The syntax of bash_bashrc is out of scope of this course. This file defines the default behavior of the shell for all users. If a user wants to customize his/her own shell behavior, the default behavior can be overridden by editing the .bashrc file located in the user’s home directory. Because this is a system-wide configuration, the configuration file is placed under /etc, making it editable only by the root user. Therefore, the user will have to log in as root to modify .bashrc. Why are user application configuration files saved in the user’s home directory and not under /etc with all the other system-wide configuration files?