China DOS Union

I have many text documents, “testi.txt” (i=1:n). In all the text documents there is one unique characteristic string, for example “machine parameter”. I want to copy everything from this characteristic string to the end of the document into another text document (including the characteristic string itself), and not keep anything before the characteristic string. I want to make this into a batch file under DOS, please help!!
Thanks, everyone!!

@echo off

for %%a in (test*.txt) do (

	sed -n "/machine parameter/,$p" %%a|more>>new.txt

)

#Sed download post #17
http://www.cn-dos.net/forum/viewthread.php?tid=30573

Many thanks indeed, moderator :P