Configure OSX Yosemite with sensible defaults

configure_osx.sh

# Disable the "Are you sure you want to open this application?" dialog
defaults write com.apple.LaunchServices LSQuarantine -bool false

# Disable press-and-hold for keys in favor of key repeat
defaults write NSGlobalDomain ApplePressAndHoldEnabled -bool false

# Set a fast keyboard repeat rate
defaults write NSGlobalDomain KeyRepeat -int 2

# Decrease the initial time before a keyboard repeat
defaults write -g InitialKeyRepeat -int 15

# Disable auto-correct
defaults write NSGlobalDomain NSAutomaticSpellingCorrectionEnabled -bool false

# Require password immediately after sleep or screen saver begins
defaults write com.apple.screensaver askForPassword -int 1
defaults write com.apple.screensaver askForPasswordDelay -int 0

# Set Home as the default location for new Finder windows
defaults write com.apple.finder NewWindowTarget -string "PfHm"
defaults write com.apple.finder NewWindowTargetPath -string "file://${HOME}/"

# Show all filename extensions in Finder
defaults write NSGlobalDomain AppleShowAllExtensions -bool true

# Show status bar in Finder
defaults write com.apple.finder ShowStatusBar -bool true

# When performing a search, search the current folder by default
defaults write com.apple.finder FXDefaultSearchScope -string "SCcf"

# Use list view in all Finder windows by default
defaults write com.apple.finder FXPreferredViewStyle -string "Nlsv"

# Disable the warning when changing a file extension
defaults write com.apple.finder FXEnableExtensionChangeWarning -bool false

# Hot corners
# Top right screen corner → Desktop
defaults write com.apple.dock wvous-tr-corner -int 4
defaults write com.apple.dock wvous-tr-modifier -int 0

# Automatically hide and show the Dock
defaults write com.apple.dock autohide -bool true

# Disable "natural" (Lion-style) scrolling
defaults write NSGlobalDomain com.apple.swipescrolldirection -bool false

# Enable full keyboard access for all controls
# (e.g. enable Tab in modal dialogs)
defaults write NSGlobalDomain AppleKeyboardUIMode -int 2

# Use scroll gesture with the Ctrl (^) modifier key to zoom
defaults write com.apple.universalaccess closeViewScrollWheelToggle -bool true

# Set the icon size of Dock items in pixels
defaults write com.apple.dock tilesize -int 61

# Disable Dashboard
defaults write com.apple.dashboard mcx-disabled -bool true

# Don’t show Dashboard as a Space
defaults write com.apple.dock dashboard-in-overlay -bool true

# Show battery percentage
defaults write com.apple.menuextra.battery ShowPercent -string "YES"

# Configure Spotlight search sources
# Yosemite-specific search results (remove them if your are using OS X 10.9 or older) are:
#   MENU_DEFINITION
#   MENU_CONVERSION
#   MENU_EXPRESSION
#   MENU_SPOTLIGHT_SUGGESTIONS (send search queries to Apple)
#   MENU_WEBSEARCH             (send search queries to Apple)
#   MENU_OTHER
defaults write com.apple.spotlight orderedItems -array \
        '{"enabled" = 1;"name" = "APPLICATIONS";}' \
        '{"enabled" = 1;"name" = "SYSTEM_PREFS";}' \
        '{"enabled" = 1;"name" = "DIRECTORIES";}' \
        '{"enabled" = 0;"name" = "PDF";}' \
        '{"enabled" = 0;"name" = "FONTS";}' \
        '{"enabled" = 1;"name" = "DOCUMENTS";}' \
        '{"enabled" = 0;"name" = "MESSAGES";}' \
        '{"enabled" = 0;"name" = "CONTACT";}' \
        '{"enabled" = 0;"name" = "EVENT_TODO";}' \
        '{"enabled" = 0;"name" = "IMAGES";}' \
        '{"enabled" = 0;"name" = "BOOKMARKS";}' \
        '{"enabled" = 0;"name" = "MUSIC";}' \
        '{"enabled" = 0;"name" = "MOVIES";}' \
        '{"enabled" = 0;"name" = "PRESENTATIONS";}' \
        '{"enabled" = 0;"name" = "SPREADSHEETS";}' \
        '{"enabled" = 0;"name" = "SOURCE";}' \
        '{"enabled" = 0;"name" = "MENU_DEFINITION";}' \
        '{"enabled" = 0;"name" = "MENU_OTHER";}' \
        '{"enabled" = 1;"name" = "MENU_CONVERSION";}' \
        '{"enabled" = 1;"name" = "MENU_EXPRESSION";}' \
        '{"enabled" = 0;"name" = "MENU_WEBSEARCH";}' \
        '{"enabled" = 0;"name" = "MENU_SPOTLIGHT_SUGGESTIONS";}'

# Load new settings before rebuilding the index
killall mds > /dev/null 2>&1

# Prevent Time Machine from prompting to use new hard drives as backup volume
defaults write com.apple.TimeMachine DoNotOfferNewDisksForBackup -bool true

# Disable the all too sensitive backswipe in Chrome
defaults write com.google.Chrome AppleEnableSwipeNavigateWithScrolls -bool false

###############################################################################
# Kill affected applications                                                  #
###############################################################################

for app in "Activity Monitor" "Address Book" "Calendar" "Contacts" "cfprefsd" \
        "Dock" "Finder" "Mail" "Messages" "Safari" "SizeUp" "SystemUIServer" \
        "Terminal" "Transmission" "Twitter" "iCal"; do
        killall "${app}" > /dev/null 2>&1
done
echo "Done. Note that some of these changes require a logout/restart to take effect."