[Emil]

Q1: How can i get the server console commands?

I get the client commands via

void ClientCommand( edict_t *pEntity )

.

Q2: Does EdictIndex change from Client Connect -> Client Disconnect?

[API]

A1: If you are using MM:S, which I assume you are, you can use the factory to get the IVEngineServer instance. Check the header for a list of functions.

A2: A client's index will remain constant during their session (map change is a new session). Index's are reused, and range from 1 to MAXCLIENTS (max is 64). User ID's are much different. They are not reused (unless the server is restarted). User IDs are an excellent way to verify a client's validness. For example:
Timer(5.0, Function, UserID);

In Function, you can use:

int index = g_pEngine->IndexOfUserId(UserID);
if(index<=0)
{
  // client must have left
}

Good luck.

[Emil]

With this i get the server issued commands, but not the ones from the console.
for instance i get "changelevel cs_assault" when the server starts.
But if i write "changelevel cs_assault" in the server console i dont get that but the first exec in the config :/

SH_DECL_HOOK1_void(IVEngineServer, ServerCommand, SH_NOATTRIB, 0, const char *);

bool SupportersPlugin::Load(PluginId id, ISmmAPI *ismm, char *error, size_t maxlen, bool late)
{
GET_V_IFACE_CURRENT(GetEngineFactory, m_Engine, IVEngineServer, INTERFACEVERSION_VENGINESERVER);
SH_ADD_HOOK_MEMFUNC(IVEngineServer, ServerCommand, m_Engine, this, &SupportersPlugin::ServerCommand, false);
}

bool SupportersPlugin::Unload(char *error, size_t maxlen)
{
SH_REMOVE_HOOK_MEMFUNC(IVEngineServer, ServerCommand, m_Engine, this, &SupportersPlugin::ServerCommand, false);
}

void SupportersPlugin::ServerCommand(const char* cmdStr)
{
//Do something with cmdStr
}

[Chrisber]

Try to find the ConCommand instance of the command and hook the Dispatch function.

ConCommand *pCmd = gCvar->FindCommand("changelevel");
//hook pCmd->Dispatch

Chris