Z39.50/SRW/SRU toolkit (command-line client for ILL)

 YAZ is a toolkit for the development of client and server software built
 around the ANSI Z39.50 (ISO 23950) standard for information retrieval.
 .
 YAZ supports Z39.50-2003 (version 3), SRU versions 1.1 to 2.0, and the
 industry standard ZOOM API for Z39.50.
 .
 The yaz-illclient program is a command-line client that sends ISO ILL
 requests to a server and decodes the response.