On 11/23/2015 04:33 PM, anj patnaik wrote:
I am seeing a bizarre behavior. The command works fine when called
directly from prompt, but when invoked via cron, there is no output nor
mail.
This works fine:
script 2>&1 | tee /tmp/ff ; mailx -s "email" [email protected]
<mailto:[email protected]> < /tmp/ff
Now, I place the identical line in crontab file and the output file
/tmp/ff does not get generated.
Does the script run?
Remember cron has a limited environment. In you actual crontab line do
you have a complete path to 'script' or is the path in the crontab PATH.
To get your above code to run I had to do something like:
cat cron_txt.txt 2>&1 | tee /tmp/ff ; mailx -s "email" aklaver </tmp/ff
Note, no - before the email address(in this case a local address).
If you are doing this locally have yoy though about setting MAILTO in
the crontab and let cron do the mailing. Probably have to use pg_restore
-v ... if you are not already.
Inside script, i am running a pg_restore which dumps output to stdout.
The usage of tee is the only way to cause it to go into a file.
Any idea here? Thanks
On Mon, Nov 23, 2015 at 3:29 PM, Melvin Davidson <[email protected]
<mailto:[email protected]>> wrote:
You could also try tweaking the following attached backup script.
Caution, I wrote this quickly from a skeleton script and has not
been tested.
On Mon, Nov 23, 2015 at 3:21 PM, Tom Lane <[email protected]
<mailto:[email protected]>> wrote:
anj patnaik <[email protected] <mailto:[email protected]>> writes:
> My cron tab entry:
> 0 20 * * * db_backup.sh 1> /dev/null 2>&1 | mail -s "backup cron"
>[email protected] <mailto:[email protected]>
> I am re-directing stderr to stdout and then sending that to email.
Uh, read it again: you're redirecting stdout to /dev/null and then
redirecting stderr to go where stdout goes. So all output is
going to the bit bucket, not the pipe.
regards, tom lane
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