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Prevent System Sleep While a Process or Command is Active in Mac OS X

Jun 16, 2014 - 1 Comment
Caffeine prevents sleep while a command is running

Many Mac users use utilities to temporarily prevent their computer from sleeping, often relying on sleep corners, the third party tool called Caffeine, pmset, or more recently, the command line utility that is now bundled with OS X called caffeinate. By default, the Caffeine menubar item and the caffeinate command both will prevent sleep as … Read More

Want to Learn How to Quit VIM? Here Are 10 Ways to Exit VI

Jun 12, 2014 - 11 Comments
VIM

VIM is a very powerful command line text editor that is loved by experts and often hated by novices, mostly because it has a fairly steep learning curve that may seem unintuitive to those who aren’t familiar with it. Even something as simple as quitting out of VIM can seem like a challenge to those … Read More

Use ditto to Copy Files & Directories Intelligently from the Mac Terminal

Jun 11, 2014 - 8 Comments
The ditto command

Most longtime command line users rely on the cp command to copy files and directories, but Mac OS X offers another solution with the ‘ditto’ command. Ditto is slightly more advanced but can be advantageous to ‘cp’ for several reasons, as it not only preserves ownership attributes and permissions but also file resource forks and … Read More

Recursively Create a Nested Directory Structure & All Subfolders with a Single Command

May 27, 2014 - 7 Comments
Create a nested directory structure with mkdir command

Creating a series of nested directories within one another can be done instantly through the command line. This makes it very easy to immediately and recursively create a complex directory structure of folders within subfolders of subfolders, without having to navigate manually into each directory to create a new directory, then navigate again to that … Read More

Create ASCII Art Text Banners at the Command Line

May 23, 2014 - 8 Comments
Mac Terminal icon

Graphics and large stylized text blocks constructed entirely out of the ASCII keyboard characters is called ASCII art. You may have seen it with the goofy ASCII Star Wars thing, but once upon a time it was very popular to stylize messages and images on BBS’s, IRC, MUDs, message boards, and across the early days … Read More

Instantly Eject All Mounted Drives & Disks from the Command Line in Mac OS X

May 22, 2014 - 12 Comments
Eject all mounted volumes from the command line of Mac OS X

The next time you’re at the command line and need to eject every single mounted volume, hard drive, disk, disk image, and/or external drive attached to a Mac, you can instantly eject them all in one fell swoop with a handy osascript command string. This is great if you work frequently in the Terminal and … Read More

How to Check Bluetooth Keyboard Battery Levels from the Command Line on Mac OS X

May 18, 2014 - 7 Comments
Get Bluetooth battery life from the command line of Mac OS X

Ever needed to remotely check the battery level of a Bluetooth keyboard connected to a Mac? Or maybe you’re just a heavy Terminal user and wanted to see the current battery life of a wireless keyboard without having to leave the command line? You can do that easily through the Terminal of either a remote … Read More

Speed Up Terminal App in Mac OS X with These 4 Performance Tricks

Apr 30, 2014 - 5 Comments
Speed up the Terminal with these tricks

Many advanced Mac users spend a lot of time at the command line of OS X, accessed through the Terminal app. While generally the Terminal is fast and efficient, sometimes it can slow down over time, or suffer from some performance degradation due to user preference settings. If you feel that Terminal app is being … Read More

How to Disable IPv6 in Mac OS X

Apr 18, 2014 - 6 Comments
IPv6 Mac

Some Mac users may wish to disable IPv6 networking support on their machines. This may be desirable to avoid certain networking conflicts, or to increase security for users in higher threat environments, since IPv6 has been found by researchers to be potentially vulnerable to man-in-the-middle and other network attacks. Though most users don’t use IPv6 … Read More

Send Data Across Networked Computers with Netcat Using the Command Line

Mar 27, 2014 - 11 Comments
Send data over a network with netcat

Netcat is a powerful command line tool that can read and write data across a network connection using TCP/IP, it’s commonly used for relays, file transfer, port scanning, amongst other things. Though netcat origins are from the unix and linux worlds, netcat is also built into Mac OS X, and we’re going to use the … Read More

How to See What Users Are Connected & Logged In To a Mac

Mar 25, 2014 - 5 Comments
See what users are connected to a Mac

If you share your Mac on a network you may be interested to know who is connected to the Mac at any given time. This may include listing currently logged in users through a variety of network protocols, even locally, or perhaps just a history of users logins over a period of time. While OS … Read More

Send an SMS Text Message from the Command Line

Mar 12, 2014 - 30 Comments
Send a text message from the command line

When you think of sending out text messages you probably think of the iPhone or an Android, and the command line doesn’t cross your mind, but thanks to the ever-useful curl command, you can send out a SMS text message to any phone number right from the Terminal. Yes, curl, the same command line tool … Read More

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