gno/usr.bin/awk/tests/ch1p41.awk

$2 > 6 { n = n + 1; pay = pay + $2 * $3 }
END    { if (n > 0)
             print n, "employees, total pay is", pay,
                      "average pay is", pay/n
         else
             print "no employees are paid more than $6/hour"
       }