It would be a lot more accurate to write two different expressions, one for each OS and then just have your script check which OS it is running on and use the appropriate regex. 

$sunifconfig=qr/blahblahblah/;
$linuxifconfig=qr/blahblahblah/;

if ($^O eq "linux"){
$ifconfigoutput=~/$linuxifconfig/;
}
else
{
$ifconfigoutput=~/$sunifconfig/;
}

[download]

*That code is untested.

Fellow monks, I don't know if using the $^O ($OSNAME) variable is the right way to go here. Feel free to comment.

HTH

In reply to Re: patern matching difficulties, in two cases by pzbagel
in thread pattern matching difficulties, in two cases by jcpunk

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