Jeff Schwab wrote:
> Misha Mistral wrote:
>> Hi everyone.
>>
>> I have a problem with this command:
>>
>> @arp_table = `arp -n`
>>
>> When I execute it on console, all is perfect,
> Are you passing arp any other arguments?  On OS X, arp -n just prints a
> help message to stderr.
> 
>> Where is the mistake ?
>>   
> 
> If arp -n may be printing to stderr, rather than stdout.  Try:
> 
> @arp_table = `arp -n 2>&1`

Thank you for your reply.
The problem was very silly. The user that execute the rails script is 
www-data, and the arp command isn't in the user's PATH variable. There 
was, also, a permission problem. I've installed sudo and I've solved.
-- 
Posted via http://www.ruby-forum.com/.

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "Ruby 
on Rails: Talk" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to 
[email protected]
For more options, visit this group at 
http://groups.google.com/group/rubyonrails-talk?hl=en
-~----------~----~----~----~------~----~------~--~---

Reply via email to