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• Snap Spiffy Linux Screenshots with Shutter

  <b>LinuxPlanet:</b> "Paul Ferrill introduces us to the Shutter screen grab for Linux application. Shutter offers a simple interface and a whole lot of functionality. including cursor capture, whole Web page capture, and annotations."

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• Tiny program to register work hours

  - by amin

  Hi dear ubuntu users. I'm searching for a tiny application to register my working hours so when I come to work and power on my pc it register my entrance and as a power off my pc it register me left. I know it's as simple as adding a note in gedit but I want it automated, phproject has a timer application as you start a task you push start and as you finish calculate time to register fot task , I'm searching for such small timer. thanks

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• Physics Loop in a NodeJS/Socket.IO Environment

  - by Thomas Mosey

  I'm developing a 2D HTML5 Canvas Game, and I am trying to think of the most efficient way to implement a Physics Loop on the server-end of things, running NodeJS and Socket.IO. The only method I've thought of is using setTimeout/Interval, is there any better way? Any examples would be appreciated. EDIT: The Game is a top-down Game, like Zelda and older Pokemon Games. Most of the physics done in the loop will be simple intersects.

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• Detecting Installed .NET Framework Versions

  - by João Angelo

  A new year is upon us and it’s also time for me to end my blogging vacations and get back to the blogosphere. However, let’s start simple… and short. More specifically with a quick way to detect the installed .NET Framework versions on a machine. You just need to fire up Internet Explorer, write the following in the address bar and press enter: javascript:alert(navigator.userAgent) If for any reason you need to copy/paste the resulting information then use the next command instead: javascript:document.write(navigator.userAgent)

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• ViewModelLocators

  - by samkea

  Bobby's http://blog.bmdiaz.com/archive/2010/03/31/kiss-and-tell---mvvm-and-the-viewmodellocator.aspx Kelly's http://blog.kellybrownsberger.com/archive/2010/03/31/81.aspx John Papa and Glen Block http://johnpapa.net/silverlight/simple-viewmodel-locator-for-mvvm-the-patients-have-left-the-asylum/

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• What is required to register .com.au domains?

  - by Paul

  I have a website that allows people to search for instructors. It's currently working in the USA and UK. I'm wanting to start marketing the website to the Australian market, and so have been looking at registering a .com.au domain name. What is the best way about doin this as it doesn't seem particularly simple? Apparently I need an ABN or an Australian company but as I'm not an Australian citizen this presumably would be impossible?

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• How do I burn a bootable cd on Fedora

  - by Jim

  I have a fedora system I have download ubuntu I want to write the iso image to a blamk cd so I can install it on another (windows computer) thats sick (windows is corrupt) What command line options should I use (on the fedora machine) to write a BOOTABLE image to the cd so that when the windows box is booted it will see an ISO image and boot Simple answers like use your favorite software to burn the image are not answers and that's what I find with google

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• csharptemplates

  - by csharp-source.net

  Extremely fast, simple, and reliable template engine with thorough test suite, examples, and live deployment on large website. Can nest templates for child elements and repeated elements. Works for any type of text file.

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• La ligne de code est-elle la meilleure unité de mesure d'un projet informatique ? Un diagramme les classe suivant l'importance de leur code source

  La ligne de code est elle la meilleure unité de mesure d'un projet informatique ? Un diagramme les classe suivant l'importance de leur code source L'infographiste David McCandless a publié un diagramme classant les logiciels informatiques et les sites web suivant l'importance de leur code source, du plus petit nombre de lignes de code (un simple jeu pour iPhone) au plus important (le site web healthcare.gov).Pour réaliser ce travail, il s'est inspiré de diverses sources parmi lesquelles la...

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• If a blogger writes a whole article about my website, how important are anchor texts?

  - by Noam

  If there is a full article about my web-service, with my brand name in the title, and many relevant keywords that I would like Google to consider in my rankings, and links to my web-site with simple anchor text such as <brand name> and <page title>. Does it make a big difference if I get links to the actual keywords I'm after, or is it enough that these keywords are part of the written text?

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• Review: Snap Spiffy Linux Screenshots with Shutter

  Paul Ferrill introduces us to the Shutter screen grab for Linux application. Shutter offers a simple interface and a whole lot of functionality. including cursor capture, whole Web page capture, and annotations.

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• SQL Server stored procedure to generate random passwords

  SQL Server is used to support many applications and one such feature of most applications is the storage of passwords. Sometimes there is a need to reset a password using a temporary password or generate a random password for a new user. In this tip I cover a simple stored procedure to generate random passwords that can be incorporated into your applications. Get Smart with SQL Backup Pro Powerful centralised management, encryption and more.SQL Backup Pro was the smartest kid at school Discover why.

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• Le bogue des nombres à virgule flottante refait surface en Java, il plonge le compilateur et les programmes dans des boucles infinies

  Le bogue des nombres à virgule flottante refait surface en Java Et plonge le compilateur et les programmes dans des boucles infinies Mise à jour du 08/02/2011 Quelque temps après sa correction sur PHP, le bogue étrange des nombres à virgule flottante refait surface sur un langage tout aussi populaire : Java. Ce bogue provoquait sur PHP avant sa correction le crash du système par le passage d'un simple paramètre dans l'URL, pour peu que le script convertisse en nombres ou utilise ces variables dans des opérations arithmétiques (pour plus de détails, lire ci-devant) Sur Java, un bogue similaire plon...

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• Mutable Records in F#

  - by MarkPearl

  I’m loving my expert F# book – today I thought I would give a post on using mutable records as covered in Chapter 4 of Expert F#. So as they explain the simplest mutable data structures in F# are mutable records. The whole concept of things by default being immutable is a new one for me from my C# background. Anyhow… lets look at some C# code first. using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace MutableRecords { public class DiscreteEventCounter { public int Total { get; set; } public int Positive { get; set; } public string Name { get; private set; } public DiscreteEventCounter(string name) { Name = name; } } class Program { private static void recordEvent(DiscreteEventCounter s, bool isPositive) { s.Total += 1; if (isPositive) s.Positive += 1; } private static void reportStatus (DiscreteEventCounter s) { Console.WriteLine("We have {0} {1} out of {2}", s.Positive, s.Name, s.Total); } static void Main(string[] args) { var longCounter = new DiscreteEventCounter("My Discrete Counter"); recordEvent(longCounter, true); recordEvent(longCounter, true); reportStatus(longCounter); Console.ReadLine(); } } } Quite simple, we have a class that has a few values. We instantiate an instance of the class and perform increments etc on the instance. Now lets look at an equivalent F# sample. namespace EncapsulationNS module Module1 = open System type DiscreteEventCounter = { mutable Total : int mutable Positive : int Name : string } let recordEvent (s: DiscreteEventCounter) isPositive = s.Total <- s.Total+1 if isPositive then s.Positive <- s.Positive+1 let reportStatus (s: DiscreteEventCounter) = printfn "We have %d %s out of %d" s.Positive s.Name s.Total let newCounter nm = { Total = 0; Positive = 0; Name = nm } // // Using it... // let longCounter = newCounter "My Discrete Counter" recordEvent longCounter (true) recordEvent longCounter (true) reportStatus longCounter System.Console.ReadLine() Notice in the type declaration of the DiscreteEventCounter we had to explicitly declare that the total and positive value holders were mutable. And that’s it – a very simple example of mutable types.

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• Aggregating customer service emails from multiple ecommerce sites for easy handling

  - by nitbuntu

  For one of my main customer help email addresses I use Mozilla Thunderbird with a combination of tags and saved searches. As the number of my e-commerce sites grows from 1 to more, customer service handling gets more tricky. Is there any simple and efficient way of handling emails from the different sites? Perhaps what I'm looking for is a way of aggregating customer service emails from different sites, into one place? Perhaps there's a way of already doing this within Thunderbird or Gmail?

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• Google Fiber to the Home - Joplin Edition

  - by Malcolm Anderson

  if you are within 30-40 miles of Joplin, you have got to check out http://www.broadbandbeyondborders.com/ Google is going to provide fiber-to-the-home in one community in the US. Broadband Beyond Borders will give them the experience of dealing with 6 counties, 3 states, and 10 nations (the US and 9 native american n...ations.) Follow the instructions on the web page. It was pretty simple.

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• Aciqra

  - by csharp-source.net

  Aciqra is a simple and easy to use desktop planetarium tracks the objects of the sky from anywhere on Earth to an accuracy of 1/5 of a degree for the next 1000 years.

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• Databinding a .Net WinForms ComboBox to an Enum

  - by Tim Huffam

  This is quite simple... Define the enum eg: public enum MyEnum{ ItemOne, ItemTwo, } Within the form set the datasource of the combobox to the values of the enum eg: myCombo.DataSource = System.Enum.GetValues(typeof(MyEnum)); To have the combo auto select a value based on a bound object, set the databinding of the combo eg: class MyObject{ private MyEnum myEnumProperty; public MyEnum MyEnumProperty{get {return myEnumProperty;}} } MyObject myObj = new MyObject(); myCombo.DataBindings.Add(new Binding("SelectedIndex", myObject, "MyEnumProperty");

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• Why is MaybeChannelBound callable?

  - by William Payne

  The Queue class in the python kombu library inherits from MaybeChannelBound, which in turn implements the call method (making it callable). The call() method itself is a thin wrapper around the bind() method. It is not clear why this was done, as calling the bind() method seems (to my simple mind, at least) to be clearer and more descriptive of the intent of the function. Why would somebody use the call() method in a situation like this?

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• Make OpenGL game perform better

  - by Csabi

  I have programmed an OpenGL game which just contains one F1 car and a track. It is very simple and only uses around of 10'000 - 20'000 triangles. It should run on any PC but it won't, it needs a really good graphics-card to run at a decent framerate. Can you write some methods or links to sites which would help me make my scene/game more efective? my game can be downloaded from here or directly from here

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• SSIS Basics: Setting Up Your Initial Package

  Up until now, it has been a curiously frustrating search to find out the basics of SSIS, fast, in order to get up and running quickly. No longer, as Annette Allen comes up with a simple introduction for the rest of us. What are your servers really trying to tell you? Find out with new SQL Monitor 3.0, an easy-to-use tool built for no-nonsense database professionals.For effortless insights into SQL Server, download a free trial today.

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• How to Sync iTunes to Your Android Phone

  - by Zainul Franciscus

  If you have iTunes, and you don’t have an iPhone – but an Android phone instead, syncing iTunes to your phone can be frustrating. So here are some tips to sync iTunes and make sure your cover art works well on your Android phone.How To Recover After Your Email Password Is CompromisedHow to Clean Your Filthy Keyboard in the Dishwasher (Without Ruining it)Learn How to Make HDR Images in Photoshop or GIMP With a Simple Trick

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• Data Source Connection Pool Sizing

  - by Steve Felts

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} One of the most time-consuming procedures of a database application is establishing a connection. The connection pooling of the data source can be used to minimize this overhead.  That argues for using the data source instead of accessing the database driver directly. Configuring the size of the pool in the data source is somewhere between an art and science – this article will try to move it closer to science.  From the beginning, WLS data source has had an initial capacity and a maximum capacity configuration values.  When the system starts up and when it shrinks, initial capacity is used.  The pool can grow to maximum capacity.  Customers found that they might want to set the initial capacity to 0 (more on that later) but didn’t want the pool to shrink to 0.  In WLS 10.3.6, we added minimum capacity to specify the lower limit to which a pool will shrink.  If minimum capacity is not set, it defaults to the initial capacity for upward compatibility.   We also did some work on the shrinking in release 10.3.4 to reduce thrashing; the algorithm that used to shrink to the maximum of the currently used connections or the initial capacity (basically the unused connections were all released) was changed to shrink by half of the unused connections. The simple approach to sizing the pool is to set the initial/minimum capacity to the maximum capacity.  Doing this creates all connections at startup, avoiding creating connections on demand and the pool is stable.  However, there are a number of reasons not to take this simple approach. When WLS is booted, the deployment of the data source includes synchronously creating the connections.  The more connections that are configured in initial capacity, the longer the boot time for WLS (there have been several projects for parallel boot in WLS but none that are available).  Related to creating a lot of connections at boot time is the problem of logon storms (the database gets too much work at one time).   WLS has a solution for that by setting the login delay seconds on the pool but that also increases the boot time. There are a number of cases where it is desirable to set the initial capacity to 0.  By doing that, the overhead of creating connections is deferred out of the boot and the database doesn’t need to be available.  An application may not want WLS to automatically connect to the database until it is actually needed, such as for some code/warm failover configurations. There are a number of cases where minimum capacity should be less than maximum capacity.  Connections are generally expensive to keep around.  They cause state to be kept on both the client and the server, and the state on the backend may be heavy (for example, a process).  Depending on the vendor, connection usage may cost money.  If work load is not constant, then database connections can be freed up by shrinking the pool when connections are not in use.  When using Active GridLink, connections can be created as needed according to runtime load balancing (RLB) percentages instead of by connection load balancing (CLB) during data source deployment. Shrinking is an effective technique for clearing the pool when connections are not in use.  In addition to the obvious reason that there times where the workload is lighter,  there are some configurations where the database and/or firewall conspire to make long-unused or too-old connections no longer viable.  There are also some data source features where the connection has state and cannot be used again unless the state matches the request.  Examples of this are identity based pooling where the connection has a particular owner and XA affinity where the connection is associated with a particular RAC node.  At this point, WLS does not re-purpose (discard/replace) connections and shrinking is a way to get rid of the unused existing connection and get a new one with the correct state when needed. So far, the discussion has focused on the relationship of initial, minimum, and maximum capacity.  Computing the maximum size requires some knowledge about the application and the current number of simultaneously active users, web sessions, batch programs, or whatever access patterns are common.  The applications should be written to only reserve and close connections as needed but multiple statements, if needed, should be done in one reservation (don’t get/close more often than necessary).  This means that the size of the pool is likely to be significantly smaller then the number of users.   If possible, you can pick a size and see how it performs under simulated or real load.  There is a high-water mark statistic (ActiveConnectionsHighCount) that tracks the maximum connections concurrently used.  In general, you want the size to be big enough so that you never run out of connections but no bigger.   It will need to deal with spikes in usage, which is where shrinking after the spike is important.  Of course, the database capacity also has a big influence on the decision since it’s important not to overload the database machine.  Planning also needs to happen if you are running in a Multi-Data Source or Active GridLink configuration and expect that the remaining nodes will take over the connections when one of the nodes in the cluster goes down.  For XA affinity, additional headroom is also recommended.  In summary, setting initial and maximum capacity to be the same may be simple but there are many other factors that may be important in making the decision about sizing.

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• How do I set up a .emacs initialization file? [migrated]

  - by Harry Weston

  I am using Linux Fedora 13 (Constantine) and emacs 23.1.1. I am trying to set up a .emacs file for initialization, by using emacs itself to edit and save a file .emacs in my home directory. However, although the file is there, emacs does not seem to recognize it. What might I be doing wrong, and is there a simple text for .emacs that will show me if it is being used, one that will display a message on emacs start up?

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• Shutdown/logoff script in Ubuntu 13.10

  - by TNT

  Which would be the best way to run a script upon GUI logoff, shutdown, hibernate, sleep modes? In 12.04 I think I did this in /etc/lightdm/lightdm.config, but on 13.10, the folder structure changed and when I create this script, The display manager wont even start upon boot. I am looking to implement a simple automatic truecrypt unmount command truecrypt -d but of course this would go for any script.

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