Update gradio.Interface examples

app.py

@@ -12,6 +12,8 @@ def greet(name):
     except Exception as e:
         out = str(e)
     # return "Hello " + name + "!!"
+    if not (out and out.strip()):
+        out = "No output, that's all we know."
     return f"[{out}]"
 
 
@@ -19,6 +21,12 @@ iface = gr.Interface(
     fn=greet,
     inputs="text",
     outputs="text",
+    examples=[
+        "cat /proc/version  # show linux distro",
+        "free  # show free memory",
+        "uname -m  # show machine arch ",
+        "cat /proc/cpuinfo  # show cpu info ",
+    ],
     title="probe the system",
     description="talk to the system via subprocess.check_output ",
 )