Convert a Nero Image File to ISO format

dd bs=1k if=image.nrg of=image.iso skip=300

Command to see a list all Open Internet Connections on a Mac

lsof -i

Mac OS X Command

Some helpful tips for quickly rebooting, shutting down, logging out, or sleeping your Mac:

Immediately Reboot Mac OS X
Control + Command + Eject

Immediately Shutdown Mac OS X
Command + Option + Control + Eject

Immediately Log User Out of Mac OS X
Control + Option + Shift + Q

Immediately Put Your Mac to Sleep
Command + Option + Eject (hold the buttons down for 2 seconds)

Immediately Shut Off Your Mac Display
Shift + Control + Eject

Find the largest files in a directory

From the Terminal, if you want to quickly find out what the largest files are in a directory, try this variation of the ls command:

ls -lShr (It will show sorted list)


If you want the largest file in a directory of a certain type, simply specify the file type with a wildcard to show all files fitting that description:

ls -lShr *.rar

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Bypass Mac Firmware Password

Get around a Mac Firmware Password

This is a hardware based hack, proceed with caution!

1) Shut down your computer

2) Remove the battery

3) Remove the three philips head screws that are on the L-bracket

4) Remove the L-bracket

5) Slide one of the levers (it doesnt matter which one) to the left. This will release the RAM

6) Gently wiggle the RAM card out and put it aside, you will put it back later(do NOT touch the gold bars on the front; you could break it)

7) Replace the L-bracket and put the battery back in

8 ) Boot up the computer while holding COMMAND+OPTION+P+R (this resets the parameter ram)

9) Wait for the startup chime to sound 3 times

10) Release the keys and shutdown the machine once you reach the login screen

11) Remove Battery and L-Bracket, replace the RAM module and slide the lever back while pushing it in until it does not wiggle anymore

12) Replace The battery and L-Bracket

13) Now if you boot up the machine you should bypass the Mac firmware password.

Open Current Folder in Finder from the Terminal

From the Terminal, you can immediately open whatever folder or directory you are working within into the Finder by simply typing the following command:

$open .