println "archivo [${args[0]}]" 
File f = new File(args[0])
f.each{
	String name =it.substring( it.lastIndexOf("/")+1)+".wsdl"
	println" saving [$name] "
	String cmd ="wget ${it}?wsdl -O ${name}"
	println cmd 
	cmd.execute().text
	}

used this to download a bunch of wsdls. Put all addresses in a file and execute the script like

groovy download.groovy file.txt

download files with groovy and wget

download, files, groovy

Groovy