
The error i receive when i try and force the jobs to run in the log file listed above is /etc/cron.d/db_backup_daily: line 2: 1: command not found
If i try to run the jobs forcefully with run-parts /etc/cron.d i get the above error.
What is strange is that if i navigate to the directory and run the percona_xtrabackup_incremental.sh file it works with no issues.
Please can someone help?
Thanks
Your problem is you have one too many * in your cron entry.
1 * * * * * secondstory_prod ..stuff..
should be
1 * * * * secondstory_prod ..stuff..
will run on every 1st minute of each hour every day (above). The general time entry format is:
* minute (0-59)
* hour (0-23)
* day of month (1-31)
* month (1-12)
* day of week (0-6) (0=Sunday)
I have a php script which crontab executes every 30 minutes, during off-peak hours around 2-7am I don't get much traffic and so I wish to not run the script during these hours.
I'm not sure how to make a cronjob that will do this as I would find it hard to test.
The cronjob I have at the moment looks like this
*/30 * * * * /usr/bin/php /var/www/update/inv.php
*/30 0-1,8-23 * * * /usr/bin/php /var/www/update/inv.php
the range is inclusive, so 0-1 will do 00:30, 01:30, then 8-23 will do 0830 to 2330
ref: http://team.macnn.com/drafts/crontab_defs.html
You can restrict the hours you want the job to run.
*/30 0,1,7-23 * * * /usr/bin/php /var/www/update/inv.php
The times will be every 30 minutes until 0130. It won't run at 0200. The next run will be at 0700 and then every 30 minutes.
There's quite a good article here on how to set up the cron:
http://en.wikipedia.org/wiki/Cron
I am trying to setup a cron job on a Ubuntu server. We want the cron job to run the script at certain times of the day and on some specific days of the week. For example, we want to setup a cron job that runs the script with the following sequence:
Execute the script every 2 minutes from 9 am to 2 pm during the weekdays.
This is what I have been able to do so far:
*/2 09-14 * * * /path_to_script
What should I do for the weekdays?
Same as you did for hours:
*/2 09-18 * * 1-5 /path_to_script
0 and 7 stand for Sunday
6 stands for Saturday
so, 1-5 means from Monday to Friday
You state 2pm in your requirement, hour range should end at 14 instead of 18 (which is 6pm).
*/2 9-14 * * 1-5 /path_to_script
man crontab
http://unixhelp.ed.ac.uk/CGI/man-cgi?crontab+5
In fact the last hour you want the script to run is 13:00 to 13:59, so you want:
*/2 9-13 * * 1-5 /path_to_script
meaning the first runtime will be 9:00, then 9:02, and so on until 13:58 which will be the last run as 14:00 is not included.
I want to run a php script every 10 minutes, between the hours of 9:30AM - 4:00PM
I googled before asking, and didn't have any success.
Anyone know how to do this? Or point me in the right direction?
Thank you
Try the following three lines in crontab
0,10,20,30,40,50 10-15 * * * # Every 10 minutes for the hours 10am - 3pm
0 16 * * * # 4pm
30,40,50 9 * * * # and 9:30, 9:40, 9:50
Run it from cron in every 10 minutes, check th date in PHP do nothing if it's outside the range.
*/10 * * * * /usr/bin/php /path/to/your/script.php