Improve demo script

Closes #9

demo_script.sh

@@ -1,3 +1,5 @@
+echo -n 'User: '
 whoami
+echo
+echo '`ls -l`:'
 ls -l
-touch testfile

netrun.py

@@ -27,17 +27,32 @@ def yn(question, options="yn"):
 
     return response
 
-parser = argparse.ArgumentParser(description="Securely run a script from the Internet")
+
+parser = argparse.ArgumentParser(
+    description="Securely run a script from the Internet"
+)
 parser.add_argument("url", help="URL of the script")
+parser.add_argument(
+    "-s",
+    "--skip-pager",
+    action="store_true",
+    help="Skip pager and confirmation; run script immediately",
+)
 args = parser.parse_args()
 url = args.url
 
+interpreter = ["bash"]
+pager = ["less"]
+
 content = requests.get(url).content
 
-launch("less", content)
-
-response = yn("Do you want to run this script?")
-if response == "y":
-    launch("bash", content)
+if args.skip_pager:
+    launch(interpreter, content)
 else:
-    print("Script not run.")
+    launch(pager, content)
+
+    response = yn("Do you want to run this script?")
+    if response == "y":
+        launch(interpreter, content)
+    else:
+        print("Script not run.")