Man pages matching name gfwhoami in section 1:

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