If your entry in /etc/passwd says you are using bash, then normally you would have installed .bash_profile & .bashrc.
Basic versions are usually available in /etc/skel, although it may be different in Ubuntu.
See the link mentioned above http://www.cyberciti.biz/faq/howto-c...-user-account/
You can create them via an editor if necessary, with following perms/ownerships
-rw-r--r-- 1 username usrgrp 260 Oct 18 2011 .bash_profile
-rw-r--r-- 1 username usergrp 124 Sep 27 2011 .bashrc
Get the values for username, usergrp from your entry in /etc/passwd
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
# User specific environment and startup programs
# This seems to work
# Source global definitions
if [ -f /etc/bashrc ]; then
# User specific aliases and functions
and/or look in another user's home dir if possible.