Awk array iteration for multi-dimensional arrays

Question

Awk offers associative indexing for array processing. Elements of 1 dimensional array can be iterated:

e.g.

for(index in arr1)
  print \"arr1[\" inde         


        

Answer 1

The current versions of gawk (the gnu awk, default in linux, and possible to install everywhere you want), has real multidimensional arrays.

for(b in a)
   for(c in a[b])
      print a[b][c], c , b

See also function isarray()