sudo apt update sudo apt upgrade sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list ' (the above statement is all one line with a space after the >) sudo apt install curl curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add- sudo apt update sudo apt install ros-kinetic-desktop-full echo "source /opt/ros/kinetic/setup.bash">> ~/.bashrc source ~/.bashrc sudo apt install python-rosdep python-rosinstall python-rosintall-generator python-wstool build-essential sudo rosdep init rosdep update roscore rosrun turtlesim turtlesim_node rosrun turtlesim turtle_teleop_key gazebo yeh lagah kar dekhlay than copy paste hota hai warna direct link open kar leh drive ka link seh download it sudo apt-get install virtualbox-guest-utils