You can find complete tutorials and sample applications in the spring-shell-samples repository:

A convenience script is provided to quickly launch any sample from the repository root:

Spring Shell Samples
====================
Select a sample to run:
  1) hello-world       — Simple greeting shell application
  2) non-interactive   — Non-interactive sample (runs 'hi' and exits)
  3) petclinic         — Spring PetClinic shell application
  4) secure-input      — Secure input / password prompt sample
  5) spring-boot       — Spring Boot-based shell application
Enter your choice [1-5]:

Enter the number corresponding to the sample you want to run and press Enter. The appropriate Maven command will be executed automatically.