Name
Name1
Name2//this should be removed
Name3
Name4
Firstname_Lastname
Lastname_Firstname
etc

COMMAND:auninvite(playerid, params[])
{
    if(GetAdminLevel(playerid) < 10) return SendClientError(playerid, CANT_USE_CMD);
    new iPlayer;
    if( sscanf ( params, "u", iPlayer)) return SCP(playerid, "[PlayerID/PartOfName]");
    if(!IsPlayerConnected(iPlayer)) return SendClientError(playerid, PLAYER_NOT_FOUND);
// The function itself
            new File:gstats; // The file
            new string[MAX_STRING];
            new pname[24];
            new str[256];
            new dest[128];
            format(dest,sizeof(dest), "fLogs/%s.fam.log",PlayerInfo[iPlayer][PTeamName]);
            gstats=fopen(dest, io_append);
            GetPlayerName(iPlayer, pname, 24); // The name of the player
             format(str, 256, "\n\r"); // format
             while(fread(gstats, string)) {
             if(strcmp(string, pname, false, strlen(pname))==0) { // To check if the players name is in the file
             fdeleteline(dest, string); // delete the line
             fwrite(gstats, str); // write the string
             SendClientWarning(playerid,"Test");//i never see this message only "Fail"
                   }
               }
    
                 fclose(gstats);
         SendClientWarning(playerid,"Fail");//this is the message i only see:(
    Uninvite(iPlayer,GetPlayerFaction(iPlayer));
    SendClientInfo(playerid, "Done.");
    return 1;
}

CheckName(teamname[], name[])
{
    new string[20];
    new destination[128];
    format(destination, sizeof(destination), "fLogs/%s.fam.log", teamname);
    new File: file = fopen(destination, io_read); // I'm not sure what's the name of the log file.
    while(fread(file, string))
    {
        if (strcmp(name, string, true, strlen(name)) == 0)
        {
            fclose(file);
            return 1;
        }
    }
    fclose(file);
    return 0;
}

RemoveName(teamname[], name[])
{
    if(CheckName(teamname, name) == 1)
    {
        new string[20];
        new destination[128];
        format(destination, sizeof(destination), "fLogs/%s.fam.log", teamname);
        new File: file = fopen(destination, io_read);
        fcreate("TempFamLog.cfg");
        new File: file2 = fopen("TempFamLog.cfg", io_append);
        while(fread(file, string))
        {
            if (strcmp(name, string, true, strlen(name)) != 0 && strcmp("\n", string) != 0)
            {
                fwrite(file2, string);
            }
        }
        fclose(file);
        fclose(file2);
        file = fopen(destination, io_write);
        file2 = fopen("TempFamLog.cfg", io_read);
        while(fread(file2, string))
        {
            fwrite(file, string);
        }
        fclose(file);
        fclose(file2);
        fremove("TempFamLog.cfg");
        return 1;
    }
    return 0;
}

COMMAND:auninvite(playerid, params[])
{
    if(GetAdminLevel(playerid) < 10) return SendClientError(playerid, CANT_USE_CMD);
    new iPlayer;
    if( sscanf ( params, "u", iPlayer)) return SCP(playerid, "[PlayerID/PartOfName]");
    if(!IsPlayerConnected(iPlayer)) return SendClientError(playerid, PLAYER_NOT_FOUND);
    
    new pname[24];
    new dest[128];
    GetPlayerName(iPlayer, pname, sizeof(pname));
    RemoveName(PlayerInfo[iPlayer][PTeamName], pname);
    Uninvite(iPlayer,GetPlayerFaction(iPlayer));
    return 1;
}

fdeleteline(filename[], line[])
{
    if(fexist(filename))
    {
        new temp[128];
        new File:fhandle = fopen(filename,io_read);
        fread(fhandle,temp,sizeof(temp),false);
        if(strfind(temp,line,true)==-1){return 0;}
        else
        {
            fclose(fhandle);
            fremove(filename);
            for(new i=0;i<strlen(temp);i++)
            {
                new templine[128];
                strmid(templine,temp,i,i+strlen(line));
                if(equal(templine,line,true))
                {
                    strdel(temp,i,i+strlen(line));
                    fcreate(filename);
                    fhandle = fopen(filename,io_write);
                    fwrite(fhandle,temp);
                    fclose(fhandle);
                    return 1;
                }
            }
        }
    }
    return 0;
}