diff --git a/sling/sling/__init__.py b/sling/sling/__init__.py
index d5d896b..a27993e 100644
--- a/sling/sling/__init__.py
+++ b/sling/sling/__init__.py
@@ -574,9 +574,13 @@ def stream(self, env:dict=None, stdin=None) -> Iterable[list]:
 # conform to legacy module
 Sling = Task
 
-def _run(cmd: str, temp_file: str, return_output=False, env:dict=None, stdin=None):
+def _run(cmd: str, temp_file: str, return_output=False, print_output=False, env:dict=None, stdin=None):
   """
-  Runs the task. Use `return_output` as `True` to return the stdout+stderr output at end. `env` accepts a dictionary which defines the environment.
+  Runs the task.
+  
+  Use `return_output` as `True` to return the stdout+stderr output at end.
+  Use `print_output` as `True` to print to stdout as it runs.
+  `env` accepts a dictionary which defines the environment.
   """
   lines = []
   try:
@@ -589,6 +593,8 @@ def _run(cmd: str, temp_file: str, return_output=False, env:dict=None, stdin=Non
         lines.append(line)
       else:
         print(line, flush=True)
+      if print_output:
+        print(line, flush=True)
     
     os.remove(temp_file)