hex2dat.php generated a .scr (not a screen saver) file based on input file and it's name.
Open your app/place you want to start
To record an action:
$ adb shell getevent > <file_name>
Press ctrl+c / stop the proccess when you end your task
To convert the file:
$ php hex2dat.php <file_name>
Upload into device sdcard (considering you have an sdcard):
$ adb push <file_name>.scr /sdcard/<new_file_name>
To play the recorded action:
$ adb shell sh /sdcard/<new_file_name>
$ adb shell getevent > home_button_press
Press the home button on the phone then ctrl+c/cancel this procces in $ terminal window
$ php hex2dat.php home_button_press
$ adb push home_button_press.scr /sdcard/home_button_press.scr
$ adb shell sh /sdcard/home_button_press.scr
And the home button was pressed :)