1#!/bin/rc 2 3sed ' 4 s/[ ]+$// 5 / /!d 6 /, /{; h; s/,.*//; p; g; s/ .*, / /; } 7' $1 | 8sed ' 9 /\(/{; h; s/\([^)]+\)//; p; g; s/[()]//g; } 10' | 11sed ' 12 s/ +/ / 13 s/[ ]+$// 14 s/ +/ /g 15' 16