How to use newline in config files

[Jason Bodnar]

Finally figured it out. Control characters need to be shell escaped. So, in my
case, my check_command is:

check_command                   check_tcp!db.foo.com!3737!PING$'\cD'$'\n'!ACK

for a ^D^J (EOT EOL) sequence.





On Mon, 19 Dec 2005 12:46:29 -0600, Jason Bodnar wrote
> On Sun, 18 Dec 2005 10:08:37 +0100, Sebastian Kayser wrote
> > * Jason Bodnar <jason at shakabuku.org> wrote:
> > > I need to have a newline as an arguement for a check_command. \n doesn't
work.
> > > ^J does work. Hitting Enter and putting the rest on a separate line causes
> > > nagios to choke on the config file. How do you put include a newline in an
> > > arguement?
> > 
> > You could try to write a wrapper (with bash/perl/...) for your check
> > script which calls the relevant command with a newline. Thereafter 
> > you would define a check_command for your wrapper instead of the relevant
> > command itself.
> > 
> > But post some details on which command you want to be called on how you
> > have tried it 'til now, maybe there are other ways.
> 
> I have a service defined as so:
> 
> define service {
>  use                             generic-service
>  host_name                       db
>  service_description             AppServer
>  is_volatile                     0
>  check_period                    24x7
>  max_check_attempts              4
>  normal_check_interval           5
>  retry_check_interval            1
>  contact_groups                  admins
>  notification_interval           60
>  notification_period             24x7
>  check_command                   check_tcp!db.foo.com!3737!PING\n!ACK
> }
> 
> But that doesn't work even when using the command line like so:
> 
> $ /usr/lib/nagios/plugins/check_tcp -H db.foo.com -p 3737 -s 
> 'PING\n' -e 'ACK'
> 
> What does work is putting actuall newlines but you can't do that in 
> the config file. I remember reading about a character sequence 
> you're supposed to use for newlines in the config files but I can't 
> find it anywhere.
> 
> --
> Jason Bodnar
> jason at shakabuku.org
> http://www.shakabuku.org
> 
> UnWired Buyer. The best way to win on eBay. Period.
> http://www.unwiredbuyer.com
> 
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--
Jason Bodnar
jason at shakabuku.org
http://www.shakabuku.org

UnWired Buyer. The best way to win on eBay. Period.
http://www.unwiredbuyer.com



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