1*23f24377SWarner Losh {if (amount[$2] "" == "") item[++num] = $2; 2*23f24377SWarner Losh amount[$2] += $1 3*23f24377SWarner Losh } 4*23f24377SWarner LoshEND {for (i=1; i<=num; i++) 5*23f24377SWarner Losh print item[i], amount[item[i]] 6*23f24377SWarner Losh } 7