pwalk パイプで渡した標準入力をawkより手軽にゴニョゴニョ出来る HowToUse $ cat example.txt | pwalk "echo %1" a,b,c b,c,a c,a,b $ cat example.txt | pwalk -S "," "echo %1" a b c $ cat example.txt | pwalk -S "," "echo %3 %1" c a a b b c