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How to check if a file exists?

• To: mathgroup at smc.vnet.net
• Subject: [mg47514] How to check if a file exists?
• From: Thomas Guignard <thomas.guignard at epfl.ch>
• Date: Thu, 15 Apr 2004 03:39:17 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Hi

I have little experience in Mathematica and I have trouble getting used 
to the Mathematica way of thinking.

I'm looking for a way to check if a given file exists. If it exists, I 
load its contents, if not I have to start a block of calculations.

I just can't find the function to check the existence of a file!

Thanks
Tom

-- 
Thomas Guignard
Laboratory of Electromagnetics and Acoustics
Swiss Federal Institute of Technology, Lausanne

• Follow-Ups:
  • Re: How to check if a file exists?
    • From: Denis Mângia <mangia@ita.br>