My objective is to install a jar file in a Maven repository. This post explains how to do an install with MVN.
But but since I have Maven embedded in Eclipse, I don\
From eclipse you can do:
Run -> Run Configurations -> Maven Build (double click)
Your goal is install:install-file
And also you should fill parameters' keys and values
P. S. But I think that it is more better to have external maven installation in system