Which of the following configuration files should be modified to set default shell variables for all users?

Which of the following configuration files should be modified to set default shell variables for all users?

Which of the following configuration files should be modified to set default shell variables for all users?

A.
/etc/bashrc

B.
/etc/profile

C.
~default/.bash_profile

D.
/etc/skel/.bashrc

E.
/etc/skel/.bash_profile

Explanation:
From the man pages:
When bash is invoked as an interactive login shell, or as a non-interactive shell with the –login option, it first reads and executes commands from the file /etc/profile, if that file exists. After reading that file, it looks for ~/.bash_profile, ~/.bash_login, and ~/.profile, in that order, and reads and executes commands from the first one that exists and is readable. The –noprofile option may be used when the shell is started to inhibit this behavior.

When a login shell exits, bash reads and executes commands from the file ~/.bash_logout, if it exists.

When an interactive shell that is not a login shell is started, bash reads and executes commands from /etc/bash.bashrc and ~/.bashrc, if these files exist. This may be inhibited by using the –norc option. The –rcfile file option will force bash to read and execute commands from file instead of /etc/bash.bashrc and ~/.bashrc.



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