on *:text:!list?:#yourchannel:{
var %file = lists\list.txt
if ($+(%,rules.timer,$nick)) { return }
if ($ini(%file, $2)) {
.play -nm1t $+ $2 $nick %file
set -u10 %rules.timer $+ $nick On
}
}
Although this example won't take the format '!listA', but '!list A'..