Hello all, I would like to copy all csv files from a specific folder to another one. Below is the code which I am currently using:   data _null_; length fref $8 fname $200; did = filename(fref,'\\files\FEB_P000\Reporting_FS\Accounting log'); did = dopen(fref); do i = 1 to dnum(did); fname = dread(did,i); IF find(FNAME,'.csv') then     do;          %let pathscr = //files/FEB_P000/Reporting_FS/Accounting log;          %let pathdes = //files/FEB_P000/Reporting_FS/Accounting log/2021;          %let file = FNAME;            libname IN "&pathscr";          libname IN "&pathdes";         filename src "&pathscr/&file";         filename des "&pathdes/&file";           rc= fcopy('src','des')        put rc=;    end; end; run;   However when is executes, no error is displayed (rc= 20006) but the files are not copied. When I hard code the variable '&file' with the exact file name, the file is copied.   Can anyone help please? ... View more