--- /dev/null
+#!/bin/bash
+
+usage="unpack SOURCE_DIR [TARGET_DIR]"
+
+if [ $# -lt 2 ]
+then
+ echo $usage
+ exit 1
+fi
+
+source_dir=$1
+target_dir=.
+if [ -n "$2" ]
+then
+ target_dir=$2
+fi
+
+for deb in $(ls $source_dir/*.deb)
+do
+ echo "extract $deb"
+ dpkg-deb -x $deb $target_dir
+done
+