Terminal: Where is the shell start-up file? <p>I'm following a tutorial called <a href="http://www.jeffknupp.com/blog/2012/10/24/starting-a-django-14-project-the-right-way/">Starting a Django 1.4 Project the Right Way</a>, which gives directions on how to use virtualenv and virtualenvwrapper, among other things.</p> <p>There's a section that reads: </p> <blockquote> <p>If you're using pip to install packages (and I can't see why you wouldn't), you can get both virtualenv and virtualenvwrapper by simply installing the latter.</p> <pre><code> $ pip install virtualenvwrapper </code></pre> <p>After it's installed, add the following lines to your shell's start-up file (.zshrc, .bashrc, .profile, etc).</p> <pre><code> export WORKON_HOME=$HOME/.virtualenvs export PROJECT_HOME=$HOME/directory-you-do-development-in source /usr/local/bin/virtualenvwrapper.sh </code></pre> <p>Reload your start up file (e.g. source .zshrc) and you're ready to go.</p> </blockquote> <p>I am running Mac OSX, and don't know my way around the Terminal too well. What exactly does the author mean by <code>shell's start-up file (.zshrc, .bashrc, .profile, etc)</code>? Where do I find this file, so that I can add those three lines?</p> <p>Also, what does he mean by <code>reload your start up file (e.g. source .zshrc)</code>?</p> <p>I would appreciate a detailed response, specific to OSX.</p>