First of all, this forum is not related to Ubuntu, and I think it will be locked in a few time. Read the Rules!
Second, you should use the valgrind of Ubuntu's repositories.
Third, as I said, I don't know Ubuntu, just debian, and so I just do an apt-get when I want to install.
Fourthly, if you intend to use command line tools, and you are not able to learn with documentation well... good luck.