# syntax
git clone -b  

# Example
git clone -b my-branch git@github.com:user/myproject.git

# With Git 1.7.10 and later, add --single-branch to prevent fetching of all branches. 
# Example, with OpenCV 2.4 branch:
git clone -b opencv-2.4 --single-branch https://github.com/Itseez/opencv.git