1 1 10.9 Exercises 1 ============== 1 1 1. In ⇒Empty Files, we presented the 'zerofile.awk' program, 1 which made use of 'gawk''s 'ARGIND' variable. Can this problem be 1 solved without relying on 'ARGIND'? If so, how? 1 1 2. As a related challenge, revise that code to handle the case where 1 an intervening value in 'ARGV' is a variable assignment. 1