Re: How can I prevent cron from emailig some jobs output

Re: How can I prevent cron from emailig some jobs output

[Mikhail Romanenko]

20.01.03 10:43:50, terry white <twhite@aniota.com> wrote:

>on "1-20-2003" "Mikhail Romanenko" writ:
>
>: Man cron reads: "... When executing commands, any output is
>: mailed to  the  owner of  the crontab ...". Does it mean cron
>: have no features to prevent such mailing or there is some way
>: to do it however?
>
>... what i tend to see from 'cron', are the errors it encounters.
>
>    are you seeing something different ...

You are right, it emails stderr output, that is why ... >/dev/null
(which I tried first without success) does not help.
... 2>/dev/null does the job.

Thank you guys for your help.
Mikhail.

Re: How can I prevent cron from emailig some jobs output

[Toby Fisher]

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On Mon, 20 Jan 2003, Mikhail Romanenko wrote:

> I would like some cron jobs output do not be reported through
> email.
>
> Man cron reads: "... When executing commands, any output is
> mailed to  the  owner of  the crontab ...". Does it mean cron
> have no features to prevent such mailing or there is some way
> to do it however?

Strictly speaking, the cron man page is correct, it doesn't have a way to
redirect output, but your shell does.

For example:

0 4 * * * /usr/bin/testscrip 2>&1 >/dev/null

This runs the script, redirects standard error to standard out, then
redirects standard out to /dev/null.

This should do what you want.
This is, of course, using Bash or similar.  If you're using Csh then I'm
afraid I can't help you.

HTH

- -- 
Toby Fisher	Email: toby@tjfisher.co.uk
Tel.: +44(0)1480 417272	Mobile: +44(0)7974 363239
ICQ: #61744808
   Please avoid sending me Word or PowerPoint attachments.
   See http://www.fsf.org/philosophy/no-word-attachments.html

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Re: How can I prevent cron from emailig some jobs output

[Glynn Clements]

Mikhail Romanenko wrote:

> I would like some cron jobs output do not be reported through
> email.
> 
> Man cron reads: "... When executing commands, any output is
> mailed to  the  owner of  the crontab ...". Does it mean cron
> have no features to prevent such mailing or there is some way
> to do it however?

If you redirect the command's output to /dev/null, there won't be any
output, hence no email.

-- 
Glynn Clements <glynn.clements@virgin.net>

Re: How can I prevent cron from emailig some jobs output

[terry white]

on "1-20-2003" "Mikhail Romanenko" writ:

: Man cron reads: "... When executing commands, any output is
: mailed to  the  owner of  the crontab ...". Does it mean cron
: have no features to prevent such mailing or there is some way
: to do it however?

... what i tend to see from 'cron', are the errors it encounters.

    are you seeing something different ...


-- 
... i'm a man, but i can change,
    if i have to , i guess ...

How can I prevent cron from emailig some jobs output

[Mikhail Romanenko]

I would like some cron jobs output do not be reported through
email.

Man cron reads: "... When executing commands, any output is
mailed to  the  owner of  the crontab ...". Does it mean cron
have no features to prevent such mailing or there is some way
to do it however?

Of couse, I can do it using procmail, but if cron has such a
feature it would be better to use it instead of procmail or
another external program.

I use:
debian woody
kernel 2.4.18 custom
libc6 2.3.1-5
cron 3.0pl1-73

Thank you, Mikhail.