Pronounced Kernihan (the "g" is silent).
BrianKernighan is the "K" of "K&R" or KernighanAndRitchie, authors of the classic book on the CeeLanguage, The C Programming Language. He's also done a LOT of other work over the years, almost all of it worth finding out about... maybe at: http://cm.bell-labs.com/cm/cs/who/bwk/index.html
I thought that BrianKernighan and DennisRitchie were the inventors of C and Unix, respectively. That's a lot more important than writing a book about C.
With Aho and Weinberger, he wrote TheAwkProgrammingLanguage in 1988 which remains the most concise description of the AwkLanguage and a brief introduction to ComputerScience.
A collection of interviews with Brian Kernighan: http://genius.cat-v.org/brian-kernighan/interviews/
He also wrote the essay WhyPascalIsNotMyFavoriteProgrammingLanguage, which is worth reading even now, 20 years later.
He invented the HelloWorld program.
Isn't KenThompson also the co-inventor of C? A fundamental concept in UNIX's design is that it's NOT written in assembly, but in a higher level programming language, C.