I'm getting familiar with the terminal commands, and I came across this command to install the Heroku toolbelt:

wget -qO- https://toolbelt.heroku.com/install.sh | sh

Now from here I gather that wget is used to download files from the internet through various supported protocols, and they'll download even if I logoff.

Is that right?

And I wanted to know two more things about that command :

1. I see -q0- in the code. What does it mean? From manpages I see that -q is used to turn the output of Wget off. But what does that mean too? And how is using -q different from -q0-




2. What is the |sh at the end of the command for? What does that do?

Thank you very much for the time!