The second option provided is via the Software Development Kit Manager (SDKMAN!). It is utilized when you have to handle many versions of SDKs that are binary, such as Groovy. You can get SDKMAN! from sdkman.io and then install Spring Boot CLI with the commands in the first link provided, under this section.

For Linux machines, use the following command:

$ curl -s get.sdkman.io | bash 

Once SDKMAN! is installed, you can install Spring Boot's CLI as follows:

$ sdk install springboot
$ spring --version