diff --git a/utils/glued-check-sources.bash b/utils/glued-check-sources.bash
new file mode 100755
index 0000000..a7251eb
--- /dev/null
+++ b/utils/glued-check-sources.bash
@@ -0,0 +1,64 @@
+#! /bin/bash
+###########################################################################
+# GLUED: GNU/Linux Uniform Environment Distribution                       #
+# Copyright (C) 2007-2015 Universidade do Porto - Faculdade de Engenharia #
+# Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
+###########################################################################
+# This program 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.                                                         #
+###########################################################################
+
+if [ -f 'functions.bash' ]; then
+    PKGS='rules'
+    source 'functions.bash'
+elif [ -f '../functions.bash' ]; then
+    PKGS='../rules'
+    source '../functions.bash'
+else
+    echo "ERROR: unable to find functions.bash."
+    exit 1
+fi
+
+nf=0
+list=()
+
+while read file; do
+    url=()
+    PKG_COMMON="$(dirname "$file")/common.bash"
+    source "$file" 2> /dev/null
+    n=0;
+    while [ -n "${url[$n]}" ]; do
+        u="${url[$n]}"
+        f="$(basename $u)"
+        nfo1 "Checking $f"
+	if ! [[ `wget -S --spider $u 2>&1 | grep 'HTTP/1.1 200 OK'` ]]; then
+	    ((nf++))
+	    list+=("$f")
+	    err "Not available"
+	fi
+        let n++
+    done
+done < <(find "$PKGS" -name '*.bash' )
+
+if [ $nf -eq 0 ]; then
+    ok "All sources are available"
+else
+    err "Missing sources ($nf):"
+    for item in ${list[*]}
+    do
+	nfo2 $item
+    done
+fi
+