I have an open terminal in ubuntu lucid in which I need a new env variable set.So,I open the .bashrc file and edit it ,to add the new env variable( say PYTHONPATH)
.bashrc
PYTHONPATH=/some/path
export PYTHONPATH
But,in order to get this effective ,I need to close my terminal and open it again.Is there some command with which I can get this effect,without close/open the terminal again.