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Turn iPhone or iPad Screen Into Black & White with Grayscale Mode

Feb 13, 2015 - 5 Comments
iOS Grayscale Mode vs Color Mode

The latest versions of iOS support an optional display mode that turns everything shown on the screen of an iPhone or iPad to black and white. Called Grayscale mode, the setting is mostly intended as an accessibility option, but it has other uses beyond that as well.

How to Show Battery Percentage on iPhone to Indicate Remaining Battery Life

Feb 12, 2015 - 2 Comments
Show battery percentage remaining in iOS

A simple trick that can help manage iPhone battery life is to set the battery percentage remaining to be visible. This battery percentage indicator is off by default in iOS, and while that adds an element of simplicity to the status bar, the lonely battery icon isn’t particularly informative – to me, anyway. We’re going … Read More

Flatten a Nested Directory & File Hierarchy from Command Line of OS X

Feb 11, 2015 - 8 Comments
Nested directory structure to flatten as shown in the Finder of Mac OS X

Have you ever needed to flatten a directory structure, moving all file contents from a directories child folders into a single folder? While you can do this manually by moving around files and folders from the file system of OS X or Linux, a faster option is to turn to the command line. Maybe at … Read More

Change the Mac Ringtone Sound for Incoming iPhone & FaceTime Calls

Feb 10, 2015 - 9 Comments
Changing the Mac Ringtone for FaceTime and iPhone calls

Now that the Continuity feature allows the Mac to receive incoming calls from your associated iPhone, in addition to standard FaceTime video and audio chat, you may want to take a moment to customize the ringtone that sounds when a call is coming to a particular Mac. This is particularly helpful with multiple-Mac environments with … Read More

How to Check What Cellular Carrier Network an iPhone Uses (or Used)

Feb 8, 2015 - 1 Comment
Check cellular carrier on the iPhone even without a SIM card or cell service

Knowing what network an iPhone uses can be important for trying to repurpose an old device, buying a used iPhone, or simply to determine if a particular iPhone will work on a network of choice. While the iPhones top status bar will show the carrier name of an active cellular network, if the device isn’t … Read More

Show & Hide Notification Center Widgets in Today View of Mac OS X

Feb 7, 2015 - 2 Comments
iTunes Notification Center widget is here just like you wanted

The Mac Notification Center gained widgets in OS X Yosemite, which are revealed when the Notification Center is opened and the “Today” view is chosen. This looks and functions a bit like Widgets in iOS, and these widgets range from World Clock, Calculator, Weather, Reminders, Calendar, Stocks, Social, and an to an iTunes widget, but … Read More

View iPhone Cellular Signal & Battery Life from Mac OS X

Feb 6, 2015 - 8 Comments
OS X Instant Hotspot lets you view an iPhone signal and battery life

The Instant iPhone Wi-Fi Hotspot feature in OS X is incredibly useful if your Mac is on the go or you need an alternate internet connection, but even if you’re not aiming to use the cellular internet sharing capability of iPhone there are some other handy uses for the feature, like checking two of your … Read More

Understanding Why Terminal Doesn’t Let You Type a Password

Feb 4, 2015 - 9 Comments
Typing a password into Terminal won't show up, this is intentional

Sometimes you need to enter a password into the terminal, usually for sudo or su commands, which lets users execute a command with super user privileges. This is fairly typical for allowing access to read or modify something that would otherwise not be possible with a standard user account. You’ll commonly see sudo prefixing another … Read More

Jump to a Line Number in TextEdit Documents on the Mac

Feb 3, 2015 - 5 Comments
Select a line number in TextEdit documents for Mac OS X

TextEdit is a surprisingly handy Mac app that is mostly underutilized and under appreciated, and while it’s certainly not going to compete with the abilities of pro text editors like BBEdit and TextWrangler, it can function as a simple code editor in a pinch. One of the quintessential features of any good text editor is … Read More

Set or Disable Sleep Due to Mac System Inactivity from the Command Line in OS X

Feb 3, 2015 - 4 Comments
Sleep Mac

Mac users can adjust the idle time to sleep their computers easily through the Energy Saver preference panel, but many advanced OS X users may wish to turn to the command line to perform such a task. This allows for scripting, remote checking and changing idle sleep behavior through SSH, and you can also use … Read More

How to Detach a Phone Number from iMessage if You’re Switching Away from iPhone

Feb 2, 2015 - 3 Comments
deregister-imessage

If you have ever switched from an iPhone to an Android or Windows phone, either temporarily, out of necessity, or for testing purposes, you may have noticed that a new phone will sometimes not receive inbound messages that have been sent from other iPhone users. Well, you probably didn’t notice it because you didn’t get … Read More

How to Hide a Specific User Account from Login Screens of OS X

Feb 1, 2015 - 8 Comments
Hide a specific user account in Mac OS X

Mac users who have multiple user accounts on a single machine may sometimes wish to hide a specific user account from appearing on the login screens of OS X. This is fairly common for systems administrators who want to hide an admin account that can be used for direct or remote troubleshooting, but it can … Read More

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