SAS(R) 9.1.3 Companion for z/OS

270 PATHNAME Function Chapter 13
Details
function. If no operating environment option is specified, it allows
writing new records at the beginning of the file.
MOPEN returns the identifier for the file, or 0 if the file could not be opened.
MOPEN applies to members in partitioned data sets (PDS and PDSE) and UNIX
System Services (USS) files. Under z/OS, MOPEN can open PDS and PDSE members
for output only. It can open USS files for output or append.
See Also
PATHNAME Function
3 “DOPEN Function” on page 254
Returns the physical name of a SAS data library or of an external file or returns a blank
Category: SAS File I/O
Category: External Files
z/OS specifics: fileref, libref
See: PATHNAME Function in SAS Language Reference: Dictionary
Syntax
PATHNAME((‘fileref’ | ‘libref’) )
fileref
specifies the fileref assigned to an external file.
libref
specifies the libref assigned to a SAS library.
search-level
specifies whether to search for a fileref or a libref.
Note: If search-level is omitted, PATHNAME searches for a fileref or libref with
the specified name. R
F specifies a search for a fileref.
L specifies a search for a libref.
Details
PATHNAME returns the physical name of an external file or a SAS library, or returns a
blank if fileref or libref is invalid. When PATHNAME is applied to a concatenation, it
returns a list of data set names enclosed in parentheses.
Under z/OS, you can also use any valid DDname that was previously allocated using
a TSO ALLOCATE command or a JCL DD statement.