We all know that Photo Booth is great fun and is sure to entertain our friends and family with the goofy effects. But what if you want to take pictures using your iSight from the command line? Unfortunately Apple doesn’t provide this option (at least that we know of), but thanks to a crafty individual named Axel Bauer, we have a command line tool available for the task. Being able to capture images from the command line opens up many interesting possibilities, and we name a few potential uses.

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Have you ever wanted to change the short username in Mac OS X? Dig around in the System Preferences and you’ll soon find it’s not as easy as just typing in a new name. Apple has some directions on how to do it, but the instructional document is painful just to look at, let alone implement. Fortunately, there’s an easier way with a shell script aptly called ChangeShortName. There’s even an accompanying helper app that automates the process for you.

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Ever wondered what happens during the Mac OS X boot and startup process? With Mac OS X it’s a bit more complicated than things once were, and long gone are the days of Classic Mac OS (System 9, 8, 7, 6), where watching our Macs boot up with a series of extensions and control panels that we could always identify by their icon alone, and then go dig around in the Extensions folder to easily adjust what is loading and occurring on Mac boot. Today with the Unix underpinnings of Mac OS X, many users are entirely unaware of what is going on behind the scenes.

So what exactly happens during the Mac OS X boot process? You can always get a better look by booting a Mac in Verbose Mode, but that doesn’t necessarily explain all of what you see. Fortunately an excellent explanation is available via segment at KernelThread, which carefully lists the sequence of Mac OS X boot events, from start to finish. It is fairly thorough and worth a read, repeated below for the inquisitive Mac users out there.

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We are all excited for this springs release of Mac OS X Leopard 10.5, and each new developer release can give us hints of what is in the pipeline. The Mac speculation site MacRumors says that the latest seed of Leopard includes a few new features that have been suggested, including tabbed window support in Terminal. Also, it looks like Terminal has the ability to run across various workspaces. It doesn’t look like anything too ground breaking has appeared yet (such as the rumored new interface), but little feature improvements here and there.

Source: MacRumors

Hidden from the casual Mac user is a spiffy command line utility that allows you to view, configure, and troubleshoot your Mac’s wireless connection, entirely from the Terminal of MacOS and Mac OS X. This command has a help file but is otherwise but not much documentation, and judging by the obscure location of the command, Apple probably didn’t think it would be too useful for the average Mac user. But the hidden command line airport tool is very useful indeed, particularly for more advanced Mac users who want to have full control over their wi-fi hardware directly from the command line in Mac OS X.

With that in mind, here is how to access the amazingly useful yet little-known airport tool, and how you can use it for some networking tasks too.

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Safari is my browser of choice in Mac OS X, I like Chrome and FireFox a lot but it doesn’t have the same Apple polish to it, and page rendering seems speedier in Safari (my opinion, no intention on sparking a browser war here).

If you’re a Safari user, here are some key strokes that you should know about that will make web browsing a speedier and more pleasant experience. These keyboard shortcuts are particularly useful for laptop users since the hands tend to be situated on the keyboard more often.

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There are quite a few ways to listen to the radio on your Mac, through iTunes, Safari, various Dashboard widgets, but RadioTuner is probably the best way yet.

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For those of us who have ever played Quake, this is an easy one to explain. Remember hitting the tilde (~) key would bring down the Quake terminal? Well that is what Visor does for Mac OS X. You assign a hotkey, and when Visor is triggered, a nice Terminal slides out of the top of the screen for immediate use.

Is this cool or what?

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A variety of keyboard shortcuts and commands can be used during a Mac system startup to access various features, systems administration utilities, and troubleshooting tricks. Some of these startup keys may be slightly different on PPC and Intel Macs, but many of the features remain the same, whether it’s accessing safe-boot mode, hardware tests, single-user mode, boot from a DVD, or more.

Check the list below for ten absolute essential startup commands that every Mac user should know, particularly for that older hardware!

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The Dock is a major part of most Mac OS users daily lives, used for everything from application launching, to storing of minimized windows and apps, where the Trash is located, and more.

But the Mac Dock has more tricks up its sleeve than what is readily visible, and with the help of key command modifiers, you can gain access to some very useful Dock tricks and shortcuts.

The list below of Dock shortcuts and key commands can help you to get the most out of the Mac Dock.

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The startup sound on a Mac is cool and all, but if you’re in a quiet library, office, or classroom, that sound can be a bit obnoxious to yourself and others as it blasts throughout the speakers and into whatever room you’re in. Sure, you can mute the sound by holding down the keyboard Mute button during Mac system boot, or you can stick some headphones into the jack if you’re quick on the draw, but what if you don’t want to do that all the time? What if you forget to do that? What if you would rather it just be a bit quieter, rather than really loud?

A nice solution for this on supported Macs, is a free utility called StartupSound. This is a simple preference pane addition that enables you to adjust the sound level of the startup sound, or even mute it entirely, in much the fashion that you can adjust other system volume, you just have a little slider to move around as you see fit.

Installation is easier than pie, and the interface is as simple as it gets too. So save yourself the embarassment of public boot sounds and check out StartupSound!
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Christmas is here, and what better way to get in the spirit than to make you and your loved ones into Santa! SantaSnaps is a lot like Photo Booth except instead of distortions and color changes, you get elf hats, beards, ears, reindeer horns, glasses, and a few other holiday accessories. There’s also a strange looking nutcracker if you feel the need to transform into one. Certainly not groundbreaking software but it is fun and appropriate for the time of year. Enjoy the holidays and Merry Christmas!

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Mac ownership is largely troublefree, but sooner or later you’ll probably run into some kind of problem with your systems performance. MacOSXHints.com is one of the best sites out there for tips and helpful information for the Mac, and although this article is dated (almost three years now!) it is just as useful as ever. So if you’re having any problems with your Mac or Mac OS X, go over this great list and try out the troubleshooting methods described, you just may fix the problem yourself!

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The Apple Rumor site ThinkSecret obtained the latest release of Mac OS X 10.5 Leopard and put together a nice screenshot gallery for all of us to see. Notably missing is the much anticipated GUI revision that has everyone buzzing, but perhaps Apple is hiding the final GUI until release day. There might be some hints of the new interface in some of the windows that show a dark grey appearance, as you can see below. Also, check out the other screenshots to get an idea of how the development of Leopard is coming along, and to see what we’ll all be using in some months!

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The command line in Mac OS X can be a very powerful and fun tool, so it’s good to know how to maneuver around if you find yourself in it. By default, the Mac OS X Terminal uses the Bash shell, which is what these keyboard shortcuts are intended for.

So if you’re ready to get your feet wet, open up the Terminal and try these shortcuts out, they’re sure to make your command line life easier.

While the keystrokes will perform some incredibly useful tasks, the complexity isn’t too deep or crazy so you should be able to try all these out within a minute or two. Take a moment to do that, learn a bit more about the command line, and have fun.

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Last week I thought I had found the best snow screensaver for Mac OS X with LotsaSnow, but I was wrong. This is the best snow screensaver for Mac OS X, and if you want proof – it is what Apple is using in the Apple Stores this holiday season!

Snowfall is a beautiful screensaver of falling three dimensional snowflakes rendered incredibly smoothly in quartz composer (so it only works in Mac OS X Tiger and newer, tested to work in 10.6.5).

It is a real treat for your Mac desktop and highly recommended to get you in the holiday spirit.

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The World of Apple has reported that the latest build of Apple’s next generation Operating System, “Leopard” will include support for Sun Microsystem’s ZFS filesystem. The ZFS filesystem has been described by Sun as “The last word in filesystems.” It appears that HFS+’s days are numbered, but on that same note, ZFS looks like an excellent alternative. Read on for what to expect from ZFS.

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Now here’s a cool trick: you can take iSight camera captures when an invalid login is detected on a Mac! This is so cool.

Posted verbatim from Mac OS X Hints:

“With the new MacBook Pro’s including built-in iSight cameras, I thought it would be useful to take an iSight snapshot of anyone trying to break into my laptop. This is done by tailing /var/log/asl.log for invalid login attempts (both at the login screen and screen saver). I have created an authsight program (1.5KB download) that provides a monitoring daemon which calls the camera after an invalid login attempt, and also includes a launchd manifest. An iSight command line tool named iSightCapture is also required.

It would not be too difficult to modify this tool to call home and even email photos should a laptop be stolen.”

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