Use this function to make the full file name.
FullFileName (Drive, Path, Name, Ext)
| 
                         Parameter  | 
                    
                         Description  | 
                
| 
                         Drive  | 
                    
                         Enter the drive letter, followed by a colon.  | 
                
| 
                         Path  | 
                    
                         Enter the full path.  | 
                
| 
                         Name  | 
                    
                         Enter the file name, omitting the extension.  | 
                
| 
                         Ext  | 
                    
                         Enter the file extension.  | 
                
The system accepts a string containing the drive, path, name, and extension components of a fully qualified file name, assembles them, and returns a string that contains the full file name.
Here is an example:
MYFILENAME = FullFileName("d:","\mypath\","myfile",".ext")
In this example, MYFILENAME would contain:
"d:\mypath\myfile.ext"
| Note | If, in this example, \mypath had no trailing slash, the FullFileName function would have added it for you. | 
Here is a z/OS example:
FullFileName(,"DD:DEFLIB()","MEMBER")
In this example, the result would be:
DD:DEFLIB(MEMBER)
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