Bash is invoked as an interactive login shell.
What is the order in which the bash configuration files are read, assuming that all the files exist in
their correct location and are readable?
A.
/etc/profile, ~/ .profile
B.
/etc/profile, ~/ .bash_profile
C.
/etc/profile, ~/ .bash_profile, ~/ .bash_login, ~/ .profile
D.
/etc/profile, ~/ .bash_profile, ~/ .profile, ~/ .bash_login
Explanation:
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.
Correct is C.
http://landoflinux.com/linux_bash_configuration_files.html
C
from man page
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.
—> correct answer C