[Anarkien]

pawn Код:

public OnPlayerCommandText(playerid, cmdtext[])
{
    dcmd(nban, 4, cmdtext);
    return 0;
}

pawn Код:

dcmd_nban(playerid, params[])
{
    if (sscanf(params, "u", id)) SendClientMessage(playerid, 0xFF0000AA, "[INFO - USAGE]: /nban [playerid/partname]");
    else if (id == INVALID_PLAYER_ID) SendClientMessage(playerid, 0xFF0000AA, "No player with that ID");
    else
    {
        SendClientMessage(id, 0xFF0000AA, "You have been kicked");
        Ban(id);
    }
    return 1;
}

Something like this, maybe? Modify it to fit your needs.