Mailinglist Archive: opensuse (3378 mails)

[Ewan Leith <ewan@xxxxxxxxxxxxx>]

The not at all confusing multiple crontab system that linux uses is part
of your problem here.

The line:

0 19 * * * root /usr/bin/backup

would work if it was in a file named /etc/cron.d/backup all on its own.

but in the normal cron system which exists in the "real" Unix world and
which the linux system is backwards compatible with would use

0 19 * * * /usr/bin/backup

which would be placed alongside all the other root cron jobs in the file
/var/spool/cron/tabs/root (crontab -e to open it in your default
editor).

If you use crontab -e then when you save the file the cron task will
reread the file, otherwise you might need to do a kill -HUP of it to
read in the changes.

If you have a look in /etc/ you'll also find about 5 other
cron.something directories which are run from a main /etc/crontab file
at varying times

Simple, isn't it? :)

Ewan

On Mon, 2002-04-01 at 13:52, Richard Ibbotson wrote:
> Hi
> 
> I'm trying to understand the syntax for a cron job that I'd like to 
> run once a day.   I've put a script into /usr/bin which will create a 
> tape archive once a day and then drop it into a CD with CD-Record.
> 
> The script works fine but I can't get cron to run the script which is 
> called backup and is in /usr/bin/backup.  Would the syntax be 
> something like this to run at 7.00 p.m. at night ? ...
> 
> 14 0    * * *   root   /usr/bin/backup
> 
> Probably not but some help would be welcome.  Read the man pages and 
> other docs.   Didn't make a lot of sense to me.
> 
> Thank you
> 
> 
> -- 
> Richard
> 
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