How do I run a cron job as a root?
6 Answers. Yes, just add it to the root users’ crontab; run the crontab -e command. The places cron stores its files can be a little bizzare, so use the crontab -e command which will make sure it’s in the right place, and I believe it checks the syntax.
Does cron job run as root?
You can usually run cron jobs as root without any issues. Most system maintenance jobs will need to be run root or super user anyways. However it is possible for each user in the system to have their own crontab or cron jobs.
Does cron run as root Ubuntu?
Cron is a system daemon used to execute desired tasks (in the background) at designated times. It is edited using the crontab command. The commands in the crontab file (and their run times) are checked by the cron daemon, which executes them in the system background. Each user (including root) has a crontab file.
How to run cron jobs as a specific user other than root?
If you are the super user then you can also modify or create the cron jobs of other users. The crontab command line option -u allows you to specify an username and edit the jobs of that user. To modify the cron jobs for user tom, use the following command. $ crontab -u tom -e.
Which is better root crontab or root Cron?
Root’s crontab OTOH is practically un-maintenable by anything other than humans. So in short, for system stuff you can use /etc/cron.*. If there’s something you would like the root user to do then use root’s crontab. /etc/crontab should be left untouched and managed by a package.
Why does the cron daemon run as root?
The cron daemon runs as root so it can read the directory’s contents since only the root user has access to this directory. It would be a serious security violation for other users to access /var/spool/cron and read the crontab entries for other users on the system.
Which is the command that works with cron?
The cron daemon ( crond) is a system-managed executable that runs in memory with which users may schedule tasks. The user command to work with the cron service is crontab (cron table).