Now, how can I make this so I can use shift,

What's wrong with the for version?

map and grep lend themselves well here: 

sub alter {   
    return
        map uc,
        grep is_name($_),
        @_;
}

[download]

In reply to Re^3: using shift and $_ in loop by ikegami
in thread using shift and $_ in loop by leocharre

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