I upgraded to So how do I roll back to Name required. Mail will not be published required. All Rights Reserved. Reproduction without explicit permission is prohibited. Mac OS X Enter your email address below: Posted by: June 23, at 1: June 23, at 4: June 23, at 2: Brian says: June 23, at 3: Mike Pelletier says: June 27, at 3: June 27, at Donna Ryals says: June 28, at Upgrading to Mac OS X Copy and paste the command into your Terminal window, press return , then follow the instructions when prompted, as highlighted in the screenshot below.
Note that Terminal does not provide visual feedback when you type your password. Just type it slowly and press return. If you get Your system is ready to brew , you can move on to Step 3.
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Otherwise, go to the Troubleshooting section to learn how to fix errors and warnings you might run into. Git is the version control system of choice among many web developers. With Homebrew, installing Git is as easy as this:. Since we just installed Homebrew, we could have skipped brew update , but it's a good habit to run it before installing anything with Homebrew because Homebrew is updated regularly. Run brew doctor to make sure everything is still working. If your system is ready to brew, you can move on to Step 4.
I highly recommend that you turn on two-factor authentication for your GitHub account.
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To see this setup in action, go to the 1: RVM stands for Ruby Version Manager, and is one of the most popular tools that allow you to install and manage multiple versions of Ruby and Rails on the same computer. RVM has come a long way since I originally published this tutorial.
However, because RVM installs documentation for every gem that Rails depends on, which takes forever, I recommend disabling documentation first:.
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Now you can install everything with one command. If you're not interested in Rails, just replace --rails with --ruby in the command below:. Read the RVM installation documentation to see all the different options you can use. This will take a few minutes, and once it's done, quit and relaunch Terminal , then run this command:. If you get rvm is a function , that means RVM was successfully installed. If not, go to the Troubleshooting section.
You should get ruby 2.
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If you get dyld: Library not loaded: To fix it, reinstall your desired Ruby version by disabling the binary:. For Rails rails -v You should get Rails 4. To make sure your system is still ready to brew: Your machine is now set up with the basic tools for web development. If you got any value out of my tutorial, I have more time-saving tips and tricks for you in my free newsletter.
Once you start hacking away on your computer, you will most likely need to install more tools with Homebrew. Before you do, remember to always run brew update and brew doctor to make sure your system is still ready to brew. To upgrade your existing packages, run brew upgrade. If you installed the full Xcode package, remember that when you update it via the Mac App Store, you might also need to update the Command Line Tools via Xcode's Preferences.
If you installed the standalone CLT, I recommend checking for a new version once a month or so. If you followed this tutorial because you're interested in Rails development, I recommend visiting Daniel Kehoe's excellent RailsApps Project. This output also lets you know which version is the default and which one is the current one in use. To use a specific version 2. In many cases, Homebrew will provide helpful instructions for dealing with warnings and errors, and I usually follow those instructions.
I've tried to cover the most common sources of warnings and errors.
If you run into an issue I haven't mentioned, try looking it up in the Homebrew GitHub Issues , or Google the error message. If that doesn't help, contact me and I'll do my best to help you. After you fix each issue, run brew doctor until you get Your system is ready to brew. Then go to Step 3. If you get Warning: Every time you open a new Terminal window or tab,. See the important note in Step 1. If you get Error: You should copy and paste the command above as is. To learn more about any Unix command, type man for "manual" , followed by the command.
For example:. If a manual is longer than a page long, it will display a: To display one additional line at a time, press return. To display an additional page at a time, press the space bar. To quit at any time, press q. You'll have to delete each file it complains about one by one with the rm command. For example, to remove a file called libgd.
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If you think you might need this version of Python, then just ignore those warnings. Otherwise, run the command below to remove that version of Python, but read this thread first.
Homebrew messages are generally very helpful and they let you know exactly what to do. In this case, it is telling you to fix the linking issue by running brew unlink , followed by the tools or "brews" that need to be unlinked.
Here, there is only one tool that needs to be unlinked. Therefore, you should run this command:. If it listed more than one tool, you would add them to the command separated by a space, like so:. If you're installing RVM on a machine that has gpg installed which won't be the case on a new Mac , you will get a GPG signature verification failed error.