Add docker debugging

Author: bbimber

singlecell/api-src/org/labkey/api/singlecell/pipeline/AbstractSingleCellPipelineStep.java

@@ -271,9 +271,9 @@ public static void executeR(SequenceOutputHandler.JobContext ctx, String dockerC
             writer.println("\t-w /work \\");
             writer.println("\t-e HOME=/homeDir \\");
             writer.println("\t" + dockerContainerName + " \\");
-            writer.println("\tRscript --vanilla " + localRScript.getName());
+            writer.println("\tRscript --vanilla " + localRScript.getName() + " && echo 'Done!'");
             writer.println("");
-            writer.println("echo 'script complete'");
+            writer.println("echo 'Bash script complete'");
 
         }
         catch (IOException e)