OS X Mavericks is quite good, and is at least optimized for most hardware. On a brand new Mac, OS X Yosemite runs quite well, however. Fortunately, most 2010 Macs came with physical reinstall DVD volumes of Mac OS X Snow Leopard, so you should be good to go with that. MacOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. And get even more transparency around your privacy. Copy libxml2 folder into somewhere in your project’s directory, say /path/to/somewhere. In your Xcode project Build Settings: Find Swift Compiler - Search Paths, add /path/to/somewhere/libxml2 to Import Paths.

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In this week’s tip, I’ll discuss a cool feature that you may be wholly unaware of—even if you’re a long-time Mac user.

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In Lion and Mountain Lion, click the Apple menu and choose About This Mac. Yeah, yeah, you’ve seen this before. But now click More Info.

In the old days, you’d be taken to System Profiler, and you’d see a fairly drab list of specs about your Mac—which you can still see in Mountain Lion by choosing Show System Report from the File menu. But now More Info offers a slicker view that puts your Mac’s most important information front and center.

For example, if you need to quickly find out exactly which MacBook Air you have, the Overview screen tells you. Need your serial number? It’s here too—and you can create a text snippet of it by highlighting it and dragging it to the desktop.

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The Displays tab shows you what you need to know about your display, and it provides a Displays Preferences button in case you want to change your display’s settings.

Click Storage and, as with an iPod or iOS device in iTunes, you can see how your storage is distributed on all connected drives. Click Disk Utility if you’d like to work with your storage devices.

The Memory tab tells you how much RAM you have installed and how it’s installed. If you’re interested in learning how to install more RAM, click the Memory Upgrade Instructions link. (Macs that don’t have user-upgradeable memory will lack this link.)

Click the Support link and you’ll find several helpful links. For example, you might easily spend dozens of minutes digging around Apple’s site trying to find the user manual for your Mac. Click the User Manual link under Support, and you’ll never dig again.

Likewise, if you want to see the technical specifications for your particular Mac, there’s a link for that too.

And if you’d like to check on the service and support options available to you, click Service, and then click the appropriate link.

I’m sure Apple mentioned the new System Information window somewhere in its 200 new Mac OS features, but it was well down the list and easily missed. If you haven’t taken a peek at it before, now’s the time.

What is the bin folder?

Although it might sound like it, this is not the Trash. Bin is another hidden folder.

When operating systems, such as macOS — and Mac OS X before that — are constructed using a Linux system directory, certain files and folders are hidden on purpose. Almost every operating system will hide things that the majority of users don't need. It is the same as an architect and builder placing plumbing and wiring behind a wall: it looks better, and the last thing you want is to accidentally damage the operating system that keeps your house functioning smoothly.

It is enough for most people to know that the plumbing and wiring are working smoothly and that they can call a professional should something go wrong. With an Apple operating system, hidden folders and files are routes that power users take to tweak and modify a Mac, to improve how it performs, and solve any problems should anything go wrong.

Accessing the bin folder is another way to take a look at potentially make changes to license and configuration files. Now, if you ever want to make changes to hidden files and folders without digging around in system directories, there is an easier and quicker way. Download an app like CleanMyMac X to uncover space within hard drives. Using its Space Lens feature, This program can show you what is taking up space and help you delete anything you don't need.

However, if you are keen to look under the hood manually, here is how to access the bin folder.

Ways to access the bin folder?

Method 1: Find the bin folder through the Finder

  1. Open Finder
  2. Press Command+Shift+G to open the dialogue box
  3. Input the following search: /usr/local/bin
  4. Now you should have temporary access, so you should be able to drag it into the Finder favorites if you want to access it again.

Another way to find the bin folder is through Terminal.

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Method 2: Finding the bin in Terminal

  1. Launch Terminal; which you can find in /Applications/Utilities
  2. Enter this command in Terminal: chflags nohidden ~/usr/local/bin
  3. Click Return. Make sure the command is executed.
  4. Quit Terminal. The bin folder should be visible in the Finder.
  5. If you ever want to restore this to how it was before, enter the following command in Terminal: chflags hidden ~/usr/local/bin
  6. Click Return again, and it should be back to how it was.

Only attempt this method if you are comfortable using the Terminal. Remember, using Terminal can make significant changes to your macOS systems and files, so only make these sorts of changes if you’re confident in the inputting instructions. This way, you should have temporary access to the bin folder to make any needed changes.

Pro Tip: If you find yourself running short of storage on your Mac, clear out your downloads folder. Everything you’ve ever downloaded that you’ve not moved somewhere else or copied is sitting in that folder. Going right back to when you got your Mac. Imagine how much room that is taking up! Especially when it contains zip folders, videos, images, and app downloads.

Another way to access hidden directories

There are many apps that allow you to gain access to hidden files, folders, and directories. One such is Daisy Disk, another CleanMyMac X. I prefer CleanMyMac better because of nice visualizations. You can click the 'Space Lens' tool and see the entire folder tree of your Mac. This reveals many hidden folders and things you may have long forgotten.
I downloaded the free version of CleanMyMac X here.
After you get the app, you need to click the 'Space Lens' tab.

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From there, click on bubbles to dive deeper into folders that are sorted by colors and categories. Quite exciting, really.

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That's all you need to know about finding the Bin folder on Mac. Stay tuned for more Mac tips!