JVO Command Tool for Client

• jc client (ver. 1.2) this is the most stable release. 2020/06/17
• jc client (ver. 1.1) 2014/06/06
• jc client (ver. 1.0) 2014/01/28
• jc client (ver. 121006)
• jc client (ver. 120915)
• jc client (ver. 120226) this is under development