When you login (type username and password) via console, either sitting at the machine, or remotely via ssh: .bash_profile is executed to configure your shell before the initial command prompt.
If you’ve already logged into your machine and open a new terminal window, then .bashrc is executed before the window command prompt. .bashrc is also run when you start a new bash instance by typing /bin/bash in a terminal.
Most of the time you don’t want to maintain two separate config files for login and non-login shells. You can fix this by sourcing .bashrc from your .bash_profile file, then putting PATH and common settings in .bashrc. To do this, add the following lines to .bash_profile:
if [ -f ~/.bashrc ];
then
source ~/.bashrc
fi
Now when you login to your machine from a console .bashrc will be called.
References
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