Index: /tools/gformat.py
===================================================================
--- /tools/gformat.py	(revision 9961)
+++ /tools/gformat.py	(revision 9971)
@@ -736,4 +736,5 @@
 \ttest CNodeRick dnsmasq.conf  =  Receive output of CGI script
 \t                                for arguments CNodeRick/dnsmasq.conf
+\tlist <nodes|proxies>         =  List systems which marked up.
 """
   exit(0)
@@ -844,4 +845,15 @@
         datadump['latitude'], datadump['longitude'] = rdnap.rd2etrs(datadump['rdnap_x'], datadump['rdnap_y'])
         write_yaml(host, datadump)
+    elif sys.argv[1] == "list":
+      if sys.argv[2] == "nodes":
+        systems = get_nodelist()
+      elif sys.argv[2] == "proxies":
+        systems = get_proxylist()
+      else:
+        usage()
+      for system in systems:
+       datadump = get_yaml(system)
+       if datadump['status'] == "up":
+         print system
     else:
       usage()