How big is your text file? gigs?

Have you tried using a step through debugger to see how far you get before the out of memory error? If you dont know how to use a step through debugger, toss a couple of these in your perl code. 
system("read -p \"Press any key\"");#unix
#or
system("pause");#windows

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In reply to Re: Out of Memory in Perl by bulk88
in thread Out of Memory in Perl by maheshkumar

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