my  $OUTFILE_file_name = "../user_log/".$req_id."\.txt";         
open ( OUTFILE, '>', $OUTFILE_file_name ) 
        or die "$0 : failed to open output file $OUTFILE_file_name : $!\n";
    
print OUTFILE $uemail;    
close ( OUTFILE );          # close output file       

##</code><code>##

failed to open output file ../user_log/22410.txt : Permission denied