defaultsコマンドを使ってアプリケーションやシステムの設定を読み書きできる
- defaults(1) Mac OS X Manual Page
CocoaではNSUserDefaultsクラスを使う
下のbashとAppleScriptは同じ操作
defaultsWriteとdefaultsDeleteは一度に複数の項目を対象にできる

defaults read com.apple.dock
defaults write com.apple.dock pinning -string start
defaults delete com.apple.dock pinning

defaultsRead_Write_Delete.scpt

use framework "Foundation"

my defaultsRead("com.apple.dock")
my defaultsWrite("com.apple.dock", {pinning:"start"})
my defaultsDelete("com.apple.dock", {"pinning"})

on defaultsRead(domain as text)
	--require framework: Foundation
	set defaults to current application's NSUserDefaults's standardUserDefaults()
	return (defaults's persistentDomainForName:domain) as record
end defaultsRead

on defaultsWrite(domain as text, writeDictionary as record)
	--require framework: Foundation
	set defaults to current application's NSUserDefaults's standardUserDefaults()
	set preferencesDictionary to (defaults's persistentDomainForName:domain)'s mutableCopy()
	preferencesDictionary's addEntriesFromDictionary:writeDictionary
	defaults's setPersistentDomain:preferencesDictionary forName:domain
	my defaultsSynchronize()
end defaultsWrite

on defaultsDelete(domain as text, deleteKeys as list)
	--require framework: Foundation
	set defaults to current application's NSUserDefaults's standardUserDefaults()
	set preferencesDictionary to (defaults's persistentDomainForName:domain)'s mutableCopy()
	preferencesDictionary's removeObjectsForKeys:deleteKeys
	defaults's setPersistentDomain:preferencesDictionary forName:domain
	my defaultsSynchronize()
end defaultsDelete

on defaultsSynchronize()
	--require framework: Foundation
	set success to current application's NSUserDefaults's standardUserDefaults()'s synchronize()
	if not success then
		error "Synchronization in NSUserDefaults has failed"
	end if
end defaultsSynchronize

更新履歴

2016-01-25: Cocoaの機能を使って作成
2016-02-20: defaultsSynchronizeハンドラ作成