old_contents: #!/bin/sh
  
  if [ ! -e /tmp/irssitail ]; then
      touch /tmp/irssitail
  fi
  
  tailf /tmp/irssitail | ./irc-chanformat.py | ./irc-chanshift.py | ./irssi-nameformat.py | ./irc-colorize.py >>/tmp/feed
  
new_contents: #!/bin/sh
  
  ./irc-chanformat.py | ./irc-chanshift.py | ./irssi-nameformat.py | ./irc-colorize.py
  
subject: make irssi.aclark.theme.py a simple pipe like base.aclark.theme.py