shell scripts to install different version of OpenCV in different distributions of Linux

if your system is Ubuntu, run the commands below.

$ cd Ubuntu
$ chmod +x * 
$ ./opencv_latest.sh
$ sudo apt-get install python-opencv

----INSTALLS opencv FOR PYTHON2------

Then, opencv for python3, run:

$ sudo apt-get install python3-opencv

if your system is RedHat, run the commands below.

$ cd RedHat
$ chmod +x * 
$ ./opencv_latest.sh

if your system is ArchLinux, run the commands below.

$ cd ArchLinux
$ chmod +x * 
$ ./opencv2_4_0.sh