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User settings at login
When a user logins, getty gives him SHELL.
In case of /bin/bash, the following initialization/configuration scripts are executed:
| /etc/profile | System wide initialization file. Runs at log in. |
| ~/.bash_profile | Executed automatically after /etc/profile |
| ~/.bash_login | If ~/.bash_profile is absent, the script is executed after /etc/profile, otherwise, ignored. |
| ~/.profile | If both ~/.bash_profile and ~/.bash_login are absent, the script is executed after /etc/profile, otherwise, ignored. |
| ~/.bashrc | It is called from ~/.bash_profile at startup. An interactive shell that is not a login shell also reads ~/.bashrc . |
| ~/.bash_logout | Executed automatically during log out |
| ~/inputrc | Contains optional key bindings |
When you need to specify environment variables, for example PATH, you can place
them in /etc/profile for all users on the system, or in
~/.bashrc for the specific user.
When the user logs out, control returns to init, which wakes up and spawns
a new getty on the terminal port.
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