Yeah I thought so. So did you wonder: "how do I know what I'm installing?"

If I were to put sudo rm -rf / in this script, would you type your password when prompted? Who are you trusting? How do you know that the webserver that hosts that script is secured with a better password than 123456 and you're not downloading some spyware?

Pro tip: When someone tells you to paste curl ... | bash, remove the | bash. You may be able to save the script with -o <yourinstallfile> and can then later call it, after you looked at it to check what it's doing, with bash <yourinstallfile>.