You must be careful not to match lines that are not consecutive. 
use strict;
use warnings;
my $string =
     "foo LAST\n"
    ." blftz\n"
    ."LINE fum\n"
    ;
print "MATCH\n" if ($string =~ m/LAST$ .* ^LINE/xms) ;

[download]

You could solve this with: 

print "MATCH\n" if ($string =~ m/LAST$ ..? ^LINE/xms) ;

[download]
Bill

In reply to Re^3: Disambuating $ in (especially /m) regexps by BillKSmith
in thread Disambuating $ in (especially /m) regexps by tlhackque

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