How to list gradle project properties?

defaultTasks 'clean', 'run'
						
task clean << {
        println 'Default Task - Cleaning!'
}
task run << {
        println 'Default Task - Running!'
}
task mySpecTask << {
        println "I'm not a default task!"
}

java2novice$ gradle properties
:properties

------------------------------------------------------------
Root project
------------------------------------------------------------

allprojects: [root project 'gradle_tests']
ant: [email protected]
antBuilderFactory: [email protected]
artifacts: [email protected]ba380
asDynamicObject: [email protected]
buildDir: /Users/java2novice/gradle_tests/build
buildFile: /Users/java2novice/gradle_tests/build.gradle
buildScriptSource: [email protected]
buildscript: [email protected]b7e0
childProjects: {}
class: class org.gradle.api.internal.project.DefaultProject_Decorated
classLoaderScope: [email protected]8c9e870
clean: task ':clean'
components: []
configurations: []
convention: [email protected]
defaultTasks: [clean, run]
depth: 0
description: null
ext: [email protected]67ee75a5
extensions: [email protected]
fileOperations: [email protected]
fileResolver: [email protected]
gradle: build 'gradle_tests'
group: 
logger: [email protected]
logging: [email protected]
modelRegistry: [email protected]
module: [email protected]
mySpecTask: task ':mySpecTask'
name: gradle_tests
parent: null
parentIdentifier: null
path: :
plugins: [[email protected]]
processOperations: [email protected]
project: root project 'gradle_tests'
projectDir: /Users/java2novice/gradle_tests
projectEvaluationBroadcaster: ProjectEvaluationListener broadcast
projectEvaluator: [email protected]a08
projectRegistry: [email protected]
properties: {...}
repositories: []
resources: [email protected]d
rootDir: /Users/java2novice/gradle_tests
rootProject: root project 'gradle_tests'
run: task ':run'
scriptPluginFactory: [email protected]
serviceRegistryFactory: [email protected]71
services: ProjectScopeServices
standardOutputCapture: [email protected]
state: project state 'EXECUTED'
status: release
subprojects: []
tasks: [task ':clean', task ':mySpecTask', task ':properties', task ':run']
version: unspecified

BUILD SUCCESSFUL

Total time: 1.831 secs