as from those system calls will have extra \n on the end. That is if your wanting your output to be something like 0 0 0 0 If your wanting your output to be 0 0 0 0 then you might also try applying a substitute to the array

s/\s+/ /g for @h;
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how do i implement the above code - will i have to use an if statement or?? let me know if you need anymore help