I don't know exactly what you want to appear in FILE, but perhaps something like this would work for you? 
foreach ( 0200 .. 0377 ) {
    printf "%d , %o , %x: ", $_, $_, $_;
    print chr $_, "\n";
}

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Is that what you meant?

In reply to Re: Printing octal characters by btrott
in thread Printing octal characters by markguy

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