[news.eclipse.technology.m2e] Meaning of different profiles (install, pa

["mlt" <ddd@xxxxxxx>]

I have read through:

http://www.sonatype.com/products/maven/documentation/book-defguide

but have not found any precise definition on what the different build 
profiles actually do besides 'test':

"You run Maven tests whenever you run mvn package or mvn install. If you
would like to run all the lifecycle phases up to and including the test 
phase, run
mvn test:"

I know this is very basic info for most of you guys but where do I find 
documentation on what:

mvn package
mvn install
mvn build
mvn clean

etc. actually does?