El comando findstr hace el trabajo.
C:\Users\cguerra\Downloads\vdbench50403>type example7 | findstr /R /C "thread"
FINDSTR: /C ignored
fwd=fwd1,fsd=fsd1,operation=read,xfersize=4k,fileio=sequential,fileselect=random,threads=2
* Start two threads (threads=2; 1 thread is default).
* Each thread: