unicomp key mapping

#! /bin/sh
# make sure dir for keyboard mapping exists
mkdir -p "$HOME"'/.config/xkb/keymap'
# Get ID of Unicomp board if present
UNICOMPID="$(xinput -list|grep 'Unicomp Inc U' | awk -F'=' '{ print $2 }'| awk '{ print $1 }')"
if [ "$UNICOMPID" ]; then
  echo 'Unicomp board ID: '"$UNICOMPID"
  setxkbmap -device "$UNICOMPID" -print | grep -q 'swap_ralt_rwin'
  if [ "$?" -ne 0 ]; then # swap_ralt_rwin not already set; proceed.
    echo 'Running xkbcomp'
    # make menu key == compose, right win <-> right alt swap
    setxkbmap -device "$UNICOMPID" -print | sed -e '/xkb_symbols/s/"[[:space:]]/+compose\(menu\)+altwin\(swap_ralt_rwin\)&/' > "$HOME"'/.config/xkb/keymap/unicomp'
    # right win <-> right alt swap only
    # setxkbmap -device "$UNICOMPID" -print | sed -e '/xkb_symbols/s/"[[:space:]]/+compose\(menu\)+altwin\(swap_ralt_rwin\)&/' > "$HOME"'/.config/xkb/keymap/unicomp'
    # for debugging (log messages) use -w10 instead of -w0:
    xkbcomp -i "$UNICOMPID" -w0 -I"$HOME"'/.config/xkb' "$HOME"'/.config/xkb/keymap/unicomp' "$DISPLAY"
  else
    echo "Detected 'swap_ralt_rwin' already present, skipping xkbcomp."
  fi
else
  echo 'Unicomp keyboard not detected.'
fi