No .bash_profile on my Mac

For anyone else stumbling up on this after Mac Catalina,

Starting CATALINA the default shell is zsh. The profile file name for zsh is ~/.zprofile.

To setup bash as your default:

1. Open terminal
2. Goto preferences and choose "Shell opens with"
3. Click on "Command(complete path)" and type "/bin/bash" to start bash shell

In your terminal:

touch ~/.bash_profile; open ~/.bash_profile

Then make your edits and save. This is generic so make sure your path is correct in the above example.