I successfully installed the following on a Red Hat Enterprise Linux system:
1) Python 2.7
http://tecadmin.net/install-python-2-7-on-centos-rhel
2) Robot Framework
pip install robotframework
3) Selenium2Library pip install robotframework-selenium2library
But I get the command not found error,
pybot --version
bash: pybot: command not found
or
robot --version
bash: robot: command not found