// updateCommandFunc executes the "update" command.
func updateCommandFunc(c *cli.Context, client *etcd.Client) (*etcd.Response, error) {
if len(c.Args()) == 0 {
return nil, errors.New("Key required")
}
key := c.Args()[0]
value, err := argOrStdin(c.Args(), os.Stdin, 1)
if err != nil {
return nil, errors.New("Value required")
}
ttl := c.Int("ttl")
return client.Update(key, value, uint64(ttl))
}
