commands

How to look up Terminal commands for OS X

The OS X Terminal is a very powerful tool for configuring and using a Mac, and can be used to script and program a number of aspects of the computer's operations; however, its text-based interface can be a bit of a cryptic environment to first-timers, especially when it comes to finding out what you can use it for.

There are thousands of Terminal commands available, but when you first launch it you might not have a clue where to look for them. Of course there are basic commands like "ls" for listing directory contents or "cd&… Read more

How to pair, control your Apple TV with a Bluetooth keyboard

With the release of iOS 6.1 for iOS devices, the Apple TV line quietly received an update as well. The update adds iCloud support for purchased music, Up Next support (although this was already present on an Apple TV), and the ability to pair a Bluetooth keyboard to your Apple TV. By pairing a keyboard you can control playback, navigate, and enter search queries all from the comfort of a physical keyboard.

To pair a keyboard, make sure you've updated your Apple TV to the latest OS. You can update it by going into Settings > General > … Read more

U.S. is home to greatest number of botnet servers, says McAfee

The United States is responsible for the highest number of botnet servers in the world, according to new data from McAfee.

A map and a list of major countries posted by McAfee yesterday show the greatest concentration of botnet servers to be in the U.S., with 631. That's more than two and a half times higher than the second country on the list -- the British Virgin Islands with 237.

The Netherlands took third place with 154 servers, followed by Russia with 125, Germany with 95, and Korea with 81. Among the Top 10, Canada fared the best … Read more

Adjust the sudo time-out behavior in OS X

As with many other Unix-like systems that have a BSD interface, OS X includes a fully Unix-compliant terminal that can be accessed with a Unix shell in the included Terminal utility. This feature allows for a relatively powerful way to access and modify system settings to customize and troubleshoot the system.

As with the rest of the system, this command-line interface is by default limited by standard permissions restrictions so only administrators may access system files and only users may access their own files. To get around this, the sudo command is commonly invoked to execute commands as another user, … Read more

How to customize modifier keys in OS X

Modifier keys for Mac systems are the Shift, Control, Option (Alt), Command, and Caps Lock keys. The commands triggered by combinations of these keys can greatly speed up how you use your computer, but it can slow you down again if you switch to a keyboard with an unfamiliar layout.

While most Mac keyboards have these keys in the same relative locations, so you don't have to change your typing habits, there are situations in which you may end up using something different, such as if you take a laptop to the office and plug in whatever keyboard you … Read more

Using and managing the Terminal history in OS X

There are times when using the Terminal that you might enter a command or two and then want to either run it again or review a whole sequence of commands that have been entered. This can easily be done by pressing the up arrow, scrolling through the previous commands, and then pressing Enter to execute the selected one again. In addition to this approach, the Terminal supports a number of other options for revealing and rerunning entered commands.

The Terminal is able to do this because it stores a small history of the commands you have run both in its … Read more

View a 2,000-year-old scroll of the Ten Commandments online

Google is once again offering a glimpse into ancient history with online images of rare scrolls dating back more than 2,000 years.

Courtesy of Google, in collaboration with the Israel Antiquities Authority, the new Leon Levy Dead Sea Scrolls Digital Library is now home to detailed digitized photographs of thousands of biblical and non-biblical manuscripts. These ancient scrolls were discovered in remote caves near the Dead Sea between 1947 and 1956.

Among them, the scroll of the Ten Commandments may be one of the most fascinating. Dating back to sometime between 30 B.C. and 1 B.C., the … Read more

Use voice commands from the Samsung Galaxy S3 lock screen

Perhaps you're not a fan of using patterns, PINs, or passwords to unlock your smartphone -- either it's too much hassle or you often forget what you picked. With the Samsung Galaxy S3 you can set up voice commands for doing things like unlocking the device, checking missed calls, or starting the camera. All you need to do is tap the power button and say one of your preset commands.

Here's how to set up your lock screen voice commands:

Step 1: Open the Settings menu and then head to the Security and lock screen option.

Step … Read more

This year, elect a video game president

Forget Barack Obama or Mitt Romney. This year, I'm voting for Link from Legend of Zelda.

Let's face it, during presidential-election seasons, the non-stop chatter about Republicans, Democrats, and Independents, plus all the drama, lies, and repetitious arguments, can get almost dizzying. To offer some relief, gaming Web site IGN created the 2012 Video Game Presidential Election featuring five candidates from iconic video game franchises. … Read more