I'm feeling noob! i try to follow the guide, but i fail!

I can do the beginning :

cd ~
sudo apt-get update
sudo apt-get install -y git make g++ build-essential libminiupnpc-dev
sudo apt-get install -y libboost-all-dev libdb++-dev libgmp-dev libssl-dev dos2unix
git clone https://github.com/InvictusInnovations/ProtoShares
cd ProtoShares/src
make -f makefile.unix

But not that :

echo "rpcuser=[youruser]" >> /root/.protoshares/protoshares.conf
echo "rpcpassword=[yourpass]" >> /root/.protoshares/protoshares.conf
./bitcoind -daemon
./bitcoind setgenerate true 3

what could i whrite exactly before the echo process? I don't know linux programmation at all...
mkdir ~/.protoshares
is it the answer??

I put a stop loss at 5 dollars.
Thank you for your help guys