Here will be my sequence of command lines while trying to install gdal2.1 in a UBUNTU virtual machine. My virtual machine is a UBUNTU 16.04 LTS(64bit) I would need gdal2.1 a
sudo add-apt-repository ppa:ubuntugis/ppa && sudo apt-get update
sudo apt-get update
sudo apt-get install gdal-bin
sudo apt-get install libgdal-dev
export CPLUS_INCLUDE_PATH=/usr/include/gdal
export C_INCLUDE_PATH=/usr/include/gdal
pip install --global-option=build_ext --global-option="-I/usr/include/gdal/" GDAL==2.0.1