Hello Fabrizio The Mv command in XrdClientAdmin.cc and in the perl interface use: XrdClientAdmin::Mv(const char *fileDest, const char *fileSrc) The first argument is the target location and second the src location. Typically copy/move commands use the order: <cmd> <src> <target> and I am wondering if it would be possible to use the same order in XrdClientAdmin::Mv and XrdClientAdmin::XrdMv. Cheers, Wilko