file

tasks/benchmark.wdl

 			/opt/rtg-tools/dist/rtg-tools-3.10.1-4d58ead/rtg index -f vcf ${sample}.reformed.vcf.gz
         else
         	echo "only for quartet samples"
-        fi		
+        fi	
+
+        ls > filelist	
 	>>>
 
 	runtime {
 		File summary = "${sample}.summary.csv"
 		File extended = "${sample}.extended.csv"
 		File metrics = "${sample}.metrics.json.gz"
+		File out_file = "filelist"
 	}
 }