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- How do I set up a Cron job? - Ask Ubuntu
I want to schedule a task to run on a regular basis and have heard that Cron is the way to do this How do I add Cron jobs in Ubuntu?
- cron - Where is the user crontab stored? - Ask Ubuntu
If so, you can get a "copy" of your crontab file by doing crontab -l Pipe that to a file to get a "backup": crontab -l > my-crontab Then you can edit that my-crontab file to add or modify entries, and then "install" it by giving it to crontab: crontab my-crontab This does the same syntax checking as crontab -e
- cron - Verify if crontab works - Ask Ubuntu
Although very rare, sometimes cron stops working properly even though the service is running Here is how to verify that crond is running and stop start the service Using systemctl: systemctl status cron systemctl restart cron Older methods: On CentOS and other Red Hat-based systems: service crond status service crond stop service crond start On Ubuntu and other Debian-based systems: service
- cron - Why crontab scripts are not working? - Ask Ubuntu
Often, crontab scripts are not executed on schedule or as expected There are numerous reasons for that: wrong crontab notation permissions problem environment variables This community wiki aims to
- What is the correct way to edit a crontab file? - Ask Ubuntu
crontab -e lets you edit your user crontab without sudo The user crontabs are in var spool cron crontabs which is a directory that cannot be accessed without superuser permission (but in such a way that once cron drops privileges it's still able to read it) Even if you do use sudo to try and edit the file directly, you see a big warning at the top, "DO NOT EDIT THIS FILE" - the file is
- cron - run script after reboot - Ask Ubuntu
2 Use sudo crontab e When you want a script to run with admin privilege via cron, do not put sudo in the script Remove the existing line using crontab -e Then use the command: sudo crontab -e Then add the following line in the file: @reboot home user project script sh where the script sh should look like: #! bin bash cd full path to
- 644 Permission needed for etc cron. allow, workaround?
The end result is that the etc cron allow file is readable by all users in the crontab group, which is necessary when cron allow is used to restrict cron to certain users
- cron - Running two commands in crontab - Ask Ubuntu
10 I have this line in my crontab file * 1 * * * * espeak 'foo' espeak 'bar' But only half of it, first command gets executed every minute While when I write this in the terminal it works like a charm Is there a different way to execute 2 commands in the same line in the crontab file ?
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