And here you thought Terminal was just for Unix geeks.

Ok, well, maybe it really is, but there’s a fun easter egg or two hidden in the old UNIX code that underlies Apple’s OS X software.

Turns out that you can play Tetris and Snake, two classic games from the dawn of digital gaming, in a Terminal window. Intrigued? It’s super easy.

While no one puts baby in the corner, you can ignore that time-honored advice and actually put the Dock in the corner on the screen of your Mac.

While the traditional tools for moving the Dock around will let you move it to the right, left, or bottom of the screen, this little bit of Terminal magic will have the dock pinned to the far corners of your Mac’s screen, either the right bottom, the top left, or any other corner you can imagine.

As you can see, it’s snowing in the Terminal.

This bit of fun is seriously easy to make happen, and it looks super cool when you maximize the Terminal window to full screen. Here’s how to make it snow on your own Mac.

Ever want to get a quick and dirty list of the Mac App Store apps that you have installed on your Mac? Well, look no further than the Terminal, Apple’s window into the guts of your beautiful OS X machine.

Here’s how to get a nice little list of all your installed Mac App Store apps.

It used to be a no-brainer to enable the Apache web server included with Mac OS X. You’d hop into the System Preferences, fire up the Sharing preference pane, and then you’d be good to go.

Starting in Mountain Lion, however, Apple hasn’t given a user-friendly checkbox as in previous OS X releases. Instead you need a little bit of Terminal magic.

Here’s how to enable and start the Web Service in OS X Mountain Lion.

I saw this tip over at OS X Daily today, and it reminded me of all the times I did this as a Mac IT guy a couple of jobs back.

See, every so often, the Macs where I worked would start to act weird. Nothing truly game-stopping — just little things, stuff that was easily worked around but always a little bit annoying. The first stop when things are weird, for me, was always Repair Permissions in the Disk Utility app. I’d usually then Verify the disk in that very same app, and see if it returned any errors. If not, I’d usually drop into single-user mode and do a file system check.

Here’s how to do just that.

If you liked my how-to on rolling your own ImageMagick-based OS X Services using shell scripts, you’re going to love OptiPNG. It’s another command line utility that can be used to shrink PNGs without losing any quality.

I routinely hide the Dock on my Macbook Air, since it takes up a significant portion of my screen. While I use Alfred most of the time to launch apps and such, I still like to use the Dock; call it a hold over from the last ten years or so.

Sometimes, though, when I move the mouse cursor over to the side of the screen I keep the Dock on (the left, if you’re curious), it pops up even when I don’t want it to.

Then I found this Terminal command which lets me set the time delay between when my cursor hits the edge of my screen and when the Dock actually appears. Now I have the delay period set to a larger number, making it much slower to respond and unhide.

As we continue to look at some tips for the new OS X beta this week, remember that OS X Mavericks isn’t a final version—it’s meant to be used by developers to ensure that their software will work with Apple’s latest and greatest.

With that disclaimer in mind, let’s continue.

If you need to use Java for any reason on your Mac, and you install OS X Mavericks beta on it, you’ll be sad when you try and run that Java-reliant bit of software.

For me, it was setting up the Minecraft server for my kid after I installed the beta last night to take a look at things. When I went to run it in Terminal, I got an error, saying there was no Java installed. So, even though I’d had Java installed in Mac OS X Mountain Lion, the Mavericks install seems to have taken Java off my Mac. No worries; it was kind of an easy fix.

Brett “I just built this” Terpstra has been at it again. Inspired by Evernote’s new reminders feature, launched last week, Brett decided to add something similar to his app NValt, itself a fork of the notable Notational Velocity. It’s called “nvremind,” and it’s pretty awesome.

Now, just by tagging a note with “@remind,” you’ll be sent a notification or an e-mail at the chosen time, and in Mountain Lion, clicking the notification will take you to the note in NValt.