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• Reasons why crontab does not work

  - by Adam Matan

  Many a time and oft, crontab scripts are not executed as expected. There are numerous reasons for that, for example: wrong crontab notation, permissions, environment variables and many more. This community wiki aims to aggregate the top reasons for crontab scripts not being executed as expected. Write each reason in a separate answer. Please…

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• Released: Who is Active v11.11

  - by Adam Machanic

  It's been several months since the last Who is Active fix, so I thought I'd call this one out specifically via a blog post. v11.11 contains a few minor fixes and enhancements, which you can read about on the download page . This will (I believe) be the last release that is compatible with SQL Server 2005 and 2008 . v11.xx has been quite a…

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• Simplest way to render image over top of another with another image used as mask in OpenGL?

  - by Adam Naylor

  The effect I'm looking for is to have a single large background image that is always visible (at full alpha) and then show a second image (what I call a light map or specular map) that is partially shown over the top based on a third image (which is effectively a mask). The effect is similar to this effect except instead of simply…

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• Optimizing data downloaded via 'link' media queries and asynchronous loading

  - by adam-asdf

  I have a website that tries to make sensible use of media queries and avoid 'expensive' CSS for users of mobile devices. My eventual goal is to make it 'mobile-first' but for now, since it is based on Twitter Bootstrap it isn't. I included some background images (Base64 encoded) and styles that would only apply to "full-size"…

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• How to get average network load instead of instant

  - by Adam Ryczkowski

  Welcome, I use conky to see network load statistics with sampling every 8 seconds in order to get somewhat more smooth history chart. Unfortunately, all values i get are not average for this 8 second period, but they are sampled from much smaller time span, so charts are the same choppy, as if they were sampled from 1 second…

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• Shouldn't storage classes be taught early in a C class or book?

  - by Adam Mendoza

  Shouldn't storage classes be taught early in a C class or book? I notice that a lot of books, even some of the better ones, covert it toward and end of the book and some books just add it as an appendix. I would teach it together with variables. This is so foundational and I think unfortunately many do not make it that far…

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• EJB Lifecycle and Relation to WARs

  - by Adam Tannon

  I've been reading up on EJBs (3.x) and believe I understand the basics. This question is a "call for confirmation" that I have interpreted the Java EE docs correctly and that I understand these fundamental concepts: An EJB is to an App Container as a Web App (WAR) is to a Web Container Just like you deploy a WAR to a Web…

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• You are or will be a laid off programmer - what do you do a year ago, right now, tomorrow, and next week?

  - by Adam Davis

  Many programmers, software engineers, and other technology professionals are out of work, facing layoffs, or are unprepared for layoffs though they feel secure right now. What should every programmer do right now (even if secure in their current job) to prepare them for layoffs down the road? If your boss came to your…

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• SQL Server Connections Fall 2011 - Demos

  - by Adam Machanic

  Today is the last day of the annual SQL Server Connections show in Vegas, and I've just completed my third and final talk. (Now off to find a frosty beverage or two.) This year I did three sessions: SQL302: Parallelism and Performance: Are You Getting Full Return on Your CPU Investment? Over the past five years,…

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• help download and install and save and use my wireless stick modem and software

  - by ADAM

  i installed Linux Ubuntu after my win os went totally dead by fatal blue screen. cannot reboot or install form CD ROM or get safe mode i installed Linux Ubuntu i still unable to install my wireless stick usb modem to connect and surf the Internet wireless form my provider. i use wireless network from…

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• Information about SATA, IDE (PATA) controllers

  - by Adam Matan

  I have a remote computer on which I want to install a new hard drive for rsync backup. The problem is, I don't know what controller technology is used (PATA, SATA, SATA2, ...) and how many available slots are left. I want to spare me an unnecessary drive just for opening the chassis and looking into…

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• Permanently Sync a wiimote with a computer

  - by Adam Geisweit

  i have tried to look up many ways to sync up my wiimotes to my computer so that i can program games with it, but every time it only syncs them up temporarily, or if it says it can permanently sync it, it doesn't actually do it. it gets tiresome when i have to keep on reconnecting it every time i…

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• Java Terms that are Plagued with Vaguery

  - by Adam Tannon

  What's the difference between a Java Process (what your OS sees) and a JVM? Are they one in the same or are they actually different? How are the JRE and JDK different (in purpose and file content), and which one contains the libraries for Java SE? What's the difference between the Java…

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• WINDOWS 7 DEAD BLUE SCREEN DOES NOT REBOOT OR INSTALL NEW WIN OS

  - by ADAM

  Windows died. So, I installed ubuntu, and have had difficulties downloading apps from the internet like skype or realplayer... etc. And It does not recognize my password. I needed to install drivers for my wireless from cd-rom. It does not show where to save new downloaded files and…

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• Reasons why crontab does not work

  - by Adam Matan

  Many a time and oft, crontab scripts are not executed as expected. There are numerous reasons for that, for example: wrong crontab notation, permissions, environment variables and many more. This community wiki aims to aggregate the top reasons for crontab scripts not being executed…

  Read the article

• Collision detection with non-rectangular images

  - by Adam Smith

  I'm creating a game and I need to detect collisions between a character and some parts of the environment. Since my character's frames are taken from a sprite sheet with a transparent background, I'm wondering how I should go about detecting collisions between a wall and my character…

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• cocos2d event handler not fired when reentering scene

  - by Adam Freund

  I am encountering a very strange problem with my cocos2d app. I add a sprite to the page and have an event handler linked to it which replaces the scene with another scene. On that page I have another button to take me back to the original scene. When I am back on the original…

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• Instantiate proper class based on some input

  - by Adam Backstrom

  I'm attempting to understand how "switch as a code smell" applies when the proper code path is determined by some observable piece of data. My Webapp object sets an internal "host" object based on the hostname of the current request. Each Host subclass corresponds to one…

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• What is the value to checking in broken unit tests?

  - by Adam W.

  While there are ways of keeping unit tests from being executed, what is the value of checking in broken unit tests? I will use a simple example. Case sensitivity. The current code is Case Sensitive. A valid input into the method is "Cat" and it would return an enum of…

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• Problems installing Ubuntu on unallocated space

  - by Adam

  I've been trying to install Ubuntu on some unallocated space, but I'm getting confused with the manual partition setup. I didn't want to try the other options for it suggested that everything on my drive would be erased (but I might be wrong) I have an old(ish) laptop…

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• How to "reverse-backport" a package available on earlier Ubuntu distribution to later Distribution?

  - by Adam Ryczkowski

  There are 4 packages I am using on 12.04 which are not available on 12.10: xkcd-browser ;-) cuttlefish bluphone xserver-xorg-input-synaptics (it allows for touchpad rotation that could go along screen rotation with randr) Is there any way of more-or-less automatic…

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• This November, Join Me in Stockholm and Amsterdam

  - by Adam Machanic

  Late last year, I was invited by Raoul Illyés, a SQL Server MVP from Denmark, to present a precon at the 2013 edition of SQLRally Nordic. I agreed and decided to skip the US PASS Summit this year and instead visit an area of Europe I've never seen before. A bonus came…

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• Object-based content management system

  - by Adam Maras

  I remember hearing within the last year or two about a content management system either being released or developed that was centralized around product/item information. I'm aware that there are several CMSes that have this capability, but this particular one was…

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• Importing Data from Google Analytics

  - by Adam Tannon

  I am planning on building a web app with many different public-facing HTTP servers; each of which will have Google Analytics (GA) installed on them. I'd like to create a "dashboard" app that consolidates the GA data into one screen. I've been perusing the…

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• Facebook App EULA & Restrictions: What can't they do that my web app can?

  - by Adam Tannon

  I have written a nifty little web app (in Java/GWT/JS) and have been experimenting with the idea of making it available through Facebook as a Facebook App as well. After spending some time reading Facebook's developer docs, it seems like I can just create…

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