# gnmic > A gNMI command-line client. > Manage gNMI network device configuration and view operational data. > More information: . - Request device capabilities: `gnmic --address {{ip:port}} capabilities` - Provide a username and password to fetch device capabilities: `gnmic --address {{ip:port}} --username {{username}} --password {{password}} capabilities` - Get a snapshot of the device state at a specific path: `gnmic -a {{ip:port}} get --path {{path}}` - Update device state at a specific path: `gnmic -a {{ip:port}} set --update-path {{path}} --update-value {{value}}` - Subscribe to target state updates under the subtree at a specific path: `gnmic -a {{ip:port}} subscribe --path {{path}}`