I see tasks from directories /etc/cron.* are ran regulary, but when I
run "crontab -e" as root, the file is empty. Where are these tasks
schedualed? I am asking because I want to know at what time of the day
are tasks from cron.daily ran and how to change it.

Thanks.


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On Sat, Mar 10, 2007 at 12:49:19PM +0100, Marko Randjelovic wrote:
> I see tasks from directories /etc/cron.* are ran regulary, but when I
> run "crontab -e" as root, the file is empty. Where are these tasks
> schedualed? I am asking because I want to know at what time of the day
> are tasks from cron.daily ran and how to change it.

If I am not mistaken crontab -e edits root's crontab, however, according
to me, you are looking for /etc/crontab, aren't you ?

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Franck Joncourt wrote:
> On Sat, Mar 10, 2007 at 12:49:19PM +0100, Marko Randjelovic wrote:
>
>> I see tasks from directories /etc/cron.* are ran regulary, but when I
>> run "crontab -e" as root, the file is empty. Where are these tasks
>> schedualed? I am asking because I want to know at what time of the day
>> are tasks from cron.daily ran and how to change it.
>>
>
> If I am not mistaken crontab -e edits root's crontab, however, according
> to me, you are looking for /etc/crontab, aren't you ?
>
>
I thaught root's crontab is /etc/crontab. Thanks. Which command then to
run to edit this file (sometime ago I read it is not recommended to edit
it directly)?


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> >> I see tasks from directories /etc/cron.* are ran regulary, but when I
> >> run "crontab -e" as root, the file is empty. Where are these tasks
> >> schedualed? I am asking because I want to know at what time of the day
> >> are tasks from cron.daily ran and how to change it.
> >
> > If I am not mistaken crontab -e edits root's crontab, however, according
> > to me, you are looking for /etc/crontab, aren't you ?
>
> I thaught root's crontab is /etc/crontab. Thanks. Which command then to
> run to edit this file (sometime ago I read it is not recommended to edit
> it directly)?

You can edit it with any editor. If I remember well, this restriction exists
on other systems but Debian is not concerned.

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Cédric Lucantis

On Sat, Mar 10, 2007 at 01:15:18PM +0100, Marko Randjelovic wrote:
> Franck Joncourt wrote:
> >On Sat, Mar 10, 2007 at 12:49:19PM +0100, Marko Randjelovic wrote:
> >
> >>I see tasks from directories /etc/cron.* are ran regulary, but when I
> >>run "crontab -e" as root, the file is empty. Where are these tasks
> >>schedualed? I am asking because I want to know at what time of the day
> >>are tasks from cron.daily ran and how to change it.
> >>
> >
> >If I am not mistaken crontab -e edits root's crontab, however, according
> >to me, you are looking for /etc/crontab, aren't you ?
> >
> >
> I thaught root's crontab is /etc/crontab. Thanks. Which command then to
> run to edit this file (sometime ago I read it is not recommended to edit
> it directly)?
>

Looking at /etc/crontab you can see when cron.hourly and its friends
start. I think if you want to add some tasks for the root user, you can
add them to /etc/cron.d, /etc/cron.hourly ... according to your needs. I
would do this way.

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Marko Randjelovic <marel@sbb.co.yu> wrote:

> > If I am not mistaken crontab -e edits root's crontab, however,
> > according to me, you are looking for /etc/crontab, aren't you ?
> >
> >
> I thaught root's crontab is /etc/crontab. Thanks. Which command then
> to run to edit this file (sometime ago I read it is not recommended
> to edit it directly)?

From 'man crontab'

"Each user can have their own crontab, and though these are files
in /var/spool/cron/crontabs, they are not intended to be edited
directly."

No mention about /etc/crontab. Someone correct me if I'm wrong, but
AFAIU you are safe to edit it.

HTH,
Andrei
--
If you can't explain it simply, you don't understand it well enough.
(Albert Einstein)

On Sat, Mar 10, 2007 at 02:57:01PM +0200, Andrei Popescu wrote:
> Marko Randjelovic <marel@sbb.co.yu> wrote:
>
> > > If I am not mistaken crontab -e edits root's crontab, however,
> > > according to me, you are looking for /etc/crontab, aren't you ?
> > >
> > >
> > I thaught root's crontab is /etc/crontab. Thanks. Which command then
> > to run to edit this file (sometime ago I read it is not recommended
> > to edit it directly)?
>
> From 'man crontab'
>
> "Each user can have their own crontab, and though these are files
> in /var/spool/cron/crontabs, they are not intended to be edited
> directly."
>
> No mention about /etc/crontab. Someone correct me if I'm wrong, but
> AFAIU you are safe to edit it.


From 'man /etc/crontab' :

# /etc/crontab: system�wide crontab
# Unlike any other crontab you don’t have to run the ‘crontab’
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.

It seems you can do it !

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On 10.03.07 14:57, Andrei Popescu wrote:
> >From 'man crontab'
>
> "Each user can have their own crontab, and though these are files
> in /var/spool/cron/crontabs, they are not intended to be edited
> directly."
>
> No mention about /etc/crontab. Someone correct me if I'm wrong, but
> AFAIU you are safe to edit it.

try:
apropos crontab
man 5 crontab


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