Mac: installing homebrew messed up .profile in terminal
From the bash manual:


  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."


As stated if you have the file ~/.bash_profile then the file ~/.profile will not be read.

To fix, just run

cat .bash_profile &gt;&gt; .profile
rm .bash_profile


and open a new Terminal tab.