mdsh.com/wiki

Line 1:
-	[<java>]sudo installer -pkg MacPorts-2.1.2-10.6-SnowLeopard.pkg -target /[</java>]	+	{{{__sudo installer -pkg MacPorts-2.1.2-10.6-SnowLeopard.pkg -target /__}}}
Line 2:
-	[<java>]sudo port clean --all all[</java>]	+	{{{__sudo port clean --all all__}}}
Line 4:
-	[<java>]sudo port -d selfupdate[</java>]	+	{{{__sudo port -d selfupdate__}}}
Line 6:
-	[<java>]sudo port upgrade outdated[</java>]	+	{{{__sudo port upgrade outdated__}}}
		+
		+
		+	Reinstall ports
		+
		+	Save the currently installed ports:
		+
		+	{{{__port -qv installed > macPorts.txt__}}}
		+
		+	Uninstall the currently installed ports:
		+
		+	{{{__sudo port -f uninstall installed__}}}
		+
		+	Clean any partial builds:
		+
		+	{{{__sudo port clean all__}}}
		+
		+	Re-install the ports:
		+
		+	{{{__curl -O https://svn.macports.org/repository/macports/contrib/restore_ports/restore_ports.tcl
		+	chmod +x restore_ports.tcl
		+	sudo ./restore_ports.tcl macPorts.txt__}}}