The easiest was to prevent output of the offending line you be to put a conditional on your output. Perhaps changing print FH1 "$account\n"; to 
if ($account !~ /.{21}40[68]/) {
    print FH1 "$account\n";
}

[download]

There are a number of stylistic critiques I could give if you like. I would in particular point out you are using prototypes incorrectly - see Prototypes in perlsub.

In reply to Re: Removing element of an array by kennethk
in thread Removing element of an array by cesear

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