# 애니메이션 속도
defaults write com.apple.dock autohide-time-modifier -float 0.25;killall Dock
# 애니메이션 효과
defaults write com.apple.dock autohide-time-modifier -float 0;killall Dock
# 독 올라오는 시간
defaults write com.apple.dock autohide-delay -float 0;killall Dock
# 원상복구
defaults delete com.apple.dock autohide && defaults delete com.apple.dock autohide-delay && defaults delete com.apple.dock autohide-time-modifier && killall Dock