Man pages matching name gfmkdir in section 1:

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