Whilst there is a .DEB installer to download from the GoHugo sites I get all matter of warnings that the package is of bad quality and I am not comfortable to run these kinds of installers.
I rather install from sources in this case which is very straight forward since the main dependencies (largely GO) are in the Ubuntu main repositories.
sudo apt-get install golang git mercurial python-pygments
Create environment variables
#add the following 3 lines
Update Bash Environment Variables without logging out.
go get -u -v github.com/spf13/hugo
Start using Hugo
#create new site
hugo new sitename /path/to/sitename
#change directory to site
#create content page
hugo new about.md
#edit content page