Touchegg/Calibration

#!/bin/bash
a=0
dbus-monitor --session "type='signal',interface='org.freedesktop.ScreenSaver'" | \
( while true
    do read X

    if echo $X | grep "boolean false" &> /dev/null; then
       if [ "$a" -eq 0 ]
        then
        xinput --map-to-output 'Advanced Silicon S.A CoolTouch(TM) System' HDMI2
        if !  pgrep -x "touchegg" > /dev/null
        then
        touchegg %U
        fi
        a=1
     fi

    fi

    done )