Update app.py

app.py

@@ -1,6 +1,7 @@
 import gradio as gr
 import io
 import sys
+import os
 
 class PersistentRunner:
     def __init__(self):
@@ -22,7 +23,10 @@ class PersistentRunner:
 runner = PersistentRunner()
 
 def run(code):
-    return runner.run(code.replace("\\n", "\n"))
+    if code.startswith("!"):
+        os.system(code[1:])
+    else:
+        return runner.run(code.replace("\\n", "\n"))
 
 demo = gr.Interface(fn=run, inputs="text", outputs="text")
 demo.launch()