I must have done something to my environment in Ubuntu 17.10 as alias in the terminal no longer works. Probably/Maybe after a apt-get autoremove (I guess).
Open a terminal and running echo $shell shows nothing but an empty row. I run ps -p $$ and it shows that I'm in bash.
.bash_profile and alias are being recognized if I run source .bash_profile.
What could have happened and what can I do to get alias working again without needing to run source?