Add PATH environment variables on macOS

Link: mac

Edit $HOME/.bash_profile file to set or change $PATH under macOS

1. Open the Terminal app on macOS.
2. Enter below command to open .bash_profile

   vi $HOME/.bash_profile
   # Or, alternatively, use nano as editor (more user friendly for people who doesn't know vim key binding)
   nano $HOME/.bash_profile

3. Add the desired PATH

   # e.g. for emacs PATH, it looks like this:
   export PATH="$HOME/.emacs.d/bin:$PATH

4. Save and close in terminal. For vi/vim, enter :wq to save and exit.
5. Enter below command in Terminal to apply the change

   source $HOME/.bash_profile

6. Verify

   echo "$PATH"