To read flat file from a unix server

We need to read a flat file from a Unix server, where our Database is located.
The location gets created correctly.
But while we are trying to import files from the location in Design Center , we get an error that "directory does not exists", although the directory has all the permissions.
Can someone please suggest how should we create the location so as it can read the files.
Please Reply ASAP......

We have started Design Center on a local machine(Windows Machine) with uaer as repository owner of the server,
In the design center we can not sample the file till we import it,
can you please tell how to sampe the file without importing it.
Also a location pointing to server location gets easily created on the design center and the file module points to that location only, but when we try to import the file through that location, it says directory does not exists, although oracle user has all the read write permissions on the directory......
Please help!

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