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  • Batch file to Delete Old Virtual Directories.

    - by Michael Freidgeim
    On some servers we have many old Virtual Directories created for previous versions of our application. IIS user interface allows to delete only one in a time. Fortunately we can use IIS scripts as described in How to manage Web sites and Web virtual directories by using command-line scripts in IIS 6.0 I've created batch file DeleteOldVDirs.cmd rem http://support.microsoft.com/kb/816568 rem syntax: iisvdir /delete WebSite [/Virtual Path]Name [/s Computer [/u [Domain\]User /p Password]] REM list all directories and create batch of deletes iisvdir /query "Default Web Site" echo "Enter Ctrl-C  if you want to stop deleting" Pause iisvdir /delete "Default Web Site/VDirName1" iisvdir /delete "Default Web Site/VDirName2" ...   If the name of WebSite or Virtual directory contain spaces(e.g  "Default Web Site"), don't forget to use double quotes. Note that the batch doesn't delete physical directories from flie system.You need to delete them using Windows Explorer, but it does support multiple selection!

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  • Using Delegates in C# (Part 1)

    - by rajbk
    This post provides a very basic introduction of delegates in C#. Part 2 of this post can be read here. A delegate is a class that is derived from System.Delegate.  It contains a list of one or more methods called an invocation list. When a delegate instance is “invoked” with the arguments as defined in the signature of the delegate, each of the methods in the invocation list gets invoked with the arguments. The code below shows example with static and instance methods respectively: Static Methods 1: using System; 2: using System.Linq; 3: using System.Collections.Generic; 4: 5: public delegate void SayName(string name); 6: 7: public class Program 8: { 9: [STAThread] 10: static void Main(string[] args) 11: { 12: SayName englishDelegate = new SayName(SayNameInEnglish); 13: SayName frenchDelegate = new SayName(SayNameInFrench); 14: SayName combinedDelegate =(SayName)Delegate.Combine(englishDelegate, frenchDelegate); 15: 16: combinedDelegate.Invoke("Tom"); 17: Console.ReadLine(); 18: } 19: 20: static void SayNameInFrench(string name) { 21: Console.WriteLine("J'ai m'appelle " + name); 22: } 23: 24: static void SayNameInEnglish(string name) { 25: Console.WriteLine("My name is " + name); 26: } 27: } We have declared a delegate of type SayName with return type of void and taking an input parameter of name of type string. On line 12, we create a new instance of this delegate which refers to a static method - SayNameInEnglish.  SayNameInEnglish has the same return type and parameter list as the delegate declaration.  Once a delegate is instantiated, the instance will always refer to the same target. Delegates are immutable. On line 13, we create a new instance of the delegate but point to a different static method. As you may recall, a delegate instance encapsulates an invocation list. You create an invocation list by combining delegates using the Delegate.Combine method (there is an easier syntax as you will see later). When two non null delegate instances are combined, their invocation lists get combined to form a new invocation list. This is done in line 14.  On line 16, we invoke the delegate with the Invoke method and pass in the required string parameter. Since the delegate has an invocation list with two entries, each of the method in the invocation list is invoked. If an unhandled exception occurs during the invocation of one of these methods, the exception gets bubbled up to the line where the invocation was made (line 16). If a delegate is null and you try to invoke it, you will get a System.NullReferenceException. We see the following output when the method is run: My name is TomJ'ai m'apelle Tom Instance Methods The code below outputs the same results as before. The only difference here is we are creating delegates that point to a target object (an instance of Translator) and instance methods which have the same signature as the delegate type. The target object can never be null. We also use the short cut syntax += to combine the delegates instead of Delegate.Combine. 1: public delegate void SayName(string name); 2: 3: public class Program 4: { 5: [STAThread] 6: static void Main(string[] args) 7: { 8: Translator translator = new Translator(); 9: SayName combinedDelegate = new SayName(translator.SayNameInEnglish); 10: combinedDelegate += new SayName(translator.SayNameInFrench); 11:  12: combinedDelegate.Invoke("Tom"); 13: Console.ReadLine(); 14: } 15: } 16: 17: public class Translator { 18: public void SayNameInFrench(string name) { 19: Console.WriteLine("J'ai m'appelle " + name); 20: } 21: 22: public void SayNameInEnglish(string name) { 23: Console.WriteLine("My name is " + name); 24: } 25: } A delegate can be removed from a combination of delegates by using the –= operator. Removing a delegate from an empty list or removing a delegate that does not exist in a non empty list will not result in an exception. Delegates are invoked synchronously using the Invoke method. We can also invoke them asynchronously using the BeginInvoke and EndInvoke methods which are compiler generated.

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  • Does one's native spoken language affect quality of code?

    - by Xepoch
    There is a school of thought in linguistics that problem solving is very much tied to the syntax, semantics, grammar, and flexibility of one's own native spoken language. Working with various international development teams, I can clearly see a mental culture (if you will) in the codebase. Programming language aside, the German coding is quite different from my colleagues in India. As well, code is distinctly different in Middle America as it is in Coastal America (actually, IBM noticed this years ago). Do you notice with your international colleagues (from ANY country) that coding style and problem solving are in-line with native tongues?

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  • Best way to block "comment spam" postings to web forms? [closed]

    - by David Jones
    Possible Duplicate: Make your site anti-bot? I have a custom web form on my PHP-based site. Recently it is getting a regular stream of comment-spam postings from a few specific IP addresses. Question: What is a good way to block a small set of blacklisted IP addresses from accessing my site? I was thinking it should be possible using .htaccess to respond with status code 403 (Forbidden) for all HTTP requests from the blacklisted IP addresses, ... but I am not sure exactly how to do that. If anyone knows the .htaccess syntax needed to accomplish this, ... please let me know. thanks in advance,

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  • Blank Screen After Ubuntu 12 installation

    - by Atul
    On my dell laptop, running with windows 7, I installed Ubuntu 12. I used it for sometime, then i re-started to switch to windows. First time it got boot up with windows but then it got hanged. I re-started again and then blank screen with blinking cursor came and beep sounds also started to came. I read in few forums and this seems like a common issue with Ubuntu. I tried using the bootable USB for both windows 7 and Ubuntu but none of these are even getting detected. Please let me know if any of know the work-around. Below is configuration" Machine: Dell Studio BIOS: Phoenix OS: Windows 7 Motherboard: Intel

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  • Could not apply stored configuration for monitors

    - by Hernantz
    Well this happened when I upgraded to Natty. Not only seems I can't change my resolution to higher than 1024x768 but it appears at the left and using only 70% of the monitor's width. I tried logging in but in ubuntu classic mode, and i was able to change it, but that trick did not work anymore. (May this be a compiz problem?) Anyways, here is my /var/log/Xorg.0.log http://pastebin.com/Ew4wwLab and lspci -nn | grep VGA: 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) I tried using xrandr for adding manually a resolution of 1280x1768 but without luck. Here is the xrandr output Screen 0: minimum 320 x 200, current 1024 x 768, maximum 4096 x 4096 LVDS1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 1024x768 60.0*+ 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis) TV1 disconnected (normal left inverted right x axis y axis) 1280x1024 (0xc6) 109.0MHz h: width 1280 start 1368 end 1496 total 1712 skew 0 clock 63.7KHz v: height 1024 start 1027 end 1034 total 1063 clock 59.9Hz

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  • Big Data Appliance

    - by David Dorf
    Today Oracle announced the next release of it's Big Data Appliance, an engineered system composed of hardware and software targeting the efficient processing of big data.  The solution leverages 288 Intel cores running Cloudera's distribution of Apache Hadoop in 1.1 TB of main memory.  This monster helps companies acquire, organize, and analyze large volumes of structured and un-structured data. Additionally a new versions of the Oracle Big Data Connectors and Oracle NoSQL Database were released. Why is this important to retailers?  As the infographic below conveys, mobile and social have added even more data to the already huge collections of POS transactions and e-commerce weblogs.  Retailers know that mining that data will help them make better decisions that lead to increased sales, better customer service, and ultimately a successful retail business. Monetate

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  • Ubuntu won't use my nvidia driver

    - by Spencer
    I'm running Ubuntu 12.10 on a laptop that has both Intel Integrated Graphics and an Nvidia Geforce 540m. I installed the drivers properly, but I can't manage to actually use them. I'm stuck in 640x480 resolution and the drivers aren't detected anywhere. Each time I open the Nvidia settings menu it says: "You do not appear to be using the NVIDIA X driver. Please edit your X configuration file (Just run 'nvidia-xconfig' as root), and restart the X server." ^Doing so does not help. Anybody have any ideas?

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  • Grub-Efi wrong resolution

    - by Nikki Kononov
    My question, as it comes from the title, related to grub, but it's a different thing. I re-installed Windows 7 and Ubuntu 12.10 in UEFI mode (before that I was using normal BIOS) and everything went perfectly fine. Both systems load as they should but there is one thing that keeps bothering me. The problem is before I installed both systems in UEFI I used to boot in both system using common grub (non-uefi) and resolution in this grub was correct (which is 1366x768). Right now with grub-efi I have wrong resolution (which is seems to be 640x480). So my question is can can I safely set grub-resolution using grub config files or issue is related to something else? (for instance graphics card). I am using Ubuntu 12.10 Intel HD 3000 + Nvidia GT 540M Optimus (I am using bumblebee) Kernel 3.5.0-19-generic all updates installed! I also added ubuntu x-swat ppa for drivers. Thank you for your help!

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  • Why isn't the source code of programs shown in research papers released?

    - by Antoine
    Is there a reason why the source code of programs shown in research papers are not released ? I understand that research papers are more about the general idea of accomplishing something than implementation details, but I don't get why they don't release the code. For example, in this paper ends with: Results The human line drawing system is implemented through the Qt framework in C++ using OpenGL, and runs on a 2.00 GHz Intel dual core processor workstation without any additional hardware assistance. We can interactively draw lines while the system synthesizes the new path and texture. Do they keep the source code closed intentionally because of a monetization they intend to make with it, or because of copyright ?

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  • Installing Solaris Studio 12.2 on Ubuntu 10.04

    - by KronoS
    I'm having a dickens of a time installing Solaris Studio 12.2 on Ubuntu 10.04. I found this guide, however using the alien option isn't finding the correct files. I'm not exactly sure on the syntax of alien, its kinda alien to me. (sorry for the bad pun) Also, when I download the tar file, and extract it, there are errors everytime saying things like: "operation not permitted" cannot creat symlink to '../prod/bin/cc': Operation not permitted I've extracted with super user access, but to no avail. Any success from anyone else?

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  • No sound 12.04 (Dummy output)

    - by Edgar Adrian Alvarez
    Its been weeks with no sound. I feel like Ive tried everything but somethings just dont seem right. I am a new user and so far i love Ubuntu but this sound issue is making me unsure. Im NOT muted. Ive tried multiple jacks, front and back. in alsamixer it says choose sound card and I have only thr 'hda Intel' option. In pulseaudio I only have 'dummy output'. When I have Youtube on I can see audio being detected in pavucontrol but nothing is coming out of the speakers. Im getting desperate, some one please walk me thru this. http://www.alsa-project.org/db/?f=c7377242d96ea884edebd807f4fe71f619b8d6af What more information should i provided?

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  • 12.04 Dual Monitor Configuration changes to "Mirrored" automatically

    - by Josef
    After installing 12.04 on my Samsung X120 Notebook (with Intel GMA 4500 internal graphics card) i have a Problem with the configuration off my 2nd monitor. Its a 22" with 1680 * 1050 Pixel connected via HDMI. I use the display configuration and set internal display=off and external display=main display. That works fine. After rebooting i still have that configuration, but after a while (often when i press a button on the keyboard), the configuration automatically changes to "Mirror Screen" and the internal display switches on. Both displays then have a bad resolution. When i do the manual display configuration again, everything is fine for the duration of that session. What could be the problem, that this display configuration gets lost / resets?

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  • Problem with audio sharing between different programs

    - by Lars Borg
    I've been using Linux for quite some time, but until now I've never run into any problems. I also saw the thread "Sound, stopping between multiple programs", but it is referring to a very old version... My problem is that when I run Diablo 3 (using PlayOnLinux) and Skype 4 at the same time, I only get audio from the program that I start first. If I start skype first and then Diablo 3, I have perfekt audio in Skype and sometimes I might hear a faint whisper of the Diablo sounds... This problem started after I changed motherboard to Asus p8z77-v pro with 16GB memory and Intel i7 3770K CPU. With the old motherboard, all this worked just fine. The OS is Ubuntu 12.04. I have only installed Wine, PlayOnLinux, Skype 4, and Diablo 3. All of the latest version, as far as I know. What should I do? What do you need to know, in order to be able to help? Thanks /Lasse

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  • Should I ditch AJAX in client side web development when I've got a web-socket open?

    - by jt0dd
    I was thinking that maybe I should forget AJAX (HTTP) requests when I've got a web-socket open between client and server, but I decided I should ask here to check if this could be a bad practice for some reason that I'm not thinking of. Once the socket is open, there's less syntax (often meaning simpler error handling) involved in passing information between client and server with Socket.io (just one example of a web-socket). Is there some obvious situation where a web-socket (Socket.io for example) isn't going to be capable of handling a functionality that an AJAX request could do easily?

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  • OpenGL (glx) not working with ubuntu 12.10

    - by user26766
    It all started when I installed nvidia's own (download from website) driver. Uninstalling it and reverting back to nvidia-current didn't solve the problem, so I have been playing with this for a while. It seems glx support is missing, and my intel graphics is not responding. gnome loads only in fallback mode. Here are some outputs: glxinfo name of display: :0.0 Error: couldn't find RGB GLX visual or fbconfig glxgears Error: couldn't get an RGB, Double-buffered visual optirun glxgears works fine lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev ff) Here's the content of log file when just after running glxinfo: less /var/log/Xorg.0.log | grep gl [ 112.156] (II) LoadModule: "glx" [ 112.157] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so [ 112.157] (II) Module glx: vendor="X.Org Foundation" [ 112.157] (II) UnloadModule: "glx" [ 112.157] (II) Unloading glx [ 112.157] (EE) Failed to load module "glx" (module requirement mismatch, 0) Some more info... lsmod Module Size Used by bbswitch 13612 0 pci_stub 12623 1 vboxpci 23195 0 vboxnetadp 25671 0 vboxnetflt 23480 0 vboxdrv 320372 3 vboxpci,vboxnetadp,vboxnetflt parport_pc 32689 0 ppdev 17074 0 bnep 18141 2 rfcomm 46620 12 binfmt_misc 17501 1 snd_hda_codec_hdmi 32049 1 snd_hda_codec_realtek 78147 1 joydev 17458 0 uvcvideo 76750 0 videobuf2_core 32852 1 uvcvideo videodev 120310 2 uvcvideo,videobuf2_core videobuf2_vmalloc 12861 1 uvcvideo videobuf2_memops 13405 1 videobuf2_vmalloc snd_hda_intel 33492 3 coretemp 13401 0 kvm_intel 132760 0 arc4 12530 2 snd_hda_codec 134213 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel kvm 414111 1 kvm_intel iwlwifi 386837 0 i915 520799 2 snd_hwdep 17699 1 snd_hda_codec snd_pcm 96668 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec psmouse 100389 0 drm_kms_helper 49113 1 i915 ghash_clmulni_intel 13221 0 snd_seq_midi 13325 0 snd_rawmidi 30513 1 snd_seq_midi btusb 22475 0 drm 288436 3 i915,drm_kms_helper serio_raw 13216 0 snd_seq_midi_event 14900 1 snd_seq_midi snd_seq 61555 2 snd_seq_midi,snd_seq_midi_event mac80211 535936 1 iwlwifi bluetooth 209249 22 bnep,rfcomm,btusb snd_timer 29426 2 snd_pcm,snd_seq snd_seq_device 14498 3 snd_seq_midi,snd_rawmidi,snd_seq snd 78921 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device cfg80211 206797 2 iwlwifi,mac80211 aesni_intel 51038 1 cryptd 20404 2 ghash_clmulni_intel,aesni_intel aes_x86_64 17256 1 aesni_intel dell_wmi 12682 0 sparse_keymap 13891 1 dell_wmi dcdbas 14439 0 i2c_algo_bit 13414 1 i915 microcode 22804 0 lpc_ich 17062 0 soundcore 15048 1 snd snd_page_alloc 18485 2 snd_hda_intel,snd_pcm video 19391 1 i915 mac_hid 13206 0 wmi 19071 1 dell_wmi mei 40691 0 lp 17760 0 parport 46346 3 parport_pc,ppdev,lp ahci 25721 3 libahci 31192 1 ahci atl1c 41102 0 how can I fix this? any ideas? Here is another thing I've tried: sudo apt-get purge nvidia* sudo reboot sudo apt-get install bumblebee bumblebee-nvidia didn't make any difference. The most relevant post I found on the web was this: http://ubuntuforums.org/archive/index.php/t-1722306.html Here it's explained that the problem is with the priority of shared libraries that are loaded for glxinfo. Here's what I get when I look up the libraries: linux-vdso.so.1 => (0x00007fff6bf8b000) libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007f22d6ccd000) libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f22d6993000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f22d65d3000) libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007f22d63ad000) libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f22d619b000) libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f22d5f97000) libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f22d5d91000) libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f22d5b8f000) libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007f22d5977000) libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f22d5759000) libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f22d5553000) libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f22d5346000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f22d5129000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f22d4f25000) /lib64/ld-linux-x86-64.so.2 (0x00007f22d6f54000) libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f22d4d20000) libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f22d4b1a000) librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f22d4911000) It seems "mesa" instead of nvidia-current is being used. However I didn't find any obvious link to /lib/nvidia-current in /etc/ld.so.conf (where the directories containing the shared libraries are listed). I don't know if there's anything missing or if this is normal. thanks, UPDATE: The problem was solved by updating to Ubuntu 13.04. It seems bumblebee was to blame, but I'm not sure what was going wrong...

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  • I need acpi=off to boot, but this seems to disable wifi

    - by TheExp3rt
    To boot my computer, I have to use acpi=off in kernel options. Doing this apparently causes my wifi adapter to be switched off and prevents my mouse and USB keyboard to not work. If I change acpi=off to nomodeset, it fixes these problems. But then it sets my computer at a lower resolution. I am currently running Kubuntu 13.10, although none of the updates, starting from 12.04, changed the need for acpi=off. I assume I need acpi=off in because I have an oldish computer with an intel motherboard How can I boot without acpi=off? Output of uname -a: 3.11.0-13-generic #20-Ubuntu SMP Wed Oct 23 07:38:26 UTC x86_64 x86_64 x86_64 GNU/Linux

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  • Laptoppal a HOUG konferenci&aacute;ra

    - by Lajos Sárecz
    Mához 3 hétre kezdodik a HOUG konferencia. Március 28-án hétfon, a konferencia 0. napján délután Workshop-okkal indítjuk a konferenciát, amelyek közül több is lehetoséget ad arra, hogy a résztvevok saját laptopjukon kipróbálhassák az Oracle különbözo termékeit. Én egy Oracle Data Masking Hands-on Workshop-ot fogok tartani a deperszonalizáció, anonimizálás bemutatására, amely keretében egy Virtualbox image-et kap minden résztvevo. Szükség lesz kb. 20GB szabad területre, 3 GB memóriára. Valami oknál fogva a Data Masking Demo nem szereti az AMD processzorokat, így érdemes Intel alapú processzorral felszerelt laptoppal érkezni. Mivel egymás után több hands-on részvételre is lehetoség nyílik, ezért aki szeretné az image-eket megorízni, az készüljön megfelelo méretu háttértárral.

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  • Wrong audio volume at boot

    - by skerit
    When I boot my computer and login the volume level is always way too loud. Unfortunately the only way to change it is a physical knob on my speaker. As soon as I can change the volume using my keyboard the volume immediately drops. Say the volume is at 100%, as soon as I turn the dial on my keyboard a little bit it drops to a normal level like 40% How do I get this to work in a clear way, like having it remember the audio level it was on at shutdown? Here's my audio card model: 82801JI (ICH10 Family) HD Audio Controller An Intel card on a Asus motherboard

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  • Is BDD actually writable by non-programmers?

    - by MattiSG
    Behavior-Driven Development with its emblematic “Given-When-Then” scenarios syntax has lately been quite hyped for its possible uses as a boundary object for software functionality assessment. I definitely agree that Gherkin, or whichever feature definition script you prefer, is a business-readable DSL, and already provides value as such. However, I disagree that it is writable by non-programmers (as does Martin Fowler). Does anyone have accounts of scenarios being written by non-programmers, then instrumented by developers? If there is indeed a consensus on the lack of writability, then would you see a problem with a tool that, instead of starting with the scenarios and instrumenting them, would generate business-readable scenarios from the actual tests?

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  • How to automatically change volume level when un-/plugging headphones?

    - by htorque
    What I want is the following: When I plug in my headphones, I want the sound to be un-muted and set to a specific volume level. When I unplug my headphones, I want the sound to be muted (or set to a specific volume level). Setting the volume levels isn't the problem, but I somehow need to do this when un-/plugging the headphones, so I'm looking for a way to get notified of those events. I quickly found /proc/asound/card0/codec#0 to indicate whether headphones are plugged in or not, so I tried to monitor it using inotifywait and change the volume level based on modified notifications. Unfortunately inotifywait failed because proc isn't an ordinary filesystem. Are there other ways to do this (maybe via PulseAudio)? Audio device: Intel HDA, audio codec: Conexant CX20585.

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  • JCP Calendar for 2013 - First EC Meeting 15-16 January

    - by Heather VanCura
    The JCP 2013 calendar and EC Meeting schedule has now been finalized and published :-). This year the EC will be holding meetings in the San Francisco Bay Area in January, and also in September, scheduled around the JavaOne San Francisco Conference; and, Credit Suisse will host the May EC Meeting in Zurich, Switzerland.  The first JCP EC Meeting of 2013 will be a Face to Face Meeting in Santa Clara, California USA, hosted by Intel.  We are of in the midst preparing the agenda now, but it will include a 2012 annual review, JSR Spec Lead presentations & updates, as well as JSR 358, A major revision of the Java Community Process, Expert Group session. You can view meeting materials and minutes from the JCP EC Meetings on JCP.org. The JCP also plans to meet with the Java User Group Leaders attending the User Group Leaders Summit being held at Oracle Redwood Shores location 14-16 January.

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  • Error installation of Ubuntu 12.04 LTS

    - by garu
    Attempting a new installation of Ubuntu 12.04 LTS on what was a dual boot Windows 7 and Ubuntu 12.04 LTS laptop ( Sony intel i3 core 64 bit with 500GB HDD). I followed the following procedure Install Ubuntu • has at least 4.4 GB available, is connected to the internet, download updates while installing and install this third-party are all ticked this time • I chose the Erase disk and install Ubuntu option ( since I want to have only Ubuntu 12.04 LTS operating system in my disk) Now shows The entire disk will be used • 501GB free disk I clicked the install now button. All data copied to the hard drive ( it was copied OK), askes for location, keyboared layout, and who are you. Started to install the Ubuntu 12.04 operating system. After some minutes, I got a report Installation failed, the installer encountered an unrecoverable error. A desktop session will now be run so that you may investigate the problem or try installing again. So, Please give me simple advice on how to proceed. Thank you

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  • Good text editor for Ruby on Rails programming?

    - by Andrew
    I'm trying to find a text editor that I can use for doing Ruby on Rails development. I have been using TextMate on my Mac and would love to find something that even comes close to that experience. My Ubuntu laptop is a little old, and doesn't have a lot of memory, so I need something lightweight. I don't need/want a bloated IDE because the performance on my slow laptop would be terrible. It would be nice if this text editor had: Syntax highlighting A project/file browser view to be able to open files in my project Keyboard shortcuts (don't need them as much)

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  • .NET development on a Retina MacBook Pro with Windows 8

    - by Jeff
    I remember sitting in Building 5 at Microsoft with some of my coworkers, when one of them came in with a shiny new 11” MacBook Air. It was nearly two years ago, and we found it pretty odd that the OEM’s building Windows machines sucked at industrial design in a way that defied logic. While Dell and HP were in a race to the bottom building commodity crap, Apple was staying out of the low-end market completely, and focusing on better design. In the process, they managed to build machines people actually wanted, and maintain an insanely high margin in the process. I stopped buying the commodity crap and custom builds in 2006, when Apple went Intel. As a .NET guy, I was still in it for Microsoft’s stack of development tools, which I found awesome, but had back to back crappy laptops from HP and Dell. After that original 15” MacBook Pro, I also had a Mac Pro tower (that I sold after three years for $1,500!), a 27” iMac, and my favorite, a 17” MacBook Pro (the unibody style) with an SSD added from OWC. The 17” was a little much to carry around because it was heavy, but it sure was nice getting as much as eight hours of battery life, and the screen was amazing. When the rumors started about a 15” model with a “retina” screen inspired by the Air, I made up my mind I wanted one, and ordered it the day it came out. I sold my 17”, after three years, for $750 to a friend who is really enjoying it. I got the base model with the upgrade to 16 gigs of RAM. It feels solid for being so thin, and if you’ve used the third generation iPad or the newer iPhone, you’ll be just as thrilled with the screen resolution. I’m typically getting just over six hours of battery life while running a VM, but Parallels 8 allegedly makes some power improvements, so we’ll see what happens. (It was just released today.) The nice thing about VM’s are that you can run more than one at a time. Primarily I run the Windows 8 VM with four cores (the laptop is quad-core, but has 8 logical cores due to hyperthreading or whatever Intel calls it) and 8 gigs of RAM. I also have a Windows Server 2008 R2 VM I spin up when I need to test stuff in a “real” server environment, and I give it two cores and 4 gigs of RAM. The Windows 8 VM spins up in about 8 seconds. Visual Studio 2012 takes a few more seconds, but count part of that as the “ReSharper tax” as it does its startup magic. The real beauty, the thing I looked most forward to, is that beautifully crisp C# text. Consolas has never looked as good as it does at 10pt. as it does on this display. You know how it looks great at 80pt. when conference speakers demo stuff on a projector? Think that sharpness, only tiny. It’s just gorgeous. Beyond that, everything is just so responsive and fast. Builds of large projects happen in seconds, hundreds of unit tests run in seconds… you just don’t spend a lot of time waiting for stuff. It’s kind of painful to go back to my 27” iMac (which would be better if I put an SSD in it before its third birthday). Are there negatives? A few minor issues, yes. As is the case with OS X, not everything scales right. You’ll see some weirdness at times with splash screens and icons and such. Chrome’s text rendering (in Windows) is apparently not aware of how to deal with higher DPI’s, so text is fuzzy (the OS X version is super sharp, however). You’ll also have to do some fiddling with keyboard settings to use the Windows 8 keyboard shortcuts. Overall, it’s as close to a no-compromise development experience as I’ve ever had. I’m not even going to bother with Boot Camp because the VM route already exceeds my expectations. You definitely get what you pay for. If this one also lasts three years and I can turn around and sell it, it’s worth it for something I use every day.

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