This episode shows how to display the user's environment variables and highlights some of the more common ones that are used.

This episode explains what the PATH environment variable does and how to view its contents using the `echo` command.

After putting a `hello-world` shell script under my ~/bin/ directory, I show how to set the PATH variable using the `export` built-in command so that I can run the script without specifying the full path location.

This episode shows how to use the `echo` command to display the contents of common environment variables.

This episode discusses how certain files are run when loading the bash shell, and how a simple trick can be used to eliminate some of the complexity with your .bashrc and .bash_profile files.

This episode shows how to use the bash shell `source` builtin command to make it a part of the current shell environment.

This episode shows how to disable an existing alias as well as how to list all aliases currently available in your environment.