Add PATH environment variables on macOS

Link: mac

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

Open the Terminal app on macOS.

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

Add the desired PATH

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

Save and close in terminal. For vi/vim, enter :wq to save and exit.
Enter below command in Terminal to apply the change
```
source $HOME/.bash_profile
```
Verify
```
echo "$PATH"
```