[doreto]

PHP код:

public OnPlayerCommandPerformed(playerid, cmdtext[], success)
{
    if(!success)
    {
        new string[70];
        format(string, sizeof(string), "Command %s dont exits, Type /cmds for all your commands.", cmdtext);//it will say /test dont exits,type /cmds for all your cmds
        SendClientMessage(playerid,COLOR_RED, string);//color red
    }
    return true;
} 


this shout work