#!/bin/sh -e cd ../build unpack() { [ ! -d "docbook-xml-$1" ] || return 0; mkdir -p docbook-xml-$1 tar -C docbook-xml-$1 -xvf /src/docbook-xml-${1}.zip } unpack 4.1.2 unpack 4.2 unpack 4.3 unpack 4.4 unpack 4.5