testing > cat t.pl
#! /usr/bin/perl
use strict;
use warnings;


my $mibtext = '"The number of excessive collisions, incremented for each
                frame that experienced 16 collisions during transmission and
                was aborted."';


if ( $mibtext =~ m/".*"/s ) {
    print "MATCH\n";
}

 testing > perl t.pl
MATCH