===== Useful Terminal Commands =====

Mute Startup Sound:
  sudo nvram StartupMute=%01

Erase Hard Disk:
  diskutil eraseDisk JHFS+ empty /dev/disk1

Force rebuild of Finder Prefs:
  mv ~/Library/Preferences/com.apple.finder.plist ~/Desktop/

Make Library Folder visible:
  chflags nohidden ~/Library/
  
Cleanup Finder database:
  /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain system -domain user

Backup iPad on external disk (named "disk2s2"):

  ln -s /Volumes/disk2s2/Documents/MobileSync/Backup ~/Library/Application\ Support/MobileSync/

Booting in verbose mode:

  sudo nvram boot-args=”-v”

Show full path names in all Finder windows:

  defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES

Always use expanded save dialog:

  defaults write -g NSNavPanelExpandedStateForSaveMode -bool TRUE
  
Change date to March 18th 2013 12:50 for fooling older MacOS X Installers:

  date 0318125013
  
Purge cached user preferences:

  killall -u $USER cfprefsd
  
Unlock folder and all files therein:  

  chflags -R nouchg /PATH/TO/DIRECTORY/WITH/LOCKED/FILES/


Enable Screen Sharing
  sudo defaults write /var/db/launchd.db/com.apple.launchd/overrides.plist com.apple.screensharing -dict Disabled -bool false
  sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.screensharing.plist

Remove all files from git cache
  git rm -r --cached .
  git add .
  git commit -m ".gitignore is now working"