[Nagiosplug-devel] Re: Perl subroutine

[Subhendu Ghosh]

Please post to the regular list, not admin.

-sg

On Fri, 30 May 2003, Jan van den Berg wrote:

> Hi there,
> 
>  
> 
> I don't if this is the right place here, but I have a question about a
> plug-in I'm developing.
> 
>  
> 
> See the following Perl sub-routine
> 
>  
> 
> sub get_alert
> 
>         {
> 
>         local @ARGV = '/var/log/alert';
> 
>         my @last8;
> 
>   
> 
>         while (<>) {
> 
>                 push @last8, $_;
> 
>                 shift @last8 while @last8 > 8;
> 
>                         }
> 
>                         my $line = $last8[-6];
> 
>                         my $line =~ y/[,'"()<>]:;0123456789*//d;
> 
> 
>                         print $line;   
> 
>                         #print "test";
> 
>         }
> 
>  
> 
> So what this does is, get the 8 before last line from a log file, strips
> this line from meta-characters and print out a clean line of text. When
> I run this command-line: no problem. However Nagios says there is no
> output! But when I uncomment the print "test"; it prints this out nicely
> in Nagios... so the subroutine is okay, and the print statement is okay.
> 
>  (I also tried using quotes around "$line" but that didn't work).
> 
>  
> 
> So what am I doing wrong here?
> 
>  
> 
> Please help.
> 
>  
> 
> Jan van den Berg
> 
> 

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