You may find useful the lexical scope of file handle: 
...
{
        open my $rh, "./read_file" or die $!;
        open my $wh, ">> ./write_file" or die $!;
        print $wh $_ while <$rh>
}
...

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In reply to Re: Add Contents At last in a File by sh1tn
in thread Add Contents At last in a File by swift

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