1BEGIN { 2 x = "A" 3 printf("%-39s\n", substr(x,1,39)) 4 print substr("abcdef", 0, 2) 5 print substr("abcdef", 2.3, 2) 6 print substr("abcdef", -1, 2) 7 print substr("abcdef", 1, 0) 8 print substr("abcdef", 1, -3) 9 print substr("abcdef", 1, 2.3) 10 print substr("", 1, 2) 11 print substr("abcdef", 5, 5) 12 print substr("abcdef", 7, 2) 13 exit (0) 14} 15