Very useful macOS tweaks you can do via the command line

.macos

# copied from https://github.com/mathiasbynens/dotfiles/blob/master/.macos

#!/usr/bin/env bash

# ~/.macos — https://mths.be/macos

# 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'

# 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 &

###############################################################################
# General UI/UX                                                               #
###############################################################################

# Set computer name (as done via System Preferences → Sharing)
#sudo scutil --set ComputerName "0x6D746873"
#sudo scutil --set HostName "0x6D746873"
#sudo scutil --set LocalHostName "0x6D746873"
#sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.smb.server NetBIOSName -string "0x6D746873"

# Set standby delay to 24 hours (default is 1 hour)
sudo pmset -a standbydelay 86400

# Disable the sound effects on boot
sudo nvram SystemAudioVolume=" "

# Disable transparency in the menu bar and elsewhere on Yosemite
defaults write com.apple.universalaccess reduceTransparency -bool true

# Set highlight color to green
defaults write NSGlobalDomain AppleHighlightColor -string "0.764700 0.976500 0.568600"

# Set sidebar icon size to medium
defaults write NSGlobalDomain NSTableViewDefaultSizeMode -int 2

# Always show scrollbars
defaults write NSGlobalDomain AppleShowScrollBars -string "Always"
# Possible values: `WhenScrolling`, `Automatic` and `Always`

# Disable the over-the-top focus ring animation
defaults write NSGlobalDomain NSUseAnimatedFocusRing -bool false

# Disable smooth scrolling
# (Uncomment if you’re on an older Mac that messes up the animation)
#defaults write NSGlobalDomain NSScrollAnimationEnabled -bool false

# Increase window resize speed for Cocoa applications
defaults write NSGlobalDomain NSWindowResizeTime -float 0.001

# Expand save panel by default
defaults write NSGlobalDomain NSNavPanelExpandedStateForSaveMode -bool true
defaults write NSGlobalDomain NSNavPanelExpandedStateForSaveMode2 -bool true

# Expand print panel by default
defaults write NSGlobalDomain PMPrintingExpandedStateForPrint -bool true
defaults write NSGlobalDomain PMPrintingExpandedStateForPrint2 -bool true

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

# Remove duplicates in the “Open With” menu (also see `lscleanup` alias)
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister -kill -r -domain local -domain system -domain user

# Display ASCII control characters using caret notation in standard text views
# Try e.g. `cd /tmp; unidecode "\x{0000}" > cc.txt; open -e cc.txt`
defaults write NSGlobalDomain NSTextShowsControlCharacters -bool true

# Disable Resume system-wide
defaults write com.apple.systempreferences NSQuitAlwaysKeepsWindows -bool false

# Disable automatic termination of inactive apps
defaults write NSGlobalDomain NSDisableAutomaticTermination -bool true

# Disable the crash reporter
#defaults write com.apple.CrashReporter DialogType -string "none"

# Set Help Viewer windows to non-floating mode
defaults write com.apple.helpviewer DevMode -bool true

# Fix for the ancient UTF-8 bug in QuickLook (https://mths.be/bbo)
# Commented out, as this is known to cause problems in various Adobe apps :(
# See https://github.com/mathiasbynens/dotfiles/issues/237
#echo "0x08000100:0" > ~/.CFUserTextEncoding

# Reveal IP address, hostname, OS version, etc. when clicking the clock
# in the login window
sudo defaults write /Library/Preferences/com.apple.loginwindow AdminHostInfo HostName

# Restart automatically if the computer freezes
sudo systemsetup -setrestartfreeze on

# Never go into computer sleep mode
sudo systemsetup -setcomputersleep Off > /dev/null

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

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

# Disable smart dashes as they’re annoying when typing code
defaults write NSGlobalDomain NSAutomaticDashSubstitutionEnabled -bool false

# Disable automatic period substitution as it’s annoying when typing code
defaults write NSGlobalDomain NSAutomaticPeriodSubstitutionEnabled -bool false

# Disable smart quotes as they’re annoying when typing code
defaults write NSGlobalDomain NSAutomaticQuoteSubstitutionEnabled -bool false

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

# Set a custom wallpaper image. `DefaultDesktop.jpg` is already a symlink, and
# all wallpapers are in `/Library/Desktop Pictures/`. The default is `Wave.jpg`.
#rm -rf ~/Library/Application Support/Dock/desktoppicture.db
#sudo rm -rf /System/Library/CoreServices/DefaultDesktop.jpg
#sudo ln -s /path/to/your/image /System/Library/CoreServices/DefaultDesktop.jpg

###############################################################################
# SSD-specific tweaks                                                         #
###############################################################################

# Disable hibernation (speeds up entering sleep mode)
sudo pmset -a hibernatemode 0

# Remove the sleep image file to save disk space
sudo rm /private/var/vm/sleepimage
# Create a zero-byte file instead…
sudo touch /private/var/vm/sleepimage
# …and make sure it can’t be rewritten
sudo chflags uchg /private/var/vm/sleepimage

###############################################################################
# Trackpad, mouse, keyboard, Bluetooth accessories, and input                 #
###############################################################################

# Trackpad: enable tap to click for this user and for the login screen
defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad Clicking -bool true
defaults -currentHost write NSGlobalDomain com.apple.mouse.tapBehavior -int 1
defaults write NSGlobalDomain com.apple.mouse.tapBehavior -int 1

# Trackpad: map bottom right corner to right-click
defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad TrackpadCornerSecondaryClick -int 2
defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad TrackpadRightClick -bool true
defaults -currentHost write NSGlobalDomain com.apple.trackpad.trackpadCornerClickBehavior -int 1
defaults -currentHost write NSGlobalDomain com.apple.trackpad.enableSecondaryClick -bool true

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

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

# Enable full keyboard access for all controls
# (e.g. enable Tab in modal dialogs)
defaults write NSGlobalDomain AppleKeyboardUIMode -int 3

# Use scroll gesture with the Ctrl (^) modifier key to zoom
defaults write com.apple.universalaccess closeViewScrollWheelToggle -bool true
defaults write com.apple.universalaccess HIDScrollZoomModifierMask -int 262144
# Follow the keyboard focus while zoomed in
defaults write com.apple.universalaccess closeViewZoomFollowsFocus -bool true

# 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 10

# Set language and text formats
# Note: if you’re in the US, replace `EUR` with `USD`, `Centimeters` with
# `Inches`, `en_GB` with `en_US`, and `true` with `false`.
defaults write NSGlobalDomain AppleLanguages -array "en" "nl"
defaults write NSGlobalDomain AppleLocale -string "en_GB@currency=EUR"
defaults write NSGlobalDomain AppleMeasurementUnits -string "Centimeters"
defaults write NSGlobalDomain AppleMetricUnits -bool true

# Show language menu in the top right corner of the boot screen
sudo defaults write /Library/Preferences/com.apple.loginwindow showInputMenu -bool true

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

# Stop iTunes from responding to the keyboard media keys
#launchctl unload -w /System/Library/LaunchAgents/com.apple.rcd.plist 2> /dev/null

###############################################################################
# Screen                                                                      #
###############################################################################

# 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

# 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                                                                      #
###############################################################################

# Finder: allow quitting via ⌘ + Q; doing so will also hide desktop icons
defaults write com.apple.finder QuitMenuItem -bool true

# Finder: disable window animations and Get Info animations
defaults write com.apple.finder DisableAllAnimations -bool true

# Set Desktop as the default location for new Finder windows
# For other paths, use `PfLo` and `file:///full/path/here/`
defaults write com.apple.finder NewWindowTarget -string "PfDe"
defaults write com.apple.finder NewWindowTargetPath -string "file://${HOME}/Desktop/"

# Show icons for hard drives, servers, and removable media on the desktop
defaults write com.apple.finder ShowExternalHardDrivesOnDesktop -bool true
defaults write com.apple.finder ShowHardDrivesOnDesktop -bool true
defaults write com.apple.finder ShowMountedServersOnDesktop -bool true
defaults write com.apple.finder ShowRemovableMediaOnDesktop -bool true

# Finder: show hidden files by default
#defaults write com.apple.finder AppleShowAllFiles -bool true

# Finder: show all filename extensions
defaults write NSGlobalDomain AppleShowAllExtensions -bool true

# Finder: show status bar
defaults write com.apple.finder ShowStatusBar -bool true

# Finder: show path bar
defaults write com.apple.finder ShowPathbar -bool true

# 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

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

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

# Enable spring loading for directories
defaults write NSGlobalDomain com.apple.springing.enabled -bool true

# Remove the spring loading delay for directories
defaults write NSGlobalDomain com.apple.springing.delay -float 0

# 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

# Disable disk image verification
defaults write com.apple.frameworks.diskimages skip-verify -bool true
defaults write com.apple.frameworks.diskimages skip-verify-locked -bool true
defaults write com.apple.frameworks.diskimages skip-verify-remote -bool true

# Automatically open a new Finder window when a volume is mounted
defaults write com.apple.frameworks.diskimages auto-open-ro-root -bool true
defaults write com.apple.frameworks.diskimages auto-open-rw-root -bool true
defaults write com.apple.finder OpenWindowForNewRemovableDisk -bool true

# Show item info near icons on the desktop and in other icon views
/usr/libexec/PlistBuddy -c "Set :DesktopViewSettings:IconViewSettings:showItemInfo true" ~/Library/Preferences/com.apple.finder.plist
/usr/libexec/PlistBuddy -c "Set :FK_StandardViewSettings:IconViewSettings:showItemInfo true" ~/Library/Preferences/com.apple.finder.plist
/usr/libexec/PlistBuddy -c "Set :StandardViewSettings:IconViewSettings:showItemInfo true" ~/Library/Preferences/com.apple.finder.plist

# Show item info to the right of the icons on the desktop
/usr/libexec/PlistBuddy -c "Set DesktopViewSettings:IconViewSettings:labelOnBottom false" ~/Library/Preferences/com.apple.finder.plist

# 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

# Increase grid spacing for icons on the desktop and in other icon views
/usr/libexec/PlistBuddy -c "Set :DesktopViewSettings:IconViewSettings:gridSpacing 100" ~/Library/Preferences/com.apple.finder.plist
/usr/libexec/PlistBuddy -c "Set :FK_StandardViewSettings:IconViewSettings:gridSpacing 100" ~/Library/Preferences/com.apple.finder.plist
/usr/libexec/PlistBuddy -c "Set :StandardViewSettings:IconViewSettings:gridSpacing 100" ~/Library/Preferences/com.apple.finder.plist

# Increase the size of icons on the desktop and in other icon views
/usr/libexec/PlistBuddy -c "Set :DesktopViewSettings:IconViewSettings:iconSize 80" ~/Library/Preferences/com.apple.finder.plist
/usr/libexec/PlistBuddy -c "Set :FK_StandardViewSettings:IconViewSettings:iconSize 80" ~/Library/Preferences/com.apple.finder.plist
/usr/libexec/PlistBuddy -c "Set :StandardViewSettings:IconViewSettings:iconSize 80" ~/Library/Preferences/com.apple.finder.plist

# Use list view in all Finder windows by default
# Four-letter codes for the other view modes: `icnv`, `clmv`, `Flwv`
defaults write com.apple.finder FXPreferredViewStyle -string "Nlsv"

# Disable the warning before emptying the Trash
defaults write com.apple.finder WarnOnEmptyTrash -bool false

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

# Show the ~/Library folder
chflags nohidden ~/Library

# Show the /Volumes folder
sudo chflags nohidden /Volumes

# Remove Dropbox’s green checkmark icons in Finder
file=/Applications/Dropbox.app/Contents/Resources/emblem-dropbox-uptodate.icns
[ -e "${file}" ] && mv -f "${file}" "${file}.bak"

# Expand the following File Info panes:
# “General”, “Open with”, and “Sharing & Permissions”
defaults write com.apple.finder FXInfoPanesExpanded -dict \
	General -bool true \
	OpenWith -bool true \
	Privileges -bool true

###############################################################################
# Dock, Dashboard, and hot corners                                            #
###############################################################################

# Enable highlight hover effect for the grid view of a stack (Dock)
defaults write com.apple.dock mouse-over-hilite-stack -bool true

# Set the icon size of Dock items to 36 pixels
defaults write com.apple.dock tilesize -int 36

# Change minimize/maximize window effect
defaults write com.apple.dock mineffect -string "scale"

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

# Enable spring loading for all Dock items
defaults write com.apple.dock enable-spring-load-actions-on-all-items -bool true

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

# Wipe all (default) app icons from the Dock
# This is only really useful when setting up a new Mac, or if you don’t use
# the Dock to launch apps.
#defaults write com.apple.dock persistent-apps -array

# Show only open applications in the Dock
#defaults write com.apple.dock static-only -bool true

# Don’t animate opening applications from the Dock
defaults write com.apple.dock launchanim -bool false

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

# Don’t group windows by application in Mission Control
# (i.e. use the old Exposé behavior instead)
defaults write com.apple.dock expose-group-by-app -bool false

# 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

# Remove the auto-hiding Dock delay
defaults write com.apple.dock autohide-delay -float 0
# Remove the animation when hiding/showing the Dock
defaults write com.apple.dock autohide-time-modifier -float 0

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

# Make Dock icons of hidden applications translucent
defaults write com.apple.dock showhidden -bool true

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

# Disable the Launchpad gesture (pinch with thumb and three fingers)
#defaults write com.apple.dock showLaunchpadGestureEnabled -int 0

# Reset Launchpad, but keep the desktop wallpaper intact
find "${HOME}/Library/Application Support/Dock" -name "*-*.db" -maxdepth 1 -delete

# Add iOS & Watch Simulator to Launchpad
sudo ln -sf "/Applications/Xcode.app/Contents/Developer/Applications/Simulator.app" "/Applications/Simulator.app"
sudo ln -sf "/Applications/Xcode.app/Contents/Developer/Applications/Simulator (Watch).app" "/Applications/Simulator (Watch).app"

# Add a spacer to the left side of the Dock (where the applications are)
#defaults write com.apple.dock persistent-apps -array-add '{tile-data={}; tile-type="spacer-tile";}'
# Add a spacer to the right side of the Dock (where the Trash is)
#defaults write com.apple.dock persistent-others -array-add '{tile-data={}; tile-type="spacer-tile";}'

# Hot corners
# Possible values:
#  0: no-op
#  2: Mission Control
#  3: Show application windows
#  4: Desktop
#  5: Start screen saver
#  6: Disable screen saver
#  7: Dashboard
# 10: Put display to sleep
# 11: Launchpad
# 12: Notification Center
# Top left screen corner → Mission Control
defaults write com.apple.dock wvous-tl-corner -int 2
defaults write com.apple.dock wvous-tl-modifier -int 0
# 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
# Bottom left screen corner → Start screen saver
defaults write com.apple.dock wvous-bl-corner -int 5
defaults write com.apple.dock wvous-bl-modifier -int 0

###############################################################################
# Safari & WebKit                                                             #
###############################################################################

# Privacy: don’t send search queries to Apple
defaults write com.apple.Safari UniversalSearchEnabled -bool false
defaults write com.apple.Safari SuppressSearchSuggestions -bool true

# Press Tab to highlight each item on a web page
defaults write com.apple.Safari WebKitTabToLinksPreferenceKey -bool true
defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2TabsToLinks -bool true

# Show the full URL in the address bar (note: this still hides the scheme)
defaults write com.apple.Safari ShowFullURLInSmartSearchField -bool true

# Set Safari’s home page to `about:blank` for faster loading
defaults write com.apple.Safari HomePage -string "about:blank"

# Prevent Safari from opening ‘safe’ files automatically after downloading
defaults write com.apple.Safari AutoOpenSafeDownloads -bool false

# Allow hitting the Backspace key to go to the previous page in history
defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2BackspaceKeyNavigationEnabled -bool true

# Hide Safari’s bookmarks bar by default
defaults write com.apple.Safari ShowFavoritesBar -bool false

# Hide Safari’s sidebar in Top Sites
defaults write com.apple.Safari ShowSidebarInTopSites -bool false

# Disable Safari’s thumbnail cache for History and Top Sites
defaults write com.apple.Safari DebugSnapshotsUpdatePolicy -int 2

# Enable Safari’s debug menu
defaults write com.apple.Safari IncludeInternalDebugMenu -bool true

# Make Safari’s search banners default to Contains instead of Starts With
defaults write com.apple.Safari FindOnPageMatchesWordStartsOnly -bool false

# Remove useless icons from Safari’s bookmarks bar
defaults write com.apple.Safari ProxiesInBookmarksBar "()"

# Enable the Develop menu and the Web Inspector in Safari
defaults write com.apple.Safari IncludeDevelopMenu -bool true
defaults write com.apple.Safari WebKitDeveloperExtrasEnabledPreferenceKey -bool true
defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2DeveloperExtrasEnabled -bool true

# Add a context menu item for showing the Web Inspector in web views
defaults write NSGlobalDomain WebKitDeveloperExtras -bool true

# Enable continuous spellchecking
defaults write com.apple.Safari WebContinuousSpellCheckingEnabled -bool true
# Disable auto-correct
defaults write com.apple.Safari WebAutomaticSpellingCorrectionEnabled -bool false

# Disable AutoFill
defaults write com.apple.Safari AutoFillFromAddressBook -bool false
defaults write com.apple.Safari AutoFillPasswords -bool false
defaults write com.apple.Safari AutoFillCreditCardData -bool false
defaults write com.apple.Safari AutoFillMiscellaneousForms -bool false

# Warn about fraudulent websites
defaults write com.apple.Safari WarnAboutFraudulentWebsites -bool true

# Disable plug-ins
defaults write com.apple.Safari WebKitPluginsEnabled -bool false
defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2PluginsEnabled -bool false

# Disable Java
defaults write com.apple.Safari WebKitJavaEnabled -bool false
defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2JavaEnabled -bool false

# Block pop-up windows
defaults write com.apple.Safari WebKitJavaScriptCanOpenWindowsAutomatically -bool false
defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2JavaScriptCanOpenWindowsAutomatically -bool false

# Disable auto-playing video
#defaults write com.apple.Safari WebKitMediaPlaybackAllowsInline -bool false
#defaults write com.apple.SafariTechnologyPreview WebKitMediaPlaybackAllowsInline -bool false
#defaults write com.apple.Safari com.apple.Safari.ContentPageGroupIdentifier.WebKit2AllowsInlineMediaPlayback -bool false
#defaults write com.apple.SafariTechnologyPreview com.apple.Safari.ContentPageGroupIdentifier.WebKit2AllowsInlineMediaPlayback -bool false

# Enable “Do Not Track”
defaults write com.apple.Safari SendDoNotTrackHTTPHeader -bool true

# Update extensions automatically
defaults write com.apple.Safari InstallExtensionUpdatesAutomatically -bool true

###############################################################################
# Mail                                                                        #
###############################################################################

# Disable send and reply animations in Mail.app
defaults write com.apple.mail DisableReplyAnimations -bool true
defaults write com.apple.mail DisableSendAnimations -bool true

# Copy email addresses as `[email protected]` instead of `Foo Bar <[email protected]>` in Mail.app
defaults write com.apple.mail AddressesIncludeNameOnPasteboard -bool false

# Add the keyboard shortcut ⌘ + Enter to send an email in Mail.app
defaults write com.apple.mail NSUserKeyEquivalents -dict-add "Send" "@\U21a9"

# Display emails in threaded mode, sorted by date (oldest at the top)
defaults write com.apple.mail DraftsViewerAttributes -dict-add "DisplayInThreadedMode" -string "yes"
defaults write com.apple.mail DraftsViewerAttributes -dict-add "SortedDescending" -string "yes"
defaults write com.apple.mail DraftsViewerAttributes -dict-add "SortOrder" -string "received-date"

# Disable inline attachments (just show the icons)
defaults write com.apple.mail DisableInlineAttachmentViewing -bool true

# Disable automatic spell checking
defaults write com.apple.mail SpellCheckingBehavior -string "NoSpellCheckingEnabled"

###############################################################################
# Spotlight                                                                   #
###############################################################################

# Hide Spotlight tray-icon (and subsequent helper)
#sudo chmod 600 /System/Library/CoreServices/Search.bundle/Contents/MacOS/Search
# Disable Spotlight indexing for any volume that gets mounted and has not yet
# been indexed before.
# Use `sudo mdutil -i off "/Volumes/foo"` to stop indexing any volume.
sudo defaults write /.Spotlight-V100/VolumeConfiguration Exclusions -array "/Volumes"
# Change indexing order and disable some search results
# Yosemite-specific search results (remove them if you are using macOS 10.9 or older):
# 	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" = 1;"name" = "PDF";}' \
	'{"enabled" = 1;"name" = "FONTS";}' \
	'{"enabled" = 0;"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" = 0;"name" = "MENU_CONVERSION";}' \
	'{"enabled" = 0;"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
# Make sure indexing is enabled for the main volume
sudo mdutil -i on / > /dev/null
# Rebuild the index from scratch
sudo mdutil -E / > /dev/null

###############################################################################
# Terminal & iTerm 2                                                          #
###############################################################################

# Only use UTF-8 in Terminal.app
defaults write com.apple.terminal StringEncodings -array 4

# Use a modified version of the Solarized Dark theme by default in Terminal.app
osascript <<EOD

tell application "Terminal"

	local allOpenedWindows
	local initialOpenedWindows
	local windowID
	set themeName to "Solarized Dark xterm-256color"

	(* Store the IDs of all the open terminal windows. *)
	set initialOpenedWindows to id of every window

	(* Open the custom theme so that it gets added to the list
	   of available terminal themes (note: this will open two
	   additional terminal windows). *)
	do shell script "open '$HOME/init/" & themeName & ".terminal'"

	(* Wait a little bit to ensure that the custom theme is added. *)
	delay 1

	(* Set the custom theme as the default terminal theme. *)
	set default settings to settings set themeName

	(* Get the IDs of all the currently opened terminal windows. *)
	set allOpenedWindows to id of every window

	repeat with windowID in allOpenedWindows

		(* Close the additional windows that were opened in order
		   to add the custom theme to the list of terminal themes. *)
		if initialOpenedWindows does not contain windowID then
			close (every window whose id is windowID)

		(* Change the theme for the initial opened terminal windows
		   to remove the need to close them in order for the custom
		   theme to be applied. *)
		else
			set current settings of tabs of (every window whose id is windowID) to settings set themeName
		end if

	end repeat

end tell

EOD

# Enable “focus follows mouse” for Terminal.app and all X11 apps
# i.e. hover over a window and start typing in it without clicking first
#defaults write com.apple.terminal FocusFollowsMouse -bool true
#defaults write org.x.X11 wm_ffm -bool true

# Enable Secure Keyboard Entry in Terminal.app
# See: https://security.stackexchange.com/a/47786/8918
defaults write com.apple.terminal SecureKeyboardEntry -bool true

# Disable the annoying line marks
defaults write com.apple.Terminal ShowLineMarks -int 0

# Install the Solarized Dark theme for iTerm
open "${HOME}/init/Solarized Dark.itermcolors"

# Don’t display the annoying prompt when quitting iTerm
defaults write com.googlecode.iterm2 PromptOnQuit -bool false

###############################################################################
# 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

###############################################################################
# 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

###############################################################################
# Address Book, Dashboard, iCal, TextEdit, and Disk Utility                   #
###############################################################################

# Enable the debug menu in Address Book
defaults write com.apple.addressbook ABShowDebugMenu -bool true

# Enable Dashboard dev mode (allows keeping widgets on the desktop)
defaults write com.apple.dashboard devmode -bool true

# Enable the debug menu in iCal (pre-10.8)
defaults write com.apple.iCal IncludeDebugMenu -bool true

# Use plain text mode for new TextEdit documents
defaults write com.apple.TextEdit RichText -int 0
# Open and save files as UTF-8 in TextEdit
defaults write com.apple.TextEdit PlainTextEncoding -int 4
defaults write com.apple.TextEdit PlainTextEncodingForWrite -int 4

# Enable the debug menu in Disk Utility
defaults write com.apple.DiskUtility DUDebugMenuEnabled -bool true
defaults write com.apple.DiskUtility advanced-image-options -bool true

# Auto-play videos when opened with QuickTime Player
defaults write com.apple.QuickTimePlayerX MGPlayMovieOnOpen -bool true

###############################################################################
# Mac App Store                                                               #
###############################################################################

# Enable the WebKit Developer Tools in the Mac App Store
defaults write com.apple.appstore WebKitDeveloperExtras -bool true

# Enable Debug Menu in the Mac App Store
defaults write com.apple.appstore ShowDebugMenu -bool true

# Enable the automatic update check
defaults write com.apple.SoftwareUpdate AutomaticCheckEnabled -bool true

# Check for software updates daily, not just once per week
defaults write com.apple.SoftwareUpdate ScheduleFrequency -int 1

# Download newly available updates in background
defaults write com.apple.SoftwareUpdate AutomaticDownload -int 1

# Install System data files & security updates
defaults write com.apple.SoftwareUpdate CriticalUpdateInstall -int 1

# Automatically download apps purchased on other Macs
defaults write com.apple.SoftwareUpdate ConfigDataInstall -int 1

# Turn on app auto-update
defaults write com.apple.commerce AutoUpdate -bool true

# Allow the App Store to reboot machine on macOS updates
defaults write com.apple.commerce AutoUpdateRestartRequired -bool true

###############################################################################
# Photos                                                                      #
###############################################################################

# Prevent Photos from opening automatically when devices are plugged in
defaults -currentHost write com.apple.ImageCapture disableHotPlug -bool true

###############################################################################
# Messages                                                                    #
###############################################################################

# Disable automatic emoji substitution (i.e. use plain text smileys)
defaults write com.apple.messageshelper.MessageController SOInputLineSettings -dict-add "automaticEmojiSubstitutionEnablediMessage" -bool false

# Disable smart quotes as it’s annoying for messages that contain code
defaults write com.apple.messageshelper.MessageController SOInputLineSettings -dict-add "automaticQuoteSubstitutionEnabled" -bool false

# Disable continuous spell checking
defaults write com.apple.messageshelper.MessageController SOInputLineSettings -dict-add "continuousSpellCheckingEnabled" -bool false

###############################################################################
# Google Chrome & Google Chrome Canary                                        #
###############################################################################

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

# Disable the all too sensitive backswipe on Magic Mouse
defaults write com.google.Chrome AppleEnableMouseSwipeNavigateWithScrolls -bool false
defaults write com.google.Chrome.canary AppleEnableMouseSwipeNavigateWithScrolls -bool false

# Use the system-native print preview dialog
defaults write com.google.Chrome DisablePrintPreview -bool true
defaults write com.google.Chrome.canary DisablePrintPreview -bool true

# Expand the print dialog by default
defaults write com.google.Chrome PMPrintingExpandedStateForPrint2 -bool true
defaults write com.google.Chrome.canary PMPrintingExpandedStateForPrint2 -bool true

###############################################################################
# GPGMail 2                                                                   #
###############################################################################

# Disable signing emails by default
defaults write ~/Library/Preferences/org.gpgtools.gpgmail SignNewEmailsByDefault -bool false

###############################################################################
# Opera & Opera Developer                                                     #
###############################################################################

# Expand the print dialog by default
defaults write com.operasoftware.Opera PMPrintingExpandedStateForPrint2 -boolean true
defaults write com.operasoftware.OperaDeveloper PMPrintingExpandedStateForPrint2 -boolean true

###############################################################################
# SizeUp.app                                                                  #
###############################################################################

# Start SizeUp at login
defaults write com.irradiatedsoftware.SizeUp StartAtLogin -bool true

# Don’t show the preferences window on next start
defaults write com.irradiatedsoftware.SizeUp ShowPrefsOnNextStart -bool false

###############################################################################
# Sublime Text                                                                #
###############################################################################

# Install Sublime Text settings
cp -r init/Preferences.sublime-settings ~/Library/Application\ Support/Sublime\ Text*/Packages/User/Preferences.sublime-settings 2> /dev/null

###############################################################################
# Spectacle.app                                                               #
###############################################################################

# Set up my preferred keyboard shortcuts
cp -r init/spectacle.json ~/Library/Application\ Support/Spectacle/Shortcuts.json 2> /dev/null

###############################################################################
# Transmission.app                                                            #
###############################################################################

# Use `~/Documents/Torrents` to store incomplete downloads
defaults write org.m0k.transmission UseIncompleteDownloadFolder -bool true
defaults write org.m0k.transmission IncompleteDownloadFolder -string "${HOME}/Documents/Torrents"

# Use `~/Downloads` to store completed downloads
defaults write org.m0k.transmission DownloadLocationConstant -bool true

# Don’t prompt for confirmation before downloading
defaults write org.m0k.transmission DownloadAsk -bool false
defaults write org.m0k.transmission MagnetOpenAsk -bool false

# Don’t prompt for confirmation before removing non-downloading active transfers
defaults write org.m0k.transmission CheckRemoveDownloading -bool true

# Trash original torrent files
defaults write org.m0k.transmission DeleteOriginalTorrent -bool true

# Hide the donate message
defaults write org.m0k.transmission WarningDonate -bool false
# Hide the legal disclaimer
defaults write org.m0k.transmission WarningLegal -bool false

# IP block list.
# Source: https://giuliomac.wordpress.com/2014/02/19/best-blocklist-for-transmission/
defaults write org.m0k.transmission BlocklistNew -bool true
defaults write org.m0k.transmission BlocklistURL -string "http://john.bitsurge.net/public/biglist.p2p.gz"
defaults write org.m0k.transmission BlocklistAutoUpdate -bool true

# Randomize port on launch
defaults write org.m0k.transmission RandomPort -bool true

###############################################################################
# Twitter.app                                                                 #
###############################################################################

# Disable smart quotes as it’s annoying for code tweets
defaults write com.twitter.twitter-mac AutomaticQuoteSubstitutionEnabled -bool false

# Show the app window when clicking the menu bar icon
defaults write com.twitter.twitter-mac MenuItemBehavior -int 1

# Enable the hidden ‘Develop’ menu
defaults write com.twitter.twitter-mac ShowDevelopMenu -bool true

# Open links in the background
defaults write com.twitter.twitter-mac openLinksInBackground -bool true

# Allow closing the ‘new tweet’ window by pressing `Esc`
defaults write com.twitter.twitter-mac ESCClosesComposeWindow -bool true

# Show full names rather than Twitter handles
defaults write com.twitter.twitter-mac ShowFullNames -bool true

# Hide the app in the background if it’s not the front-most window
defaults write com.twitter.twitter-mac HideInBackground -bool true

###############################################################################
# Tweetbot.app                                                                #
###############################################################################

# Bypass the annoyingly slow t.co URL shortener
defaults write com.tapbots.TweetbotMac OpenURLsDirectly -bool true

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

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