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Article:
  Scripting Mac OS X
Subject:   Defaults Tips & Tricks
Date:   2003-11-10 15:49:22
From:   anonymous2
Just read your O' Reilly article, good stuff! I have one comment. One thing I learned from my last rev of LoginWindow Manager is that its probably best to use the system-domain loginwindow pref instead of root's:


sudo defaults xxx /Library/Preferences/com.apple.loginwindow


instead of


sudo defaults xxx com.apple.loginwindow



It doesn't really matter which you use, but the /Library/Preferences item is easier to get to from a GUI and just seems like "the right thing to do". Incidentally, you can use the defaults command to read/write just about any xml file, whether its in the defaults path or not:


[anonymous:~] defaults read /System/Library/CoreServices/SystemVersion
{
ProductBuildVersion = 7B85;
ProductCopyright = "Apple Computer, Inc. 1983-2003";
ProductName = "Mac OS X";
ProductUserVisibleVersion = "10.3";
ProductVersion = "10.3";
}
[anonymous:~] defaults read /System/Library/CoreServices/SystemVersion
ProductVersion
10.3


And you can even use it to manage ByHost items that are, for
example, in a user template folder:


sudo defaults -currentHost write
/Library/Management/default/Library/Preferences/ByHost/com.apple.screensaver
idleTime 300


And that's really nice because it allows you to avoid dealing with the actual name of the file. Pretty damn cool!