dotbot/Commands/Status.cs

using Discord.Commands;
using Discord.WebSocket;
using System;
using System.Threading.Tasks;

namespace dotbot.Commands
{
    public class Status : ModuleBase<SocketCommandContext>
    {
        [Command("hi")]
        [Summary("says hi")]
        public async Task SayHi([Remainder] [Summary("the stuff to say")] string echo = ";hi")
        {
            await ReplyAsync($"hi friend! you said: \"{echo}\"");
        }
    }


    // Create a module with the 'sample' prefix
    //[Group("sample")]
    public class Sample : ModuleBase<SocketCommandContext>
    {
        [Command("square")]
        [Summary("Squares a number.")]
        public async Task SquareAsync([Summary("The number to square.")] int num)
        {
            // We can also access the channel from the Command Context.
            await Context.Channel.SendMessageAsync($"{num}^2 = {Math.Pow(num, 2)}");
        }

        [Command("userinfo")]
        [Summary("Returns info about the current user, or the user parameter, if one passed.")]
        [Alias("user", "whois")]
        public async Task UserInfoAsync([Summary("The (optional) user to get info for")] SocketUser user = null)
        {
            var userInfo = user ?? Context.Client.CurrentUser;
            await ReplyAsync($"{userInfo.Username}#{userInfo.Discriminator}");
        }
    }
}