I need to add a cron job thru a script I run to set up a server. I am currently using Ubuntu. I can use crontab -e but that will open an editor to edit the current crontab. I want to do this programmatically. Is it possible to do so? 14 Answers 14
I would like to set a job to run daily in the root crontab. But I would like it to execute it from a particular directory so it can find all the files it needs, since the application has a bunch of relative paths. Anyway, can I tell crontab to run from a particular directory? … Read more
In crontab does the Day of the Week field run from 0 – 6 or 1 -7? I am seeing conflicting information on this. wikipedia states 0-6 and other sites I have seen are 1-7. Also what would be the implication or either using 0 or 7 incorrectly? i.e. would the cron still run? 3 … Read more
I’m trying to figure out how to run a crontab job every week on Sunday. I think the following should work, but I’m not sure if I understand correctly. Is the following correct? 5 8 * * 6 10 Answers 10
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Stack Overflow. Closed 8 years ago. Improve this question I need a crontab syntax which should execute a specific PHP script /var/www/html/a.php every minute. The execution on every … Read more
I have a crontab running every hour. The user running it has environment variabless in the .bash_profile that work when the user runs the job from the terminal, however, obviously these don’t get picked up by crontab when it runs. I’ve tried setting them in .profile and .bashrc but they still don’t seem to get … Read more
How to configure a cron job to run every night at 2:30? I know how to make it run at 2, but not 2:30. 6 Answers 6
I’m trying to create a cronjob to back up my database every night before something catastrophic happens. It looks like this command should meet my needs: 0 3 * * * pg_dump dbname | gzip > ~/backup/db/$(date +%Y-%m-%d).psql.gz Except after running that, it expects me to type in a password. I can’t do that if … Read more
