Command line prompt doesn't work on MacOS
If you are working in a terminal application on a Mac and it just doesn't seem to work correctly, try this:
Open a terminal window and type this in to see if you have a .bashrc file:
ls -la .bash*
If you see a .bash_profile file but not a .bashrc file, create a .bashrc file:
vi .bashrc
Then go in to insert mode (hit the i key) and type or copy in the text below:
source ~/.bash_profile
Then save and close the file. (hit the esc key and then type :wq)
If you see both a .bashrc and a .bash_profile, look at the .bashrc file:
vi .bashrc
It should contain the following code:
source ~/.bash_profile
If it doesn't, add it to the bottom of the file.
Close all the Terminal windows and then reopen one and try the terminal application again.
For some reason, a Mac may only have a .bash_profile file and some GNU terminal applications (like Screen) look to the .bashrc file for configuration information, but not the .bash_profile file.