Simple bash prompt customizations: shortened username, full filepath, current git branch

Today I learned… that your Mac terminal bash prompt can be customized and enhanced well beyond its basic boring default.

A full tour of bash customizations is outside the scope of this post, but I do want to share the simple customizations I use on my own bash prompt.

Screen Shot 2015-02-16 at 9.07.45 AM

My prompt displays my username, the current directory’s file path, and the git branch I’m currently in.

To make your bash prompt do this, open your .bashrc file.

$ open ~/.bashrc

.bashrc is a shell script that bash runs when you open bash. This example modifies PS1 (the user prompt). To make yours look like mine, add this to the bottom of your .bashrc file (the # comments are optional).

Save the file, return to your terminal and type source ~/.bashrc to apply the changes.

$ source ~/.bashrc

More bash customizations

That’s just the tip of the iceberg, though, and chances are, there’s more you will want to do to your bash prompt.

Here are two articles I found helpful.

  1. This IBM Developer Works post on customizing bash includes a handy sequence guide and an explanation of how colors work in bash.
  2. Martin Fitzpatrick has a great guide to customizing terminal on Mac that I adapted for my own prompt customizations, plus helpful explanations of how this stuff works.
  3. What is the purpose of .bashrc and how does it work?

Automate Express server restarts with Nodemon

Today I learned… that you don’t have to navigate to Terminal, press CTRL + C to stop the server, and re-enter node server.js to start up the express server again in order to see your latest work in the browser.

There’s a better way: get Nodemon and automate this repetitive process!

Nodemon will watch the files in the directory you run it in and restart your server automatically when it detects a change.

To install Nodemon:

$ npm -g install nodemon

To get Nodemon running:

$ nodemon server.js

Leave that Terminal window open and let Nodemon work its magic.