Running standalone reference application on linux

How do install standalone reference application on Linux os.

before you pick up to standalone,were you able to install the sdk?

Exactly I installed and confirmed with this command
mvn openmrs-sdk:help

After unzipping the folder for standalone ref app, am able to see to
openmrs-standalone.jar and
. Have tried to run ./ but it says Permission denied.

Have fixed th stuff by entering the directory of satandalone-ref-app as a super user and runninsg sh instead of ./ Have successfuly installed the application.
Thanks @herbert24