Where is .bashrc?
Don't forget it is a hidden file inside your home directory (you would not be the first to do a ls -l and thinking it is not there).
Do a:
ls -la ~/ | more
There should be a .bashrc on the first page.
If not just create it with:
vi ~/.bashrc
and add in the lines you need to add into it.
Permissions of my .bashrc are:
-rw-r--r-- 1 discworld discworld 3330 Mar 10 16:03 .bashrc
(chmod 644 .bashrc to make it rw r r).
User specific, hidden by default.
~/.bashrc
If not there simply create one.
System wide:
/etc/bash.bashrc