This library, in addition to the procedures described here, also exports the I/O condition types described in I/O condition types.
[R6RS] Filename must be a file name (see Port I/O).
The file-exists? procedure returns #t if the named file exists at the time
the procedure is called, #f otherwise.
[R6RS] Filename must be a file name (see Port I/O).
The delete-file procedure deletes the named file if it exists and can be
deleted, and returns unspecified values. If the file does not exist or cannot be
deleted, an exception with condition type &i/o-filename is raised.