Disable or enable the TrackPad on an IBM T450 laptop for Ubuntu.

track-pad.sh

#!/usr/bin/env bash

showHelp() {
  cat <<HELP
$0 [OPTIONS]

Enable or Disable the trackpad on T450 on Ubuntu.

Options:
  -h, --help     Print help screen
  -e, --enable   Enable track-pad
  -d, --disable  Disable track-pad
HELP
}

DEVISES=(
  "IBM TrackPoint"
  "Synaptics TouchPad"
)

id_of() {
  xinput list | grep "$1" | tr " " "X" | tr "=" " " | awk '{print $3}'
}

enable() {
  xinput set-prop "$(id_of "$1")" "Device Enabled" 1
}

disable() {
  xinput set-prop "$(id_of "$1")" "Device Enabled" 0
}

isEnabledString() {
  if xinput list-props "$(id_of "$1")" | grep "Device Enabled" | grep --quiet "0"; then
    echo "disable"
  else
    echo "enabled"
  fi
}

list() {
  echo "$1: $(isEnabledString "$1")"
}

enableDevises() {
  for device in "${DEVISES[@]}"
  do
    enable "$device"
  done
  listDevises
}

disableDevises() {
  for device in "${DEVISES[@]}"
  do
    disable "$device"
  done
  listDevises
}

listDevises() {
  for device in "${DEVISES[@]}"
  do
    list "$device"
  done
}

if [ -z "${1+x}" ]; then
   showHelp
elif [ "$1" == "--enable" ] || [ "$1" == "-e" ]; then
  enableDevises
elif [ "$1" == "--disable" ] || [ "$1" == "-d" ]; then
  disableDevises
else
  showHelp
fi