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  • Time development vs production values

    - by Pier
    I have to choose between a framework I already know (Adobe Air), and a framework I know nothing about but is more powerful (Unity). I can do the mobile game I have in mind with both platforms, but the quality of the graphics and development time would be quite different. From an indie mobile perspective, are more detailed graphics justifiable commercially? Is there any objective study that throws some solid conclusions about that?

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  • developer tools for os' other than windows

    - by user225269
    I currently use visual studio 2008 for creating projects that can run on windows. Can you recommend me of other tools that can be used to develop applications for other operating systems?(Linux, Mac, Solaris) The most prominent programming languages will do(C++, C#, F#) And scripting languages(PHP, Perl, etc)

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  • Understanding the passing of data/life of a script in web development/CodeIgniter

    - by Pete Jodo
    I hope I worded the title accurately enough but I typically use Java and don't have much experience in Web Development/PHP/CodeIgniter. I have a difficult time understanding the life cycle of a script as I found out trying to implement a certain feature to a website I am developing (as a means of learning how to). I'll first describe the feature I tried implementing and then the problem I ran into that made me question my fundamental understanding of how scripts work since I'm used to typical OOP. Ok so here goes... I have a webpage that has 2 basic tasks a user can do, create and delete an entry. What I attempted to implement was a way to time a user how long it takes them to complete a certain task. The way I did this was have a homepage where there would be a list of tasks a user to choose from (in this case 2, create and delete). A user would click a task which would link to the 'true' homepage where the user then would be expected to complete the task. My script looks like this: <?php class Site extends CI_Controller { var $task1; var $tasks = array( "task1" => NULL, "date1" => 0, "date2" => 0, "diff" => 0); function __construct() { parent::__construct(); include 'timetask.php'; $this->task1 = new TimeTask("create"); } function index() { $this->tasks['task1'] = $this->task1->getTask(); $this->tasks['diff'] = $this->task1->getTimeDiff(); if($this->tasks['diff'] == NULL) { $this->tasks['diff'] = 0; } $this->load->view('usability_test', $this->tasks); } function origIndex() { $this->task1->setDate1(new DateTime()); $this->tasks['date1'] = $this->task1->getDate1()->getTimestamp(); $data = array(); if($q = $this->site_model->get_records()) { $data['records'] = $q; } $this->load->view('options_view', $data); } function create() { $this->task1->setDate2(new DateTime()); $this->tasks['date2'] = $this->task1->getDate2()->getTimestamp(); $data = array( 'author' => $this->input->post('author'), 'title' => $this->input->post('title'), 'contents' => $this->input->post('contents') ); $this->site_model->add_record($data); $this->index(); } I only included create to keep it short. Then I also have the TimeTask class, that actually another StackOverflow so kindly helped me with: <?php class TimeTask { private $task; /** * @var DateTime */ private $date1, $date2; function __construct($currTask) { $this->task = $currTask; } public function getTimeDiff() { $hasDiff = $this->date1 && $this->date2; if ($hasDiff) { return $this->date2->getTimestamp() - $this->date1->getTimestamp(); } else { return NULL; } } public function __toString() { return (string) $this->getTimeDiff(); } /** * @return \DateTime */ public function getDate1() { return $this->date1; } /** * @param \DateTime $date1 */ public function setDate1(DateTime $date1) { $this->date1 = $date1; } /** * @return \DateTime */ public function getDate2() { return $this->date2; } /** * @param \DateTime $date2 */ public function setDate2(DateTime $date2) { $this->date2 = $date2; } /** * @return get current task */ public function getTask() { return $this->task; } } ?> I don't think posting the views is necessary for the question but here is atleast how the links are made. ...and... id", $row-title); ? Now there's no error in the code but it doesn't do what I expect of it and the reason I assume why is because that each time a function of the script is called via a new page it is NOT the same instance of the script called previously so any previously created objects are no longer there. This confuses me and leaves me quite unsure of how to implement this gracefully. Some ways I would guess of how to do this is by passing the necessary data through the URL or have data saved in a database and retrieve it later to compare the times. What would be a recommended way to do, not just this, but anything that needs previously created data? Also, am I correct to think that a script is only 'alive' for one webpage at a time? Thanks!

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  • Can grub handle same release (3.6) but new rc (rc5)?

    - by hhoyt
    can grub handle newer kerner rc ? I am running 3.6.0-rc4 ok, grub update definitely recognizes all required files for rc5, but edit of grub.cfg only shows rc4 after grub-update. D/N matter whether I generate kernel 3.6.0-rc5 or whether I install the .deb files. Generating grub.cfg ... using custom appearance settings Found background image: /usr/share/peppermint/wallpapers/Peppermint.jpg Found linux image: /boot/vmlinuz-3.6.0-030600rc5-generic Found linux image: /boot/vmlinuz-3.6.0-030600rc4-generic Found initrd image: /boot/initrd.img-3.6.0-030600rc4-generic Found linux image: /boot/vmlinuz-3.6.0-rc5 Found initrd image: /boot/initrd.img-3.6.0-rc5 Found linux image: /boot/vmlinuz-3.6.0-rc5.old Found initrd image: /boot/initrd.img-3.6.0-rc5 Found linux image: /boot/vmlinuz-3.5.3 Found initrd image: /boot/initrd.img-3.5.3 Found linux image: /boot/vmlinuz-3.5.3.old Found initrd image: /boot/initrd.img-3.5.3 Found linux image: /boot/vmlinuz-3.5.0-13-generic Found initrd image: /boot/initrd.img-3.5.0-13-generic Found Ubuntu 10.04.1 LTS (10.04) on /dev/sda1 Found Ubuntu 10.04.4 LTS (10.04) on /dev/sda10 Found Peppermint Two (2) on /dev/sda15 Found Ubuntu 10.10 (10.10) on /dev/sda16 Found Windows 7 (loader) on /dev/sda3 Found Ubuntu 11.04 (11.04) on /dev/sda5 Found Ubuntu 12.04.1 LTS (12.04) on /dev/sda6 Found Linux Mint 12 LXDE (12) on /dev/sda8 Found MS-DOS 5.x/6.x/Win3.1 on /dev/sdc1 If I press 'e' on boot startup of rc4 and manually change it to rc5 and ctrl-x, it comes up fine. I just cannot get grub.cfg to update such that rc4 is included. Thanks, Howard # DO NOT EDIT THIS FILE # It is automatically generated by grub-mkconfig using templates from /etc/grub.d and settings from /etc/default/grub # BEGIN /etc/grub.d/00_header if [ -s $prefix/grubenv ]; then set have_grubenv=true load_env fi set default="Windows 7 (loader) (on /dev/sda3)" if [ "${prev_saved_entry}" ]; then set saved_entry="${prev_saved_entry}" save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi function savedefault { if [ -z "${boot_once}" ]; then saved_entry="${chosen}" save_env saved_entry fi } function recordfail { set recordfail=1 if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi } function load_video { insmod vbe insmod vga insmod video_bochs insmod video_cirrus } insmod part_msdos insmod ext2 set root='(hd1,msdos1)' search --no-floppy --fs-uuid --set=root 218e9f6f-c21e-4c50-90a5-5a40be639b66 if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=640x480 load_video insmod gfxterm insmod part_msdos insmod ext2 set root='(hd1,msdos1)' search --no-floppy --fs-uuid --set=root 218e9f6f-c21e-4c50-90a5-5a40be639b66 set locale_dir=($root)/boot/grub/locale set lang=en_US insmod gettext fi terminal_output gfxterm if [ "${recordfail}" = 1 ]; then set timeout=-1 else set timeout=10 fi END /etc/grub.d/00_header BEGIN /etc/grub.d/05_debian_theme insmod part_msdos insmod ext2 set root='(hd1,msdos1)' search --no-floppy --fs-uuid --set=root 218e9f6f-c21e-4c50-90a5-5a40be639b66 insmod jpeg if background_image /usr/share/peppermint/wallpapers/Peppermint.jpg; then set color_normal=light-gray/black set color_highlight=magenta/black else set menu_color_normal=white/black set menu_color_highlight=black/light-gray fi END /etc/grub.d/05_debian_theme BEGIN /etc/grub.d/10_linux_proxy menuentry "Peppermint, with Linux 3.6.0-030600rc4-generic" --class peppermint --class gnu-linux --class gnu --class os { recordfail insmod gzio insmod part_msdos insmod ext2 set root='(hd1,msdos1)' search --no-floppy --fs-uuid --set=root 218e9f6f-c21e-4c50-90a5-5a40be639b66 linux /boot/vmlinuz-3.6.0-030600rc4-generic root=UUID=218e9f6f-c21e-4c50-90a5-5a40be639b66 ro initrd /boot/initrd.img-3.6.0-030600rc4-generic } END /etc/grub.d/10_linux_proxy BEGIN /etc/grub.d/30_os-prober_proxy menuentry "Peppermint, with Linux 3.6.0-030600rc4-generic (on /dev/sda15)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos15)' search --no-floppy --fs-uuid --set=root 21a3d91a-ae43-4f51-b8d6-7f3dc80967d7 linux /boot/vmlinuz-3.6.0-030600rc4-generic root=UUID=21a3d91a-ae43-4f51-b8d6-7f3dc80967d7 ro splash quiet splash vt.handoff=7 initrd /boot/initrd.img-3.6.0-030600rc4-generic } menuentry "Ubuntu, with Linux 3.0.0-24-generic (on /dev/sda10)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos10)' search --no-floppy --fs-uuid --set=root 6c9a0149-3045-4335-83fa-a2513ca3a250 linux /boot/vmlinuz-3.0.0-24-generic root=UUID=6c9a0149-3045-4335-83fa-a2513ca3a250 ro crashkernel=384M-2G:64M,2G-:128M splash initrd /boot/initrd.img-3.0.0-24-generic } menuentry "Ubuntu, with Linux 3.5.0-030500rc7-generic (on /dev/sda10)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos10)' search --no-floppy --fs-uuid --set=root 6c9a0149-3045-4335-83fa-a2513ca3a250 linux /boot/vmlinuz-3.5.0-030500rc7-generic root=UUID=6c9a0149-3045-4335-83fa-a2513ca3a250 ro crashkernel=384M-2G:64M,2G-:128M splash initrd /boot/initrd.img-3.5.0-030500rc7-generic } menuentry "Peppermint, with Linux 3.3.0-030300rc2-generic (on /dev/sda15)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos15)' search --no-floppy --fs-uuid --set=root 21a3d91a-ae43-4f51-b8d6-7f3dc80967d7 linux /boot/vmlinuz-3.3.0-030300rc2-generic root=UUID=21a3d91a-ae43-4f51-b8d6-7f3dc80967d7 ro splash quiet splash vt.handoff=7 initrd /boot/initrd.img-3.3.0-030300rc2-generic } menuentry "Ubuntu, with Linux 2.6.39-rc5-candela (on /dev/sda16)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos16)' search --no-floppy --fs-uuid --set=root 48fcb5ec-b51b-4afd-b0e5-a2aace66f6e1 linux /boot/vmlinuz-2.6.39-rc5-candela root=/dev/sda7 ro splash initrd /boot/initrd.img-2.6.39-rc5-candela } menuentry "Windows 7 (loader) (on /dev/sda3)" --class windows --class os { insmod part_msdos insmod ntfs set root='(hd0,msdos3)' search --no-floppy --fs-uuid --set=root EA3EFABB3EFA7FBD chainloader +1 } menuentry "Ubuntu, with Linux 2.6.38-13-generic (on /dev/sda5)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos5)' search --no-floppy --fs-uuid --set=root bcfe855e-a449-429d-b204-c667e129a4bd linux /boot/vmlinuz-2.6.38-13-generic root=UUID=bcfe855e-a449-429d-b204-c667e129a4bd ro quiet splash vt.handoff=7 initrd /boot/initrd.img-2.6.38-13-generic } menuentry "Ubuntu, with Linux 3.2.0-29-generic-pae (on /dev/sda6)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos6)' search --no-floppy --fs-uuid --set=root 369605ad-1a92-4b7d-abb5-ce75cbdfc9c1 linux /boot/vmlinuz-3.2.0-29-generic-pae root=UUID=369605ad-1a92-4b7d-abb5-ce75cbdfc9c1 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.2.0-29-generic-pae } menuentry "Ubuntu, with Linux 3.2.0-23-generic-pae (on /dev/sda6)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos6)' search --no-floppy --fs-uuid --set=root 369605ad-1a92-4b7d-abb5-ce75cbdfc9c1 linux /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=369605ad-1a92-4b7d-abb5-ce75cbdfc9c1 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.2.0-23-generic-pae } menuentry "Linux Mint 12 LXDE, 3.0.0-12-generic (/dev/sda8) (on /dev/sda8)" --class gnu-linux --class gnu --class os { insmod part_msdos insmod ext2 set root='(hd0,msdos8)' search --no-floppy --fs-uuid --set=root ccdc67ed-e81c-4f85-9b75-fe0c24c65bb8 linux /boot/vmlinuz-3.0.0-12-generic root=UUID=ccdc67ed-e81c-4f85-9b75-fe0c24c65bb8 ro quiet splash vt.handoff=7 initrd /boot/initrd.img-3.0.0-12-generic } menuentry "MS-DOS 5.x/6.x/Win3.1 (on /dev/sdc1)" --class windows --class os { insmod part_msdos insmod ntfs set root='(hd2,msdos1)' search --no-floppy --fs-uuid --set=root A8F0DE02F0DDD6A2 drivemap -s (hd0) ${root} chainloader +1 } END /etc/grub.d/30_os-prober_proxy BEGIN /etc/grub.d/40_custom This file provides an easy way to add custom menu entries. Simply type the menu entries you want to add after this comment. Be careful not to change the 'exec tail' line above. END /etc/grub.d/40_custom BEGIN /etc/grub.d/41_custom if [ -f $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi END /etc/grub.d/41_custom

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  • Is Your ASP.NET Development Server Not Working?

    - by Paulo Morgado
    Since Visual Studio 2005, Visual Studio comes with a development web server: the ASP.NET Development Server. I’ve been using this web server for simple test projects since than with Visual Studio 2005 and Visual Studio 2008 in Windows XP Professional on my work laptop and Windows XP Professional, Windows Vista 64bit Ultimate and Windows 7 64bit Ultimate at my home desktop without any problems (apart the known custom identity problem, that is). When I received my new work laptop, I installed Windows Vista 64bit Enterprise and Visual Studio 2008 and, for my surprise, the ASP.NET Development Server wasn’t working. I started looking for differences between the laptop environment and the desktop environment and the most notorious differences were: System Laptop Desktop SKU Windows Vista 64bit Enterprise Windows Vista 64bit Ultimate Joined to a Domain Yes No Anti-Virus McAffe ESET After asserting that no domain policies were being applied to my laptop and domain user and nothing was being logged by the ant-virus, my suspicions turned to the fact that the laptop was running an Enterprise SKU and the desktop was running an Ultimate SKU. After having problems with other applications I was sure that problem was the Enterprise SKU, but never found a solution to the problem. Because I wasn’t doing any web development at the time, I left it alone. After upgrading to Windows 7, the problem persisted but, because I wasn’t doing any web development at the time, once again, I left it alone. Now that I installed Visual Studio 2010 I had to solve this. After searching around forums and blogs that either didn’t offer an answer or offered very complicated workarounds that, sometimes, involved messing with the registry, I came to the conclusion that the solution is, in fact, very simple. When Windows Vista is installed, hosts file, according to this contains this definition: 127.0.0.1 localhost ::1 localhost This was not what I had on my laptop hosts file. What I had was this: #127.0.0.1 localhost #::1 localhost I might have changed it myself, but from the amount of people that I found complaining about this problem on Windows Vista, this was probably the way it was. The installation of Windows 7 leaves the hosts file like this: #127.0.0.1 localhost #::1 localhost And although the ASP.NET Development Server works fine on Windows 7 64bit Ultimate, on Windows 7 64bit Enterprise it needs to be change to this: 127.0.0.1 localhost ::1 localhost And I suspect it’s the same with Windows Vista 64bit Enterprise.

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  • Easy to use AutoHotkey/AutoIT alternatives for Linux

    - by Xeddy
    Hi all, I'm looking for recommendations for an easy-to-use GUI automation/macro platform for Linux. If you're familiar with AutoHotkey or AutoIT on Windows, then you know exactly the kind of features I need, with the level of complexity. If you aren't familiar, then here's a small code snippet of how easy it is to use AHK: InputBox, varInput, Please enter some random text... Run, notepad.exe WinWaitActive, Untitled - Notepad SendInput, %varInput% SendInput, !f{Up}{Enter}{Enter} WinWaitActive, Save SendInput, SomeRandomFile{Enter} MsgBox, Your text`, %varInput% has been saved using notepad! #n::Run, notepad.exe Now the above example, although a bit pointless, is a demo of the sort of functionality and simplicity I'm looking for. Here's an explanation for those who don't speak AHK: ----Start of Explanation of Code ---- Asks user to input some text and stores it in varInput Runs notepad.exe Waits till window exists and is active Sends the contents of varInput as a series of keystrokes Sends keystrokes to go to File - Exit Waits till the "Save" window is active Sends some more keystrokes Shows a Message Box with some text and the contents of a variable Registers a hotkey, Win+N, which when pressed executes notepad.exe ----End of Explanation---- So as you can understand, the features are quite obvious: Ability to easily simulate keyboard and mouse functions, read input, process and display output, execute programs, manipulate windows, register hotkeys, etc.. all being done without requiring any #includes, unnecessary brackets, class declarations etc. In short: Simple. Now I've played around a bit with Perl and Python, but its definitely no AHK. They're great for more advanced stuff, but surely, there has to be some tool out there for easy GUI automation? PS: I've already tried running AHK with Wine but sending keystrokes and hotkeys don't work.

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  • Test Driven Development (TDD) in Visual Studio 2010- Microsoft Mondays

    - by Hosam Kamel
    November 14th , I will be presenting at Microsoft Mondays a session about Test Driven Development (TDD) in Visual Studio 2010 . Microsoft Mondays is program consisting of a series of Webcasts showcasing various Microsoft products and technologies. Each Monday we discuss a particular topic pertaining to development, infrastructure, Office tools, ERP, client/server operating systems etc. The webcast will be broadcast via Lync and can viewed from a web client. The idea behind the “Microsoft Mondays” program is to help you become more proficient in the products and technologies that you use and help you utilize their full potential.   Test Driven Development in Visual Studio 2010 Level – 300 (  Intermediate – Advanced ) Test Driven Development (TDD), also frequently referred to as Test Driven Design, is a development methodology where developers create software by first writing a unit test, then writing the actual system code to make the unit test pass.  The unit test can be viewed as a small specification around how the system should behave; writing it first helps the developer to focus on only writing enough code to make the test pass, thereby helping ensure a tight, lightweight system which is specifically focused meeting on the documented requirements. TDD follows a cadence of “Red, Green, Refactor.” Red refers to the visual display of a failing test – the test you write first will not pass because you have not yet written any code for it. Green refers to the step of writing just enough code in your system to make your unit test pass – your test runner’s UI will now show that test passing with a green icon. Refactor refers to the step of refactoring your code so it is tighter, cleaner, and more flexible. This cycle is repeated constantly throughout a TDD developer’s workday. Date:   November 14, 2011 Time:  10:00 a.m. – 11:00 a.m. (GMT+3)  http://www.eventbrite.com/event/2437620990/efbnen?ebtv=F   See you there! Hosam Kamel Originally posted at

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  • DirectFB on a Beagleboard

    - by Johan
    Hi I'm thinking about playing with DirectFB on my Beagleboard. Does anybody have some practical pointers on how to get this up and running? What is a good starting point? Thanks Johan

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  • Is 'Old-School' the Wrong Way to Describe Reliable Security?

    - by rickramsey
    source The Hotel Toronto apparently knows how to secure its environment. "Built directly into the bedrock in 1913, the vault features an incredible 4-foot thick steel door that weighs 40 tonnes, yet can nonetheless be moved with a single finger. During construction, the gargantuan door was hauled up Yonge Street from the harbour by a team of 18 horses. " 1913. Those were the days. Sysadmins had to be strong as bulls and willing to shovel horse maneur. At least nowadays you don't have to be that strong. And, if you happen to be trying to secure your Oracle Linux environment, you may be able to avoid the shoveling, as well. Provided you know the tricks of the trade contained in these two recently published articles. Tips for Hardening an Oracle Linux Server General strategies for hardening an Oracle Linux server. Oracle Linux comes "secure by default," but the actions you take when deploying the server can increase or decrease its security. How to minimize active services, lock down network services, and many other tips. By Ginny Henningsen, James Morris and Lenz Grimmer. Tips for Securing an Oracle Linux Environment System logging with logwatch and process accounting with psacct can help detect intrusion attempts and determine whether a system has been compromised. So can using the RPM package manager to verifying the integrity of installed software. These and other tools are described in this second article, which takes a wider perspective and gives you tips for securing your entire Oracle Linux environment. Also by the crack team of Ginny Henningsen, James Morris and Lenz Grimmer. - Rick Website Newsletter Facebook Twitter

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  • Linux PDF/Postscript Optimizing

    - by Sheldon Ross
    So I have a report system built using Java and iText. PDF templates are created using Scribus. The Java code merges the data into the document using iText. The files are then copied over to a NFS share, and a BASH script prints them. I use acroread to convert them to PS, then lpr the PS. The FOSS application pdftops is horribly inefficient. My main problem is that the PDF's generated using iText/Scribus are very large. And I've recently run into the problem where acroread pukes because it hits 4gb of mem usage on large (300+ pages) documents. (Adobe is painfully slow at updating stuff to 64 bit). Now I can use Adobe reader on Windows, and use the Create Print PDF option or whatever its called, and it greatly( 10x) reduces the size of the PDF(it removes alot of metadata about form fields and such it appears) and produces a PDF that is basically a Print image. My question is does anyone know of a good solution/program for doing something similiar on Linux. Ideally, it would optimize the PDF, reduce size, and reduce PS complexity so the printer could print faster as it takes about 15-20 seconds a page to print right now.

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  • Short interview I gave about Commercial Software Development is now available

    - by Liam Westley
    At the DDD8 conference in January I gave a quick interview to Sara Allison expanding my Commercial Software Development presentation (available here).  The interview has just appeared on the Ubelly.com site, run by some of the Microsoft UK team,   http://ubelly.com/2010/04/how-to-succeed-in-commercial-software-development-2 For those of you for whom video just isn't enough, you can get Commercial Software Development in person at DDDScotland and DDDSouthWest.

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  • Oracle Linux at DOAG 2012 Conference in Nuremberg, Germany (Nov 20th-22nd)

    - by Lenz Grimmer
    This week, the DOAG 2012 Conference, organized by the German Oracle Users Group (DOAG) takes place in Nuremberg, Germany from Nov. 20th-22nd. There will be several presentations related to Oracle Linux, Oracle VM and related infrastructure (including a dedicated MySQL stream on Tue+Wed). Here are a few examples picked from the infrastructure stream of the schedule: Tuesday, Nov. 20th 10:00 - Virtualisierung, Cloud und Hosting - Kriterien und Entscheidungshilfen - Harald Sellmann, its-people Frankfurt GmbH, Andreas Wolske, managedhosting.de GmbH 14:00 - Virtual Desktop Infrastructure Implementierungen und Praxiserfahrungen - Björn Rost, portrix Systems GmbH 15:00 - Oracle Linux - Best Practices und Nutzen (nicht nur) für die Oracle DB - Manuel Hoßfeld, Lenz Grimmer, Oracle Deutschland 16:00 - Mit Linux Container Umgebungen effizient duplizieren - David Hueber, dbi services sa Wednesday, Nov. 21st 09:00 - OVM 3 Features und erste Praxiserfahrungen - Dirk Läderach, Robotron Datenbank-Software GmbH 09:00 - Oracle VDI Best Practice unter Linux - Rolf-Per Thulin, Oracle Deutschland 10:00 - Oracle VM 3: Was nicht im Handbuch steht... - Martin Bracher, Trivadis AG 12:00 - Notsystem per Virtual Box - Wolfgang Vosshall, Regenbogen AG 13:00 - DTrace - Informationsgewinnung leicht gemacht - Thomas Nau, Universität Ulm 13:00 - OVM x86 / OVM Sparc / Zonen und co. - Bertram Dorn, Oracle Deutschland Thursday, Nov. 22nd 09:00 - Oracle VM 3.1 - Wie geht's wirklich? - Manuel Hoßfeld, Oracle Deutschland, Sebastian Solbach, Oracle Deutschland 13:00 - Unconference: Oracle Linux und Unbreakable Enterprise Kernel - Lenz Grimmer, Oracle Deutschland 14:00 - Experten-Panel OVM 3 - Björn Bröhl, Robbie de Meyer, Oracle Corporation 14:00 - Wie patcht man regelmäßig mehrere tausend Systeme? - Sylke Fleischer, Marcel Pinnow, DB Systel GmbH 16:00 - Wo kommen denn die kleinen Wolken her? OVAB in der nächsten Generation - Marcus Schröder, Oracle Deutschland On a related note: if you speak German, make sure to subscribe to OLIVI_DE - Oracle LInux und VIrtualisierung - a German blog covering topics around Oracle Linux, Virtualization (primarily with Oracle VM) as well as Cloud Computing using Oracle Technologies. It is maintained by Manuel Hoßfeld and Sebastian Solbach (Sales Consultants at Oracle Germany) and will also include guest posts by other authors (including yours truly).

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  • uncompressing .zip file in linux [closed]

    - by Suren
    hi, I have a .zip file (It contains multiple files, ex: file1.txt file2.txt file3.txt.. n so on) in a directory. And my query is: How to extract the files from .zip archive to the very same directory and how to create the list of all the files extracted from .zip archive.** The extracted file name should be printed like this in the file named: file_list: file1.txt file2.txt file3.txt filen.txt I have tried the following command assuming that my .zip file name is "data.zip". unzip -qoj data.zip | unzip -ql data.zip > file_list I have used unzip -qoj data.zip to extract all the files in the same directory(quietly,overwrite,junk_path). When I try to insert -l with the first unzip command then the command doesn't extract the file in the current and only files are listed thats why I have to used unzip again after the first pipe(If I am making a mistake here let me know please). I get the following output Length Date Time Name -------- ---- ---- ---- 0 12-21-09 14:25 data/ 6148 12-21-09 14:25 data/.DS_Store 0 12-21-09 14:25 __MACOSX/ 0 12-21-09 14:25 __MACOSX/data/ 82 12-21-09 14:25 __MACOSX/data/._.DS_Store 82 12-11-09 13:59 data/file1.txt 120 12-11-09 13:59 data/file2.txt 166 12-11-09 13:59 data/file3.txt -------- ------- 6598 8 files How do I extract only file1.txt file2.txt file3.txt from this stdout? Is it possible to do this with linux command or I have to write a perl script for this? Thank you.

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  • Does anyone else get worn out using Scrum, finishing sprint after sprint?

    - by Simucal
    I'm with a pretty small startup and we started using a form of a Scrum/Agile development cycle. In many ways I enjoy Scrum. We have relatively short sprints (2 weeks) and I like the Burndown Chart to track the teams progress. I also like the Feature Board so I always know what I should be doing next. It feels good taking down a feature's card from the board, completing it and then putting it in the burn down pile. However, we are now entering in our 18th Sprint release cycle and I'm starting to feel a little burnt out. It isn't that I don't like job or my co-workers, it is just that these sprints are... well, sprints. From start to finish I literally feel like I'm racing against the clock to maintain our development velocity. When we are done with the sprint we spend one day planning the next sprints feature set and estimates and then off we go again. For people who work in a mature Agile/Scrum development process, is this normal? Or are we missing something? Is there normally time in a Scrum enviornment that is unassigned/untracked to get done some minor things and to clear your head?

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  • Learning Objective-C for iPad/iPhone/iPod Development

    - by Jeff Julian
    I am learning how to write apps for the iPad/iPhone/iPod!  Why, well several reasons.  One reason, I have 5 devices in my house on the platform.  I had an iPad and iPhone, Michelle has an iPhone, and each of the kids have iPod Touches.  They are excellent devices for life management, entertainment, and learning.  I am amazed at how well the kids pick up on it and how much it effects the way they learn.  My two year old knows how to use it better than any other device we own and she is learning new words and letters so quickly. Because of this saturation at home, it would be fun to write some apps my family could use.  Some games to bring the hobby of development back into my life.  Second reason is we want to have a Geekswithblogs app for the iPhone and iPad.  We are not sure if it is purely informational (blog posts and tweets) or if members want to be able to publish from the app.  Creating a blog editor would be tough stuff, but could be just the right challenge. There are so many more reasons, but the last one that really makes me excited is that it is a new domain of development where I get excited when I think about writing apps.  That excitement level where I want to see if there are User Groups and if we are just watching TV, to break out the MBP and start working on it.  That excitement level where I could really read a development book cover to cover and not just use as a reference.  I really do like this feeling. Who knows how long this will last and I am definitely not leaving .NET.  Microsoft software will always be my main focus, but for the time, my hobby is changing and I am getting excited about development again.   Technorati Tags: Apple,iPad Development,Objective-C,New Frontiers Image: Courtesy of Apple

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  • Announcement: DTrace for Oracle Linux General Availability

    - by Zeynep Koch
    Today we are announcing the general availability of DTrace for Oracle Linux. It is available to download from ULN for Oracle Linux Support customers.  DTrace is a comprehensive dynamic tracing framework that was initially developed for the Oracle Solaris operating system, and is now available to Oracle Linux customers. DTrace is designed to give operational insights that allow users to tune and troubleshoot the operating system. DTrace provides Oracle Linux developers with a tool to analyze performance, and increase observability into the systems they own to see how they work. DTrace enables higher quality applications development, reduced downtime, lower cost, and greater utilization of existing resources. Key benefits and features of DTrace on Oracle Linux include: • Designed to work on finding performance bottlenecks • Dynamically enables the kernel with a number of probe points, improving ability to service software • Enables maximum resource utilization and application performance • Fast and easy to use, even on complex systems with multiple layers of software If you already have Oracle Linux support, you can download DTrace from ULN channel. We have a dedicated Forum for DTrace on Oracle Linux, to discuss your experience and questions.

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  • ifconfig packet count

    - by kumar
    Hi, if I type ifconfig i get packet for Tx and RX ... where exactly the piece of code to increment this counter? Is it in the network driver itself? or in the kernel ? If possible please provide lxr link of the counter variable used. Thx !

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  • ADF Enterprise Application Development - Made Simple (Book Review)

    - by Frank Nimphius
      Sten E. Vesterli wrote the "Oracle ADF Enterprise Application Development – Made Simple" book published by Packt Publishing in 2011 http://www.packtpub.com/oracle-adf-enterprise-application-development/book A common question on OTN, but also when talking to clients or customers is about where and how to start your ADF application development. Especially when the current programming background is not in Java, but 4 GL or PLSQL, developers often look for answers to the following questions: · How long does it take to learn Oracle ADF ? · How long does it take to replace a Forms application with ADF ? · How many developers do I need? · Do I need to know Java to use ADF and if yes, how good do I need to know this? · How do I structure my programming files, organizing them in JDeveloper work spaces, projects and libraries? · What is best practices for naming Java packages and how to void naming conflicts in ADF in general? · How many Application Modules do I need or should I create? · How to test applications? Sten Vesterli answers all of the above questions and more in his book http://www.packtpub.com/oracle-adf-enterprise-application-development/book , which makes it great value add to the 3 existing Oracle ADF books. In order of complexity (which also is the order in which reading the available Oracle ADF books makes sense), in my opinion, Sten's book should come second – though it also is useful to those that are already more advanced with Oracle ADF. So if you are absolutely new to Oracle ADF, then the order of books to read to get you up on an expert level should be: 1. Grant Ronald; "Quick Start Guide to Oracle Fusion Development: Oracle JDeveloper and Oracle ADF" (McGraw Hill 2010) 2. Sten Vesterli; "Oracle ADF Enterprise Application Development – Made Simple" (Packt Publishing 2011) 3. Duncan Mills, Peter Koletzke; " Oracle JDeveloper 11g Handbook: A Guide to Fusion Web Development" (McGraw Hill 2009) 4. Frank Nimphius, Lynn Munsinger; " Oracle Fusion Developer Guide: Building Rich Internet Applications with Oracle ADF Business Components and Oracle ADF Faces" (McGraw Hill 2010) If you are not new to Oracle ADF and Orace JDeveloper, then buy Sten Vesterli's book anyway. It is worth it and you want to have it on your book shelf. See below the table of content to get a better idea of what this book covers: · Chapter 1: The ADF Proof of Concept · Chapter 2: Estimating the Effort · Chapter 3: Getting Organized · Chapter 4: Productive Teamwork · Chapter 5: Prepare to Build · Chapter 6: Building the Enterprise Application · Chapter 7: Testing your Application · Chapter 8: Look and Feel · Chapter 9: Customizing the Functionality · Chapter 10: Securing your ADF Application · Chapter 11: Package and Deliver · Appendix: Internationalization The book is written with a lot of good humor, which makes the read very enjoyable (from a geek's perspective, of course). My favorite quote – just in case you are interested - is from page 97, when Sten talks about getting organized: " Stop sending e-mails to your team. Just stop it. E-mail is so last century.…" So true, so true! This quote's runner up is the "boss key" on page 128 where Sten talks about productivity and how Oracle Team Productivity Center (TPC) can help you with this. Quotes like these stick to your brains and make sure you never forget. Go for it!

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  • Audio stream mangement in Linux

    - by User1
    I have a very complicated audio setup for a project. Here's what we have: 3 applications playing sound 2 applications recording sound 2 sound cards I really don't really have the code to any of these applications. All I want to do is monitor and control the audio streams. Here are a few examples of operations I'd like to do while the applications are running: Mute one of the incoming audio streams. Have one of the incoming audio streams do a "solo" (be the only stream that can "talk"). Get a graph (about 30 seconds worth) of the audio that each stream produced. Send one of the audio streams to soundcard #1, but all three audio streams to soundcard #2. I would likely switch audio streams every 2 minutes or so with one of the operations listed above. A GUI would be preferred. I started looking at the sound systems in Linux and it gets extremely complex and I feel like there have been many new advances in the past few years. I see jack, pulseaudio, artsd, and several other packages. They all have some promise but where should I start? Is there something someone already built that can help?

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  • Join us for Live Oracle VM and Oracle Linux Cloud Events in Europe

    - by Monica Kumar
    Join us for a series of live events and discover how Oracle VM and Oracle Linux offer an integrated and optimized infrastructure for quickly deploying a private cloud environment at lower cost. As one of the most widely deployed operating systems today, Oracle Linux delivers higher performance, better reliability, and stability, at a lower cost for your cloud environments. Oracle VM is an application-driven server virtualization solution fully integrated and certified with Oracle applications to deliver rapid application deployment and simplified management. With Oracle VM, you have peace of mind that the entire Oracle stack deployed is fully certified by Oracle. Register now for any of the upcoming events, and meet with Oracle experts to discuss how we can help in enabling your private cloud. Nov 20: Foundation for the Cloud: Oracle Linux and Oracle VM (Belgium) Nov 21: Oracle Linux & Oracle VM Enabling Private Cloud (Germany) Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Nov 28: Realize Substantial Savings and Increased Efficiency with Oracle Linux and Oracle VM (Luxembourg) Nov 29: Foundation for the Cloud: Oracle Linux and Oracle VM (Netherlands)Dec 5: MySQL Tech Tour, including Oracle Linux and Oracle VM (France) Hope to see you at one of these events!

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  • How to recover data files from xampp-windows to xampp-linux after crash?

    - by David Buehler
    My Windows box died after I developed a database in xampp on it; fortunately I have a backup of the entire F:/TestWeb/Xampp partition. Unfortunately, I did not do an Export (nor dump) of the "Lws2" database before the crash. I have replaced the defunct machine with one running Mint7 (based on Ubuntu 9.04 "Jaunty Jackalope") and installed xampp-linux into the /opt partition, so the new xampp now runs fine in /opt/lampp, and says all the elements are secured by passwords (which I just assigned during this installation.) I assumed that Xamp-Windows installed in November would migrate easily to xampp-linux installed iin February -- a bad assumption. It apparently would have been simple if I had known enough to do an Export or a Dump before the crash, but.... The backup was done to a Network Attached Storage drive, which is formatted as "vfat" so the backup does not carry with it any valid ownership permissions from MySql on NTFS. I now see from my backup that the old data resided in \TestWeb\Xampp\Mysql\Data\Lws2\ and consists of 7 ".frm" files which define my tables. The actual data -- I suppose a ".sql" file or files -- has disappeared, and I am resigning myself to two days of retyping it. But I do not wish to do the table layouts all over again. So I copied Data tree to /opt/lampp/Data -- PhpMyAdmin does not see it. So I copied Lws2 tree to /opt/lampp/Lws2 -- PhpMyAdmin does not see it. So I copied Data tree to /opt/lampp/var/mysql/Data -- PhpMyAdmin does not see it. So I copied Lws2 tree to /opt/lampp/var/mysql/Lws2 -- PhpMyAdmin does not see it. So I adjusted all the permissions to stop saying owner "nobody" to owner "root" and gave full permissions to all groups and to all others, with permissions percolating down, in all 4 trees. You guessed it -- PhpMyAdmin does not see any database named Lws2, only its 4 default ones. I double-checked the permissions and rebooted Linux and repeated the tests. At some point in that process I did see PhpMyAdmin showing "lws2(7)" but when I clicked on it I saw a "no table found" message. I have not been able to recreate that experience. Apparently there are some setup files for MySql and for PhpMyAdmin which need to be set up by running a wizard or two or by editing the files directly. I grepped the TestWeb tree and found an old "ldir = "C:TestWeb\Xampp\MySql\" and a "DataDir = C:TestWeb\Xampp\MySql\" in a .php file and in a .bat file, but I cannot find the corresponding config file names on the /opt partition/ -- so it looks as if these wizards have not been run to create them. What config files files does Linux use to setup MySql config files for PhpMyAdmin? What wizards do I need to run to point the MySql engine and the PhpMyAdmin at the folder /opt/lampp/data/ with its lws2 folder inside it? Or which files do I need to edit, with a sample of what it normally says under Linux? Incidentally, I remember I converted from MyISAM with its .MYD and .MYI files to InnoDB after entering only a small amount of the data -- and I do not know what file types to look for -- perhaps my data is still there but under another guise or in another place? Is it something as simple as linux needing to see "/data/" instead of /Data? I will check that out while waiting for a response. If anyone can point me to documentation that discusses this level of detail -- I will read it avidly! In any case, thanks for any clarification you can give on this thorny problem. wizdum

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  • Finding latency issues (stalls) in embedded Linux systems

    - by camh
    I have an embedded Linux system running on an Atmel AT91SAM9260EK board on which I have two processes running at real-time priority. A manager process periodically "pings" a worker process using POSIX message queues to check the health of the worker process. Usually the round-trip ping takes about 1ms, but very occasionally it takes much longer - about 800ms. There are no other processes that run at a higher priority. It appears the stall may be related to logging (syslog). If I stop logging the problem seems to go away. However it makes no difference if the log file is on JFFS2 or NFS. No other processes are writing to the "disk" - just syslog. What tools are available to me to help me track down why these stalls are occurring? I am aware of latencytop and will be using that. Are there some other tools that may be more useful? Some details: Kernel version: 2.6.32.8 libc (syslog functions): uClibc 0.9.30.1 syslog: busybox 1.15.2

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  • Cross platform mobile development VS Native Mobile Development: Present And Future.

    - by MobileDev123
    I just completed one year in Smart phone development, working on BlackBerry and Android and also developed one application exclusively targeted to nokia feature phones. And just a month ago I come to know about Titanium Appcelerator tool that enables cross platform development, but there are some developers who complain about it's sub-par functionalities. Even a little bit experience of mine says that developing in native environment rather than these cross platform tools will give you more advantages by giving a developer a chance to add more features with better performance. Do you have same experience? Or you find such cross development tools really useful regarding to advance functionality and performance? As porting (or co developing) same application to different mobile platform is common thing nowadays, what do you think will these cross platform tools evolve and force developers to get a hands on approach on them or majority will stick to the native development environment?

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