Added commands to list paths.
Added protection against bad input on some command-lines.
diff --git a/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml b/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
index 65a6c9e..1ed7931 100644
--- a/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
+++ b/cli/src/main/resources/OSGI-INF/blueprint/shell-config.xml
@@ -35,6 +35,12 @@
             <action class="org.onlab.onos.cli.net.TopologyCommand"/>
         </command>
         <command>
+            <action class="org.onlab.onos.cli.net.PathListCommand"/>
+            <completers>
+                <ref component-id="deviceIdCompleter"/>
+            </completers>
+        </command>
+        <command>
             <action class="org.onlab.onos.cli.net.ClustersListCommand"/>
         </command>
         <command>