Man pages matching name gfncopy in section 1:

gfncopy.1.en	debian 10 / gfarm-client
gfncopy.1.ja	debian 10 / gfarm-client
gfncopy.1.en	debian 11 / gfarm-client
gfncopy.1.ja	debian 11 / gfarm-client
gfncopy.1.en	debian 12 / gfarm-client
gfncopy.1.ja	debian 12 / gfarm-client