How to create a USB bootable flash drive in OS X. I *always* forget this.

bootable-flashdrive.sh

# From: http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-mac-osx

hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/iso.iso

# Run diskutil list and determine the device node assigned to your flash media (e.g. /dev/disk2).
diskutil list

# Replace N with the disk number from the last command.
diskutil unmountDisk /dev/diskN

# Copy the files!
sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m

# Eject the flash drive.
diskutil eject /dev/diskN