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$MASTER_IP='YOURIP' # or hostname

export ROS_MASTER="http://${MASTER_IP}:11311/"
# and/or save it 
echo "export ROS_MASTER=http://${MASTER_IP}:11311/" >> ~/.bashrc

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hostname -I

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rosrun image_view image_view image:=/camera/rgb/image_color

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rostopic list

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roslaunch freenect_launch freenect.launch

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roscore

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# search for packages
sudo apt-cache search ros-kinetic | grep "search term"
# Install kinect packages
sudo apt-get install -y freenect
sudo apt-get install -y ros-kinetic-freenect-camera ros-kinetic-freenect-launch
sudo apt-get install -y ros-kinetic-freenect-stack ros-kinetic-libfreenect

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sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'
sudo apt-key adv --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-key 0xB01FA116
sudo apt-get update
sudo apt-get install -y ros-kinetic-desktop
sudo rosdep init
rosdep update
# Create ROS workspace
echo "source /opt/ros/kinetic/setup.bash" >> ~/.bashrc
source ~/.bashrc
source /opt/ros/kinetic/setup.bash

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sudo apt-get update
sudo apt-get upgrade -y
#also install desktop if you want
sudo apt-get install -y xubuntu-desktop
#or sudo apt-get install -y lubuntu-desktop