terminal install of linuxcnc 2.7 need help

i was following this syntax for installing linuxcnc and ran into a few errors
cd ~
sudo apt-get install git-core gitk git-gui
sudo apt-get build-dep linuxcnc
sudo apt-get install libudev-dev
git clone git://git.linuxcnc.org/git/linuxcnc.git linuxcnc-dev
cd linuxcnc-dev
git checkout 2.7
git pull
cd src
./autogen.sh
./configure --with-realtime=uspace
make
sudo make setuid
cd ..
. scripts/rip-environment

first, the apt-get build-dep linuxcnc line did not work. any help is appreciated

What was the error message on the display console?

no the errors i ran into following this script were in-line in terminal. they are explained in more detail at the end of ubuntu 14.04.1 linuxcnc help.