How to pass parameters or arguments into a gradle task

Question

I have a gradle build script into which I am trying to include Eric Wendelin\'s css plugin - http://eriwen.github.io/gradle-css-plugin/

Its easy enough to implement,

Answer 1

Its nothing more easy.

run command: ./gradlew clean -PjobId=9999

and

in gradle use: println(project.gradle.startParameter.projectProperties)

You will get clue.