1*9a7741deSElliott Hughes {$1=$2; print} 2*9a7741deSElliott Hughes 3*9a7741deSElliott Hughes # this should print nothing for an empty input line 4*9a7741deSElliott Hughes # since it has only referred to $2, not created it, 5*9a7741deSElliott Hughes # and thus only $1 exists (and it's null). 6*9a7741deSElliott Hughes 7*9a7741deSElliott Hughes # is this right??? 8