collect: Add mac-address.tree to collect all the MAC addresses

Signed-off-by: Aryane Ast dos Santos <aras10@c3sl.ufpr.br>
Signed-off-by: Erik Alexandre Pucci <eap08@c3sl.ufpr.br>

collect/scripts/collect/mac-address.tree

+#!/bin/bash
+# Copyright (C) 2009-2012 Centro de Computacao Cientifica e Software Livre
+# Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+#
+# This file is part of collect-agent
+#
+# collect-agent is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+# USA.
+
+while read mac; do
+    newTag="<mac value=\"$mac\" type=\"string\"/>"
+    tags="$tags$newTag"
+done < <(/sbin/ifconfig 2>&1 | awk '/HW/ {print $NF}' | sort -u)
+
+printf "${tags}\n"