#!/bin/rc
fn sigexit sigint sigquit sighup{
       rm -f /tmp/q[012].$pid
}
switch($#*){
case 0; cat >/tmp/q0.$pid
       inf=/tmp/q0.$pid
case 1; inf=$1
case *; echo Usage: $0 '[picture]' >/fd/2
       exit usage
}
fb/mcut $inf >/tmp/q1.$pid
fb/improve /tmp/q1.$pid $inf >/tmp/q2.$pid
fb/3to1 /tmp/q2.$pid $inf

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