gawk: Library Exercises

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