[Samsung Galaxy Nexus] CMNein:
Listed the contents of the system/audio/ringtone and notifications directories and concatenated them with the appropriate commands. I haven't added these to the removal part of my script yet, but will shortly, before tomorrow's flash if I'm not lazy.

I'll delete the ones I want to keep from the list, and likely add those ones to the back up part of the script as well.

Here is a complete list with the rm command + path for ringtones:

rm /system/media/audio/ringtones/Acheron.ogg
rm /system/media/audio/ringtones/Andromeda.ogg
rm /system/media/audio/ringtones/Aquila.ogg
rm /system/media/audio/ringtones/ArgoNavis.ogg
rm /system/media/audio/ringtones/BentleyDubs.ogg
rm /system/media/audio/ringtones/Big_Easy.ogg
rm /system/media/audio/ringtones/BirdLoop.ogg
rm /system/media/audio/ringtones/Bollywood.ogg
rm /system/media/audio/ringtones/Bongo.ogg
rm /system/media/audio/ringtones/Bootes.ogg
rm /system/media/audio/ringtones/Boxbeat.ogg
rm /system/media/audio/ringtones/BussaMove.ogg
rm /system/media/audio/ringtones/Cairo.ogg
rm /system/media/audio/ringtones/Calypso_Steel.ogg
rm /system/media/audio/ringtones/CanisMajor.ogg
rm /system/media/audio/ringtones/CaribbeanIce.ogg
rm /system/media/audio/ringtones/Carina.ogg
rm /system/media/audio/ringtones/Cassiopeia.ogg
rm /system/media/audio/ringtones/Centaurus.ogg
rm /system/media/audio/ringtones/Champagne_Edition.ogg
rm /system/media/audio/ringtones/Club_Cubano.ogg
rm /system/media/audio/ringtones/CrayonRock.ogg
rm /system/media/audio/ringtones/CrazyDream.ogg
rm /system/media/audio/ringtones/CurveBall.ogg
rm /system/media/audio/ringtones/CyanTone.ogg
rm /system/media/audio/ringtones/Cygnus.ogg
rm /system/media/audio/ringtones/DancinFool.ogg
rm /system/media/audio/ringtones/Ding.ogg
rm /system/media/audio/ringtones/DonMessWivIt.ogg
rm /system/media/audio/ringtones/Draco.ogg
rm /system/media/audio/ringtones/DreamTheme.ogg
rm /system/media/audio/ringtones/Eastern_Sky.ogg
rm /system/media/audio/ringtones/Enter_the_Nexus.ogg
rm /system/media/audio/ringtones/Eridani.ogg
rm /system/media/audio/ringtones/EtherShake.ogg
rm /system/media/audio/ringtones/FriendlyGhost.ogg
rm /system/media/audio/ringtones/Funk_Yall.ogg
rm /system/media/audio/ringtones/GameOverGuitar.ogg
rm /system/media/audio/ringtones/Gigolo.ogg
rm /system/media/audio/ringtones/Gimme_Mo_Town.ogg
rm /system/media/audio/ringtones/Girtab.ogg
rm /system/media/audio/ringtones/Glacial_Groove.ogg
rm /system/media/audio/ringtones/Growl.ogg
rm /system/media/audio/ringtones/HalfwayHome.ogg
rm /system/media/audio/ringtones/House_of_house.ogg
rm /system/media/audio/ringtones/Hydra.ogg
rm /system/media/audio/ringtones/InsertCoin.ogg
rm /system/media/audio/ringtones/Iridium.ogg
rm /system/media/audio/ringtones/LoopyLounge.ogg
rm /system/media/audio/ringtones/LoveFlute.ogg
rm /system/media/audio/ringtones/Lyra.ogg
rm /system/media/audio/ringtones/Machina.ogg
rm /system/media/audio/ringtones/MidEvilJaunt.ogg
rm /system/media/audio/ringtones/MildlyAlarming.ogg
rm /system/media/audio/ringtones/Nairobi.ogg
rm /system/media/audio/ringtones/Nasqueron.ogg
rm /system/media/audio/ringtones/Nassau.ogg
rm /system/media/audio/ringtones/NewPlayer.ogg
rm /system/media/audio/ringtones/Noises1.ogg
rm /system/media/audio/ringtones/Noises2.ogg
rm /system/media/audio/ringtones/Noises3.ogg
rm /system/media/audio/ringtones/No_Limits.ogg
rm /system/media/audio/ringtones/OrganDub.ogg
rm /system/media/audio/ringtones/Orion.ogg
rm /system/media/audio/ringtones/Paradise_Island.ogg
rm /system/media/audio/ringtones/Pegasus.ogg
rm /system/media/audio/ringtones/Perseus.ogg
rm /system/media/audio/ringtones/Playa.ogg
rm /system/media/audio/ringtones/Pyxis.ogg
rm /system/media/audio/ringtones/Revelation.ogg
rm /system/media/audio/ringtones/Rigel.ogg
rm /system/media/audio/ringtones/Road_Trip.ogg
rm /system/media/audio/ringtones/RomancingTheTone.ogg
rm /system/media/audio/ringtones/Safari.ogg
rm /system/media/audio/ringtones/Savannah.ogg
rm /system/media/audio/ringtones/Scarabaeus.ogg
rm /system/media/audio/ringtones/Sceptrum.ogg
rm /system/media/audio/ringtones/Seville.ogg
rm /system/media/audio/ringtones/Shes_All_That.ogg
rm /system/media/audio/ringtones/SilkyWay.ogg
rm /system/media/audio/ringtones/Silmarillia.ogg
rm /system/media/audio/ringtones/SitarVsSitar.ogg
rm /system/media/audio/ringtones/Solarium.ogg
rm /system/media/audio/ringtones/SpringyJalopy.ogg
rm /system/media/audio/ringtones/Steppin_Out.ogg
rm /system/media/audio/ringtones/Terminated.ogg
rm /system/media/audio/ringtones/Testudo.ogg
rm /system/media/audio/ringtones/Themos.ogg
rm /system/media/audio/ringtones/Third_Eye.ogg
rm /system/media/audio/ringtones/Thunderfoot.ogg
rm /system/media/audio/ringtones/TwirlAway.ogg
rm /system/media/audio/ringtones/UrsaMinor.ogg
rm /system/media/audio/ringtones/VeryAlarmed.ogg
rm /system/media/audio/ringtones/Vespa.ogg
rm /system/media/audio/ringtones/World.ogg
rm /system/media/audio/ringtones/Zeta.ogg

And for notifications:

rm /system/media/audio/notifications/Adara.ogg
rm /system/media/audio/notifications/Aldebaran.ogg
rm /system/media/audio/notifications/Altair.ogg
rm /system/media/audio/notifications/Antares.ogg
rm /system/media/audio/notifications/Antimony.ogg
rm /system/media/audio/notifications/Arcturus.ogg
rm /system/media/audio/notifications/Argon.ogg
rm /system/media/audio/notifications/Beryllium.ogg
rm /system/media/audio/notifications/Betelgeuse.ogg
rm /system/media/audio/notifications/BrassAndroid.ogg
rm /system/media/audio/notifications/Canopus.ogg
rm /system/media/audio/notifications/Capella.ogg
rm /system/media/audio/notifications/Castor.ogg
rm /system/media/audio/notifications/CetiAlpha.ogg
rm /system/media/audio/notifications/Cobalt.ogg
rm /system/media/audio/notifications/CyanMail.ogg
rm /system/media/audio/notifications/CyanMessage.ogg
rm /system/media/audio/notifications/CyanPing.ogg
rm /system/media/audio/notifications/DearDeer.ogg
rm /system/media/audio/notifications/Deneb.ogg
rm /system/media/audio/notifications/Doink.ogg
rm /system/media/audio/notifications/DontPanic.ogg
rm /system/media/audio/notifications/Electra.ogg
rm /system/media/audio/notifications/Fluorine.ogg
rm /system/media/audio/notifications/Fomalhaut.ogg
rm /system/media/audio/notifications/Gallium.ogg
rm /system/media/audio/notifications/Helium.ogg
rm /system/media/audio/notifications/Highwire.ogg
rm /system/media/audio/notifications/Hojus.ogg
rm /system/media/audio/notifications/Iridium.ogg
rm /system/media/audio/notifications/Krypton.ogg
rm /system/media/audio/notifications/KzurbSonar.ogg
rm /system/media/audio/notifications/Lalande.ogg
rm /system/media/audio/notifications/Merope.ogg
rm /system/media/audio/notifications/Mira.ogg
rm /system/media/audio/notifications/Naughty.ogg
rm /system/media/audio/notifications/OnTheHunt.ogg
rm /system/media/audio/notifications/Palladium.ogg
rm /system/media/audio/notifications/Polaris.ogg
rm /system/media/audio/notifications/Pollux.ogg
rm /system/media/audio/notifications/Pong.ogg
rm /system/media/audio/notifications/Procyon.ogg
rm /system/media/audio/notifications/Proxima.ogg
rm /system/media/audio/notifications/Radon.ogg
rm /system/media/audio/notifications/Rang.ogg
rm /system/media/audio/notifications/Regulus.ogg
rm /system/media/audio/notifications/Rubidium.ogg
rm /system/media/audio/notifications/Selenium.ogg
rm /system/media/audio/notifications/Shaula.ogg
rm /system/media/audio/notifications/Sirius.ogg
rm /system/media/audio/notifications/Sirrah.ogg
rm /system/media/audio/notifications/Spica.ogg
rm /system/media/audio/notifications/Stone.ogg
rm /system/media/audio/notifications/Strontium.ogg
rm /system/media/audio/notifications/Tejat.ogg
rm /system/media/audio/notifications/Thallium.ogg
rm /system/media/audio/notifications/Upsilon.ogg
rm /system/media/audio/notifications/Vega.ogg
rm /system/media/audio/notifications/Voila.ogg
rm /system/media/audio/notifications/Xenon.ogg
rm /system/media/audio/notifications/Zirconium.ogg