You have one of the following two problems:
Problem scenario #1
Your GCP startup-script is not working. You do not know why. What should you do?
OR
Problem scenario #2
A bash script is not working. It stops executing after a certain line. There are few clues as to what is wrong.
Solution
Did you copy the script from a webpage? If so the root cause could be the web page you copied it from used a slightly different character for the double quotes. Left double quotation or right double quotation marks will cause a problem. Make sure the quotes are not ” or “. You want just regular quotes like this ".
Notepad, Notepad++, and vi support different double quotes (left, right and straight). Be careful to not use ” or “ unless you know what you are doing in programming. You normally want to use ".
See also this posting.