Being able to run VSCode from terminal with simple command is so nice like following

$ code .

but sometimes it doesn't happen because PATH hasn't been configured properly or it has been modified since you last set it up. Whatever the reason, VSCode has a remedy.

1. Press CMD+Shift+P
2. Type 'shell'
3. Choose 'Shell Command: Install 'code' command in PATH' as below:

Now, you can run code from your terminal.

Happy Coding!