System Config Files:
User Configuration Files:

You may wonder how the bash profile and rc script (bashrc) are all related.
Here is a synopsis on how these scripts are executed and what should be
put in each.

Each file is called only if it exists, if it does not, there will not be
an error, it will simply be skipped.

Once authenticated during logon and the shell you specified in the
/etc/passwd (chsh(1)) is called, if the shell is bash, the following
configuration files are processed.

1. /etc/profile

	This file is modified by the administrator and is used to setup
	the environment which is specific to both the operating system
	and the administrator's implementation of it.

2. $HOME/.bash_profile

	This file is called after the system wide /etc/profile. The
	file is located in the users home directory and is used to
	personalize and change enviroment settings as needed by the
	individual user. The .bash_profile may call the .bashrc
	file located in the users home directory (this is popular on
	the RedHat linux variants).

3. $HOME/.bashrc

	This file is used to setup aliases and functions. It is located
	in the users home directory and is editable by the user as needed.
	The .bashrc file often calls the system wide bashrc file located
	in the /etc directory. It does not have the initial period before
	its name.

4. /etc/bashrc

	This system wide file is used in a similar way as the system wide
	/etc/profile configuration file. It is used to setup alias and
	functions which are specific to the administration's setup.

*. $HOME/.bash_logout

	This file is executed when a user logs out of the system. Most
	often it calls the clear command for a clean logout (in case
	you don't close the terminal after logout).