linux installation

I use Ubuntu.
I downloaded frost to a manually created directory / folder.
I unzipped and extracted to the folder.
None of the files install or start frost.

I downloaded to this location
/home/downloads/frost

I see where I have to run a command in terminal to make the *.sh executable

ran it still did not work.

When in terminal I try to change directory to  /frost says the location 
does not exist.

So please explain simply ad fully how to install frost and get it running.

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