mac-defaults.sh

#!/usr/bin/env bash

# Ask for the administrator password upfront
sudo -v

# Keep-alive: update existing `sudo` time stamp until `.macos` has finished
while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &

# Mac System Config

# Close any open System Preferences panes, to prevent them from overriding
# settings we’re about to change
osascript -e 'tell application "System Preferences" to quit'

# Set the timezone; see `sudo systemsetup -listtimezones` for other values
sudo systemsetup -settimezone "America/New_York" > /dev/null

# Save to disk (not to iCloud) by default
defaults write NSGlobalDomain NSDocumentSaveNewDocumentsToCloud -bool false

# Automatically quit printer app once the print jobs complete
defaults write com.apple.print.PrintingPrefs "Quit When Finished" -bool true

# Disable automatic capitalization as it’s annoying when typing code
defaults write NSGlobalDomain NSAutomaticCapitalizationEnabled -bool false

# Increase sound quality for Bluetooth headphones/headsets
defaults write com.apple.BluetoothAudioAgent "Apple Bitpool Min (editable)" -int 40

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

#### Keyboard Speed

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

# Set a blazingly fast keyboard repeat rate
defaults write NSGlobalDomain KeyRepeat -int 1
defaults write NSGlobalDomain InitialKeyRepeat -int 20

# 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

#### Screenshots

# Save screenshots to the desktop
defaults write com.apple.screencapture location -string "${HOME}/Desktop"

# Save screenshots in PNG format (other options: BMP, GIF, JPG, PDF, TIFF)
defaults write com.apple.screencapture type -string "png"

# Disable shadow in screenshots
defaults write com.apple.screencapture disable-shadow -bool true

# Enable subpixel font rendering on non-Apple LCDs
# Reference: https://github.com/kevinSuttle/macOS-Defaults/issues/17#issuecomment-266633501
defaults write NSGlobalDomain AppleFontSmoothing -int 1

# Enable HiDPI display modes (requires restart)
sudo defaults write /Library/Preferences/com.apple.windowserver DisplayResolutionEnabled -bool true

#### Finder

# Display full POSIX path as Finder window title
defaults write com.apple.finder _FXShowPosixPathInTitle -bool true

# Keep folders on top when sorting by name
defaults write com.apple.finder _FXSortFoldersFirst -bool true

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

# Avoid creating .DS_Store files on network or USB volumes
defaults write com.apple.desktopservices DSDontWriteNetworkStores -bool true
defaults write com.apple.desktopservices DSDontWriteUSBStores -bool true

# Enable snap-to-grid for icons on the desktop and in other icon views
/usr/libexec/PlistBuddy -c "Set :DesktopViewSettings:IconViewSettings:arrangeBy grid" ~/Library/Preferences/com.apple.finder.plist
/usr/libexec/PlistBuddy -c "Set :FK_StandardViewSettings:IconViewSettings:arrangeBy grid" ~/Library/Preferences/com.apple.finder.plist
/usr/libexec/PlistBuddy -c "Set :StandardViewSettings:IconViewSettings:arrangeBy grid" ~/Library/Preferences/com.apple.finder.plist

# Show the ~/Library folder
chflags nohidden ~/Library && xattr -d com.apple.FinderInfo ~/Library

# Enable AirDrop over Ethernet and on unsupported Macs running Lion
defaults write com.apple.NetworkBrowser BrowseAllInterfaces -bool true

# Disable Notification Center and remove the menu bar icon
launchctl unload -w /System/Library/LaunchAgents/com.apple.notificationcenterui.plist 2> /dev/null


#### Time Machine

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

# Disable local Time Machine backups
hash tmutil &> /dev/null && sudo tmutil disablelocal

#### Dock, Dashboard, and Hot Corners

# Minimize windows into their application’s icon
defaults write com.apple.dock minimize-to-application -bool true

# Show indicator lights for open applications in the Dock
defaults write com.apple.dock show-process-indicators -bool true

# Speed up Mission Control animations
defaults write com.apple.dock expose-animation-duration -float 0.1

# 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

# Don’t automatically rearrange Spaces based on most recent use
defaults write com.apple.dock mru-spaces -bool false

# Don’t show recent applications in Dock
defaults write com.apple.dock show-recents -bool false

# Hot Corners: Bottom right corner → Start screen saver
defaults write com.apple.dock wvous-br-corner -int 5
defaults write com.apple.dock wvous-br-modifier -int 0

#### Activity Monitor

# Show the main window when launching Activity Monitor
defaults write com.apple.ActivityMonitor OpenMainWindow -bool true

# Visualize CPU usage in the Activity Monitor Dock icon
defaults write com.apple.ActivityMonitor IconType -int 5

# Show all processes in Activity Monitor
defaults write com.apple.ActivityMonitor ShowCategory -int 0

# Sort Activity Monitor results by CPU usage
defaults write com.apple.ActivityMonitor SortColumn -string "CPUUsage"
defaults write com.apple.ActivityMonitor SortDirection -int 0

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

for app in "Activity Monitor" \
    "Address Book" \
    "Calendar" \
    "cfprefsd" \
    "Contacts" \
    "Dock" \
    "Finder" \
    "Mail" \
    "Messages" \
    "Photos" \
    "Safari" \
    "Rectangle" \
    "SystemUIServer" \
    "Terminal" \
    "iCal"; do
    killall "${app}" &> /dev/null
done

echo "Done. Restart for changes to take effect"