You should probably forget about using a separate @printrows variable as you are initializing it to contain only one value anyway. Why not just use the original $newhash{ IP }?

That's supposed to be an array reference anyway.

I think I might have a handle on what you are trying to do now...

my %newhash;

push @{ $newhash{IP} }, [ 'row 0, col 0', 'row 0, col 1' ];
push @{ $newhash{IP} }, [ 'row 1, col 0', 'row 1, col 1' ];

# $newhash{ IP } contains a reference to an array with two elements.
# Each element is itself a reference to an array with two elements. 
 
print $newhash{IP}->[0][0], "\n";    # row 0, col 0
print $newhash{IP}->[0][1], "\n";    # row 0, col 1
print $newhash{IP}->[1][0], "\n";    # row 1, col 0
print $newhash{IP}->[1][1], "\n";    # row 1, col 1
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-sauoq
"My two cents aren't worth a dime.";