[ubuntu-uk] Scheduling a reboot of Ubuntu?
neuro at well.com
Mon Jun 15 14:06:55 BST 2009
Alex Birchall wrote:
> I'd like to schedule a reboot of my Ubuntu server.
> When I type sudo crontab -l at the prompt, the following is displayed:
> #m h dom mon dow command
> 40 12 * * 0-7 eprints reboot
> As I understand it, this should mean that at 40 minutes past 12 each day
> the user eprints will issue the command reboot.
No, it means Sunday through Sunday (0 and 7 both mean Sunday for day of
week), at 20 to 1 in the afternoon (crontab uses the 24 hour clock), the
command 'eprints reboot' will be attempted. If you don't have a command
'eprints', it will fail. Check root's mailbox for more details of the
error output, and check man 5 crontab for more details of how the
crontab file works.
> The problem is, nothing appears to be happening.
See above :)
> Do I need to specify the user?
in a user's crontab? no. user specification for jobs goes into
/etc/crontab, which is maybe what's confusing you. Again, see man 5
crontab for more.
> Should the entries be separated by spaces, or tabs?
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