Browse? Scan maybe, from within a SAS program to identify candidate files for processing with a subsequent DATA step, depending on your SAS program requirements.
Suggest exploring the FILENAME statement and the PIPE engine for interacting with the OS. You will find technical and conference topic-related papers at the SAS Support http://support.sas.com/ website, using the website's SEARCH facility, as well as the SAS-hosted documentation, also available at the website (as well as online in SAS). With SAS, there is a "companion guide" for each operating system, which will keep the subject matter relevant to a given operating system platform.