macos.sh

#!/bin/bash

# Close any open System Preferences panes to prevent them from overriding settings
osascript -e 'tell application "System Preferences" to quit'

# Ask for the administrator password upfront
sudo -v

# Keep-alive: update existing `sudo` time stamp until script 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)
read -rp "Enter your desired computer name: " computer_name
sudo scutil --set ComputerName "$computer_name"
sudo scutil --set HostName "$computer_name"
sudo scutil --set LocalHostName "$computer_name"
sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.smb.server NetBIOSName -string "$computer_name"

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

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

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

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

# Trackpad: enable tap to click
defaults write com.apple.driver.AppleBluetoothMultitouch.trackpad Clicking -bool true
defaults -currentHost write NSGlobalDomain com.apple.mouse.tapBehavior -int 1

# Enable full keyboard access for all controls
defaults write NSGlobalDomain AppleKeyboardUIMode -int 3

###############################################################################
# Finder                                                                        #
###############################################################################

# Show hidden files by default
defaults write com.apple.finder AppleShowAllFiles -bool true

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

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

# Show path bar
defaults write com.apple.finder ShowPathbar -bool true

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

# 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

###############################################################################
# Dock                                                                         #
###############################################################################

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

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

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

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

# Enable Secure Keyboard Entry in Terminal.app
defaults write com.apple.terminal SecureKeyboardEntry -bool true

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

for app in "Dock" "Finder" "SystemUIServer" "Terminal"; do
    killall "${app}" &> /dev/null
done

echo "Done. Note that some of these changes require a logout/restart to take effect."