If the script is reporting errors, they may be going to stderr, but you’re only redirecting stdout. You can redirect stderr by adding 2>&1 to the command: * * * * * /var/www/dir/sh/mysql_dump.sh 2>&1 | mail -s “mysql_dump” [email protected]
I’m not entirely sure what you mean by “run my own cron tasks manually”. For cron specifically, you need access to crontab, which they can control, as they’re their servers. If you have another way of doing it, it would probably be fine, but bear in mind that your app is not tied to a … Read more
Yes, the solution you specified is correct. 0,5,55 * * * * command # run the command at the top of the hour, at # the 5 minute mark and at the 55 minute mark.
That’s not possible with a single expression in normal cron. The best you could do without modifying the code is: 0 0,3,6,9,12,15,18,21 * * * [cmd] 30 1,4,7,10,13,16,19,22 * * * [cmd] These might be compressible, depending on the version of cron you have to: 0 */3 * * * [cmd] 30 1-23/3 * * … Read more
0 0/10 * 1/1 * ? * Please see : http://www.cronmaker.com/
it is working in spring boot. @Scheduled(cron=”${cronExpression}”) private void testSchedule() { System.out.println(“Helloooo”); } in application.properties I have a property like this as below: cronExpression=* * * ? * *
Yes that is correct. Here is a quick chart you can use for future reference # * * * * * command to execute # ┬ ┬ ┬ ┬ ┬ # │ │ │ │ │ # │ │ │ │ │ # │ │ │ │ └───── day of week (0 – 6) (0 … Read more
cron is the name of the tool, crontab is generally the file that lists the jobs that cron will be executing, and those jobs are, surprise surprise, cronjobs.
1 Seconds 2 Minutes 3 Hours 4 Day-of-Month 5 Month 6 Day-of-Week 7 Year (optional field) So in your case: 0 0 0 * * ? This will fire at midnight, if you want to fire at noon: 0 0 12 * * ? Or both: 0 0 0,12 * * ? A good page … Read more
I recently (April 2018) installed and ran certbot (version 0.22.2) on an Ubuntu 16.04 server, and a renewal cron job was created automatically in /etc/cron.d/certbot. Here’s the cron job that was created: # /etc/cron.d/certbot: crontab entries for the certbot package # # Upstream recommends attempting renewal twice a day # # Eventually, this will be … Read more