Want to encrypt a file quickly? You can do so with OpenSSL at the command line. A few months ago a question was posed to our readers about encrypting or password protecting a text file [How can I password protect a file?]. We got several good responses but one in particular has really stuck with … Read More
There are several ways to go about changing the volume on your Mac, but did you know you can use the command line? I’m a big command line junkie so the more things I can do from the Terminal the better. If you want to adjust your system volume level directly from the command line, … Read More
Regardless of how many Mac’s you administer, there will surely come a time when you’ll need to retrieve relevant System Information. This can be done from the graphical interface with the Apple System Profiler utility, but often you’ll need to pull system details from the terminal as well. Gathering system information from the command line … Read More
We all know the familiar Mac OS X Software Update and App Store Updates panel, it pops up weekly to give us a nice GUI interface to install all the latest updates to our Apple software. But did you know that you can get the same list, query the available updates list, and even install … Read More
When you click the yellow minimize button in Mac OS X, the snazzy Genie effect pulls the window into the Dock. Although you can change between the Genie and Scale effect from within the Dock preference pane, there is a third hidden effect that Apple has chosen to keep out of the preference pane. The … Read More
One of the essential functions of the command line of Mac OS X, Linux, or any Unix, is understanding some basics about how to use pipes. Essentially, pipes allow you to direct the output of one command into the input of another command, allowing the following command to manipulate, adjust, or work with the prior … Read More
Ever wished you could send the output of a command to a file or append that output to an existing file? That’s what redirects do. To put it simply, command line redirects allow you to take the output of certain commands and create new files or add to existing ones with this data, this is … Read More
If you have ever wanted to turn a DMG file into an ISO file, look no further than the handy command line utility called hdiutil, which is bundled in all versions of OS X. This can be helpful for many reasons, but one of the primary reasons to convert a DMG to ISO is for … Read More
Ever needed to eject a disc, cd, DVD, or media from the command line on a Mac? You can do that from the Terminal, as we’ll show here. To eject a disc or media from the command line on Mac, open up your Terminal and type the following:
Getting disk usage information on a Mac is often gathered by selecting a file, directory, or hard drive and hitting Command-I for Get Info, then appears a nice GUI interface with extended information about the selected object including disk usage. Command-I isn’t the only way to get disk info however, with the command line there … Read More
Copy and Paste are absolute necessities for virtually all computer users, and if you find yourself working in the command line frequently, you’ll want to know how to manipulate the clipboard of Mac OS X directly from the terminal prompt. That’s what the Mac commands pbcopy and pbpaste are for, and as you may have … Read More
Bash is the default shell in Mac OS X and has been since 10.3, it’s generally considered to be the de facto shell standard in the unix world. That said, there are some people who prefer to use the tcsh shell, or perhaps you just want to break away from the norm. Changing the default … Read More
Whether you’re a unix novice or veteran to the terminal, if you’re using the command line you’ll often find yourself looking up exactly how to use a specific command for either its understanding the commands full functionality or just to discover the proper syntax. Many of us will just google a command if we can’t … Read More
If you’ve ever wondered how to extract flash videos (or any others) from a website, here’s a good way to do it using Safari and the command line download tool ‘curl’. Here’s the description from Chris Martin: “So say you come across a video online that is so great you would really like to save … Read More
Many Mac users avoid the command line altogether, a reasonable amount probably don’t even know it exists. For the curious out there, here are some basic and essential commands and functionalities to know if you want to get started using the Mac OS X Terminal. We’ll cover simple file manipulation, maneuvering in the file system, … Read More
We all know how to launch applications from the GUI with a double-click on the icon or clicking on the app in the Dock, and there are numerous ways to do so, and they’re all relatively speedy. If you spend a decent amount of time with the command line though, it’s nice to be able … Read More
Whenever you launch the Terminal in Mac OS X, you may get a little message: “Welcome to Darwin!” or a “Last Login” time – well, after you’ve seen it a few hundred times you might be sick of it, or perhaps you’d prefer something more amusing, meaningful, or even useful to yourself and other computer … Read More
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 … Read More
