Moving files into different folders using c#

I am trying to write code to move 7000 files from one folder into different folders based on the years.  Following are some examples of the files name in the centralized location:

07032014FundsIncomingMessages.txt
01022014FundsIncomingMessages.txt
06102010FundsOutgoingMessages.txt
06102011FundsOutgoingMessages.txt
...

so the code will basically move the "07032014FundsIncomingMessages.txt" and "01022014FundsIncomingMessages.txt" into a folder "2014".  The "06102010FundsOutgoingMessages.txt" will move into a folder "2010".  The "06102011FundsOutgoingMessages.txt" will move into a folder "2011".

This is going to be written on c#!  Thanks!
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eli411Asked:
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Guy Hengel [angelIII / a3]Connect With a Mentor Billing EngineerCommented:
step 1: list the files from a folder (Directory):
here is the technical reference with code sample:
http://msdn.microsoft.com/en-us/library/07wt70x2%28v=vs.110%29.aspx

step 2: for each of the files, you extract the "year" information, which is a plain string.SubString function:
http://msdn.microsoft.com/en-us/library/system.string.substring%28v=vs.110%29.aspx
assuming that its always characters 5-8, you use filename.SubString(4,4)

step 3: move the file:
here is the technical reference with code sample:
http://msdn.microsoft.com/en-us/library/system.io.file.move%28v=vs.110%29.aspx

what else would you need (apart from someone writing you the full code, which is not the objective of EE)?
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eli411Author Commented:
Thanks for the reference!  Working good!
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