How to install Spring Boot CLI 1.5.3 on Linux?

spring-boot-cli-linux.md

wget http://repo.spring.io/release/org/springframework/boot/spring-boot-cli/1.5.3.RELEASE/spring-boot-cli-1.5.3.RELEASE-bin.zip
unzip spring-boot-cli-1.5.3.RELEASE-bin.zip
rm -rf spring-boot-cli-1.5.3.RELEASE-bin.zip

sudo vim /etc/profile
export SPRING_HOME=/home/diego/bin/spring-1.5.3.RELEASE/
export PATH=$SPRING_HOME/bin:$PATH

source /etc/profile
touch app.groovy

@RestController
class WebApplication {

    @RequestMapping("/")
    String home() {
        "Hello World!"
    }

}

spring run app.groovy
curl http://localhost:8080/