You will need somewhere for your project to reside, create a directory somewhere and start a shell in that directory.
On your command line, execute the following Maven goal to create simple maven project:
mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

To create jbehave maven project :
mvn archetype:generate -Dfilter=org.jbehave:jbehave