These files contain the aliases and environmental variables
made available to Bash running as a user shell and to all
Bash scripts invoked after system initialization.
/etc/profile
systemwide defaults, mostly setting the environment
(all Bourne-type shells, not just Bash
[1])
user-specific Bash environmental default settings,
found in each user's home directory (the local counterpart
to /etc/profile)
$HOME/.bashrc
user-specific Bash init file, found in each user's home
directory (the local counterpart to
/etc/bashrc). Only interactive
shells and user scripts read this file. See
Appendix K for a sample
.bashrc file.
logout file
$HOME/.bash_logout
user-specific instruction file, found in
each user's home directory. Upon exit from a login (Bash)
shell, the commands in this file execute.