一些方便系统使用的termnal命令

应该都可以在apple网站开发者一栏里有相关文档

1
defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES
在finder标题栏显示路径，注意是标题栏不是toolbar

2
http://www.macosxtips.co.uk/index_files/terminal-commands-for-hidden-mac-os-x-
settings.html

defaults write com.apple.Dock showhidden -bool YES
使得隐藏的程序在dock中的图标变得透明，用来区别隐藏程序

3
defaults write com.apple.dashboard devmode YES
This allows you to drag widgets out of Dashboard onto the d
esktop. Requires the dock to be relaunched to take effect, so type "killall
Dock" and press enter. Now, if you click and hold onto a widget in the
dashboard and press F12 to return to the desktop, the widget won't disappear
with the rest. Put NO at the end to reverse

4. defaults write com.apple.mail PreferPlainText -bool TRUE
Forces all mail to be displayed as plain text. Replace TRUE with FALSE to
reverse.

5. defaults write -g NSNavPanelExpandedStateForSaveMode -bool TRUE
Sets expanded save dialogs as default (showing column/list view of folders
rather than a drop down menu). Replace TRUE with FALSE to reverse.

6
7. defaults write /Library/Preferences/com.apple.loginwindow AdminHostInfo
SystemVersion
Displays useful system stats in the login window. More details here. Replace "
SystemVersion" with one of the following for different stats:
SystemBuild
SerialNumber
IPAddress
DSStatus
Time
HostName

10. defaults write "Apple Global Domain" AppleScrollBarVariant DoubleBothPuts
double scroll arrows at both ends of scroll bar. Use Appearance pane in system
preferences to reset.