How to set environment variables from the command line.

Which shell configuration files should not be changed.The names and locations of the files used to configure Linux shells at both global and user levels.

Which Bash configuration scripts are run when it is launched as a login shell and as a non-login shell.

How to modify the configuration of the Bash shell.

In the interest of clearing up any confusion we will also learn about the nologin shell.

The difference between a login shell and a non-login shell.

You will explore environment variables and shell variables such as $PATH, $?, $EDITOR, and more and how they contribute to the behavior of the shell itself and the programs that run in a shell. You will perform simple experiments to determine the sequence in which the Bash configuration files are executed when the shell is launched. In this session, which is largely based on Chapter 17 of my book, “Using and Administering Linux: Volume 1 – Zero to SysAdmin: Getting Started, you will explore” the several Bash configuration files for both global configuration and for users’ local configuration. As the Lazy SysAdmin, understanding and using the available tools to configure the Bash shell can enhance and simplify our command line experience. I will be presenting “BASH Configuration and Usage.”Ībstract: The Bash shell is the default shell for almost every Linux distribution. OLF will be held on Friday and Saturday, December 2 and 3 at the Hilton Columbus Downtown. I will be attending Open Libre Free (formerly Ohio LinuxFest) to speak and to do a book signing.

Openlibre