How to download urdf tutorial from github

edit

I had to jump out of ros' steep training incline momentarily to test rolling robot toys, LiDAR, and bipeds in Gazebo to keep my sanity. Bipeds are beautiful, because its amazing I actually saw a few mean-looking dudes in my kinetic/local Gazebo test box, not in Barcelona simulation boxes. TONS of fun, but time to "roll my own" simple sdf. Now with separate lab boxes, and a rebuilt development box set only for training. I wish to take/study ros' urdf_tutorial (was all set to take it 6 months ago but..)

I have my melodic's catkin workspace recreated, however, all the underlying ros training examples are now, "been there done that" wiped.

My Melodic training box'

echo $ROS_PACKAGE_PATH

returns:

/home/user/catkin_ws/src:/opt/ros/melodic/share

Now want to re-check my "git" syntax for downloading ros' urdf tutorial. It has been awhile but I think syntax looks similar to

git https://github.com/ros/urdf_tutorial.git

Thanks for your help.