RunUO is still in beta and there are very few tutorials written with regards to writing C# scripts for the EMU. DustBuster has posted some exelent tutorials in the 'Script Support' section that would give anyone a good place to start.
Zippy also started a section at http://www.runuo.com/tutorial/ that has great promise.
As with anything new there is an initial stage where you need to get familiar with both the emu and the language. With your experience it should not be difficult to tinker a basic script after you read those few tutorials.
I agree that coding in C# could seem overwhelming at the start but once you understand the RunUO structure and have a basic knowledge of C# you will realise how limiting scripting languages in other EMUs have been and what a liberating experience working with the RunUO and C# combo is.
If I had to choose a slightly steaper learning curve for C# vs a for more limiting scripting language then give me C# any day.
As far as searching text in files, I'm an old old DOS man. migrated from Norton Commander to Windows Commander, can't live without it
http://www.ghizzler.com ALT+F7
mono should be ready soon so we should be able to run RunUO on linux.
http://www.runuo.com/discussion/viewtopic.php?t=4043