“Another device on the network is using your computer’s IP address” Mac Error Fix

Sep 19, 2010 - 35 Comments

This is a rather strange error message which you may see in Mac OS X, you’ll get the notification “Another device on the network is using your computer’s IP address” and then you’ll lose internet access with the dialog box telling you to try connecting again later. No thanks, we need internet access now! So … Read More

List All Third Party Kernel Extensions in Mac OS X

Aug 3, 2010 - 5 Comments
Terminal

If you’re troubleshooting a Mac machine with some particularly odd issues that routine measures don’t seem to be resolving, it can be helpful to list what kernel extensions are activated, particularly third party kexts loaded in OS X. Determining what kernel extensions are loaded and running in Mac OS X is rather easy, and using … Read More

Find Out Type and Model of LCD Panel in an iMac, MacBook, MacBook Pro, etc

Jul 28, 2010 - 9 Comments

You can find out what the manufacturer, model number, and type of LCD panel you have in any of your Macs, including the iMac, MacBook Air, MacBook, or any model MacBook Pro by using a fairly complex looking terminal command. If you’re unfamiliar with the command line, just copy and paste the line below into … Read More

How to Reset the Ignored Software Updates List in Mac OS X

Jul 26, 2010 - Leave a Comment
Manual software update in OS X Yosemite with App Store option

Did you accidentally ignore a Software Update in OS X and now you need to install it on a Mac? Perhaps you were putting off a specific update for one reason or another, and now it’s time to install that ignored or hidden update again onto Mac OS X. Fortunately, getting the ignored updates back … Read More

FileVault and QuickLook leak some information from encrypted volumes

Jul 25, 2010 - 12 Comments

If you use FileVault and QuickLook you may want to know that the combination of the two may leak some sensitive information from encrypted volumes. Reader Jack R. sent in the following tip, explaining the situation further: When FileVault and QuickLook are used concurrently, information about what files are stored on the encrypted volume becomes … Read More

Run the Last Executed Command as Root with sudo !!

Jul 20, 2010 - 1 Comment
Terminal

Have you ever tried to run a command line tool to discover that you don’t have the necessary privileges to use it? Or perhaps the command itself actually requires root access to run at all? Rather then type out the entire command string again, you can use this awesome trick which re-runs the last executed … Read More

Open the Current Finder Window in the Terminal with cdto

Jul 15, 2010 - 6 Comments

Need to access the current Finder directory immediately within the Terminal? While newer Mac OS X versions have an option to enable “New Terminal at Folder” in Services, prior releases do not, so instead you can get cdto, it’s one of those must-have apps for anyone who’s constantly switching between the command line and the … Read More

Immediately Resize, Rotate, and Flip Images via Command Line with sips

Jul 13, 2010 - 11 Comments
sips command line image modification tool

You can resize, rotate, or flip any image file via the Mac’s Terminal using the powerful command line sips tool. Manipulating images with sips is practically instantaneous, and if you need to quickly resize, rotate, or flip an image file and want to stay within the command line, it can definitely beat firing up a … Read More

Remove the “Last login” Message from the Terminal

Jun 22, 2010 - 3 Comments
Mac Terminal icon

When you launch a new Terminal window or tab in Mac OS X (and most linux distributions) you’ll be greeted with a little message, either some “last login” details, or maybe even a message from the admin from /etc/motd. The last login details are default in a new OS X terminal session, whereas the Message … Read More

Launch a file into its associated application via Quick Look preview

Jun 21, 2010 - 6 Comments

You can immediately launch any file into its associated application from Quick Look preview mode by holding down the command key and then pressing the down arrow key, so if you’re looking at a PSD file it will launch in Photoshop, a JPG into Preview, MP3 into iTunes, etc, directly from Quick Look! Thank you … Read More

Open a Containing Folder in Spotlight on Mac by Hold Down Command Key

Jun 10, 2010 - Leave a Comment

Spotlight is amazing at finding files buried deep within your Mac, but what if you found the file you wanted, and you don’t know what folder it’s contained within on the Mac or it’s buried deep somewhere in OS X? The answer is as easy as a keystroke.

Easily Add Line Numbers to a Text File with the Command Line

May 20, 2010 - 7 Comments

Brian asks: “I need to add line numbers to a text file. I don’t mean line numbers in the text editor, I mean adding a number next to each item inside a text file. Is this possible to automate or do I have to manually edit the file typing 1, 2, 3 and going insane?” … Read More

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