Source is here, right? https://github.com/digibyte/digibyte
Should I choose Download ZIP?
Now I somewhat know how to use commnad line in Linuux - is that enough?
Will send DGB tip for help
The commands to do it are on that github page you listed.
Do these in order, if one of them doesn't work, then you are probably missing a library or application of some kind:
sudo apt-get install build-essential
sudo apt-get install libtool autotools-dev autoconf
sudo apt-get install libssl-dev
sudo apt-get install libboost-all-dev
git clone git://github.com/digibyte/digibyte.git
cd digibyte
./autogen.sh
./configure
make
cd src
sudo cp digibyted /usr/bin
Once you successfully do all this, there will be an executable in your digibyte directory, you would run that to run the wallet