Re: Examples of Safe File Handling
- To: mathgroup at smc.vnet.net
- Subject: [mg36954] Re: [mg36938] Examples of Safe File Handling
- From: "Y.A.Tesiram" <yas at pcomm.hfi.unimelb.edu.au>
- Date: Thu, 3 Oct 2002 00:16:36 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
On Wed, 2 Oct 2002, Steven wrote: > I've been looking over the file and directory manipulation functions in Mathematica > 4.1, and I'm not finding good examples of how to test for the existence of > a file or directory before I attempt to create, access, or delete it. Are > there any good examples of this somewhere? > > STH > > Steven, Directory[] returns the current directory $Path returns the directories in your path where files can be found. SetDirectory[] changes to the specified directory and makes it the current directory. FileNames[] returns a list of all the file names (text documents, picture documents etc) and subdirectory (folder) names in the current directory. Since FileNames returns a list of elements, you can use all sorts of tests to see if a file you're looking for is in a said directory or not or whether it is a subdirectory or not. I hope that this will get you started. Regards Yas