Chapter 13. The login environment
When you log in to the system, before you are even presented with the command prompt, a couple of tasks happen. After you have typed in your login name and password, the system checks that you are indeed a valid user. It does this by checking the /etc/passwd file. If your login name is OK and the password you entered is valid, the next process can begin, which is your login environment.
In this chapter we will cover:
the process of logging in;
the /etc/profile;
the $HOME.profile; and
customizing your $HOME.profile.
Before we look at the next process let’s first look at the /etc/passwd file, which is a text file. You can alter any of the text fields including the password fields, so be careful. The passwd file contains ...
Get Linux and Unix Shell Programming now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
