Re: [Bug-wget] Will "-O xxx" option ALWAYS create xxx file?

[Toni Verdu Carbo]

OK, solved!

It was not wget fault. I was executing the script every 3 minutes via cron,
and xxx files had always the same name. Then I was changing the name each time
according to some rules... In some rare situations, downloading the file was
taking more than 3 minutes, so next script execution was overwriting xxx
file giving to undesirable results.

I've solved it adding -T 120 to the the wget command and using a different
name for the xxx file on each invocation.

Thanks.

Toni

On Thu, 30 Sep 2010, Toni Verdu Carbo wrote:

>         Hi,
>
>         I'm using wget (v1.10.2 on Ubuntu 8.04 LTS server). Is it possible
> that using "-O xxx" option xxx file is NOT created??
>
>         I'm using wget in an cron script to periodically download some file
> with "wget -qO xxx url", and I was assuming that the file xxx would be
> ALWAYS created, regardless of the result of the download, and the code after
> wget was assuming that. So I was not doing any test to assure xxx did really
> exist. But from time to time it seems that wget fails to create the file and
> the following code reports "file xxx doesn't exist" type errors...
>
>         For instance:
>
>         wget -qO xxx "http://..."; # any URL
>         ls xxx
>
> most of times work, but sometimes it gives an error message "ls: cannot
> access xxx: No such file or directory". Does this make sense?
>
>         Of course I can add some test for the existence of the xxx file
> after wget use, but the question is: is there any situation where "wget -qO
> xxx ..." could NOT create file xxx, or the file should be created in ANY
> situation?
>
>         Thanks in advance,
>
>         Toni

--
Toni Verdu Carbo
Departament d'Arquitectura i Tecnologia de Computadors (ATC)
Departament d'Enginyeria Electrica, Electronica i Automatica (EEEA)
Escola Politecnica Superior (EPS)- Universitat de Girona (UdG)
Girona - Catalunya - Spain - Europe - Earth - Milky Way - Universe ;^D

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