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DOPTNAME

Category:

External Files

Arguments

directory-id

specifies the identifier that was assigned when the directory was opened, generally by the DOPEN function.

Restriction:

To use DOPTNAME on a directory, the directory must have been previously opened by using DOPEN.

nval

specifies the sequence number of the option.

Details

Operating Environment Information:   The number, names, and nature of the directory information varies between operating environments. The number of options that are available for a directory varies depending on the operating environment. For details, see the SAS documentation for your operating environment.  

Examples

Example 1: Using DOPTNAME to Retrieve Directory Attribute Information

This example opens the directory with the fileref MYDIR, retrieves all system-dependent directory information items, writes them to the SAS log, and closes the directory:

%let filrf=mydir;
%let rc=%sysfunc(filename(filrf,physical-name));
%let did=%sysfunc(dopen(&filrf));
%let infocnt=%sysfunc(doptnum(&did));
%do j=1 %to &infocnt;
   %let opt=%sysfunc(doptname(&did,&j));
   %put Directory information=&opt;
%end;
%let rc=%sysfunc(dclose(&did));

Example 2: Using DOPTNAME within a DATA Step

This example creates a data set that contains the name and value of each directory information item:

data diropts;
   length optname $ 12 optval $ 40;
   keep optname optval;
   rc=filename("mydir","physical-name");
   did=dopen("mydir");
   numopts=doptnum(did);
   do i=1 to numopts;
      optname=doptname(did,i);
      optval=dinfo(did,optname);
      output;
   end;
   run;

Functions: DINFO DOPEN DOPTNUM

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