[Haskell-beginners] What's the mean of >>=

[김명신]

It could be stupid question because i'm very beginner of haskell.
 
I found strange literals when i read haskell code.
Does anybody explan what the mean of >>= below ocode ? And additionally, What is mean of >> itself?
 
putStrLn' [] = putChar '\n'
putStrLn' xs - putStr' xs >>= \ x -> putChar '\n'
 
putStr' [] = return ()
putStr' (x : xs) = putChar x >> putStr' n
 
(because of i18n problem, back slash literal could be shown as '\')
 
Thank you in advance
Myung Shin Kim
 
 		 	   		  
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