Originally posted by anticuchos
What does this little thing do?: export PATH=$PATH:
Linux has a list of directories that it searches whenever you want to execute a command. This is your PATH.
Your path consists of directories such as /bin, /usr/bin and some others. If you want to run a command in your current directory (.) you need to add it to your path. The above line is how to do that. $PATH is an environment variable, and this is just the syntax for setting it. You add it to ~/.bashrc, so that it is set each time you log in.
I hope this helps