The Mac Text Substitution that can be set in System Preferences > Language & Text > Text are stored in ~/Library/Preferences/.GlobalPreferences.plist. See http://apple.stackexchange.com/questions/57960/how-can-i-export-text-substitutions-from-lion-for-import-into-mountain-lion for more info

backup.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<array>
	<dict>
		<key>on</key>
		<integer>1</integer>
		<key>replace</key>
		<string>(c)</string>
		<key>with</key>
		<string>©</string>
	</dict>
	<dict>
		<key>on</key>
		<integer>1</integer>
		<key>replace</key>
		<string>(r)</string>
		<key>with</key>
		<string>®</string>
	</dict>
	<dict>
		<key>on</key>
		<integer>1</integer>
		<key>replace</key>
		<string>(p)</string>
		<key>with</key>
		<string>℗</string>
	</dict>
	<dict>
		<key>on</key>
		<integer>1</integer>
		<key>replace</key>
		<string>TM</string>
		<key>with</key>
		<string>™</string>
	</dict>
	<dict>
		<key>on</key>
		<integer>1</integer>
		<key>replace</key>
		<string>c/o</string>
		<key>with</key>
		<string>℅</string>
	</dict>
	<dict>
		<key>on</key>
		<integer>1</integer>
		<key>replace</key>
		<string>...</string>
		<key>with</key>
		<string>…</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>1/2</string>
		<key>with</key>
		<string>½</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>1/3</string>
		<key>with</key>
		<string>⅓</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>2/3</string>
		<key>with</key>
		<string>⅔</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>1/4</string>
		<key>with</key>
		<string>¼</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>3/4</string>
		<key>with</key>
		<string>¾</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>1/8</string>
		<key>with</key>
		<string>⅛</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>3/8</string>
		<key>with</key>
		<string>⅜</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>5/8</string>
		<key>with</key>
		<string>⅝</string>
	</dict>
	<dict>
		<key>replace</key>
		<string>7/8</string>
		<key>with</key>
		<string>⅞</string>
	</dict>
</array>
</plist>