stock frename(oldname[],newname[]) { // by Jefff
	if(!fexist(oldname)) return false;
	new string[255], File:old, File:neww;
	old = fopen(oldname, io_read);
	neww = fopen(newname, io_write);
	while(fread(old, string)){
		StripNewLine(string);
		format(string,sizeof(string),"%s\r\n",string);
		fwrite(neww, string);
	}
	fclose(old);
	fclose(neww);
	fremove(oldname);
	return true;
}

if(strcmp(cmd,"/changename",true)==0)
    {
        tmp = strtok(cmdtext, idx);
        if(strlen(tmp)==0) return SendClientMessage(playerid, COLOR_LB, "Syntax: /ChangeName <Player ID/Part of Name> <New Name>");
        player = ReturnUser(tmp);
        if(player != INVALID_PLAYER_ID)
        {
            if(PlayerInfo[playerid][pAdmin] >= 1337)
        {
                new length = strlen(cmdtext);
                while ((idx < length) && (cmdtext[idx] <= ' '))
                {
                    idx++;
                }
                new offset = idx;
                new result[80];
                while ((idx < length) && ((idx - offset) < (sizeof(result) - 1)))
                {
                    result[idx - offset] = cmdtext[idx];
                    idx++;
                }
                result[idx - offset] = EOS;
                GetPlayerName(player, sendername, sizeof(sendername));
                format(string, sizeof(string), "%s.ini", sendername);
                frename(sendername,(result));
                SetPlayerName(player,(result));
                OnPlayerUpdate(player);
                fremove(string);
                format(string, sizeof(string), "Your name has been changed from %s to %s.", sendername, (result));
                SendClientMessage(player, COLOR_YELLOW, string);
            }
            else return SendClientMessage(playerid, COLOR_RED, "(Error): You are not an administrator. (Error Code: 45)");
        }
        else return SendClientMessage(playerid, COLOR_RED, "(Error): Player does not exist.");
        return 1;
    }