$ mkruser -h
NAME:
mkruser - CLI to get or remove mackerel users.
USAGE:
mkruser [global options] command [command options] [arguments...]
VERSION:
20220110-162559 f270c70 (Build by: go version go1.17.5 darwin/amd64)
COMMANDS:
list, l Get user list.
delete, req Delete user.
help, h Shows a list of commands or help for one command
GLOBAL OPTIONS:
--key value, -k value [$MACKEREL_API_KEY]
--help, -h show help (default: false)
--version, -v print the version (default: false)