Code:
new String:map[64]; new String:mapBase[32]; new String:mapString[64];
GetCurrentMap(map, sizeof(map));
File_GetBaseName(map, mapBase, sizeof(mapBase));
Format(mapString, 64, "cfg/mapcfg/%s.cfg", mapBase);
if (FileExists(mapString)) {
ServerCommand("exec mapcfg/%s", mapBase);
}