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  • Tutorial: Linux Commands: Making Bash Error Messages Friendlier

    Bash error messages, like so many error messages, can be more cryptic than helpful. But the good news is bash has a built-in mechanism for creating your own customized error messages, and you don't have to be an ace programmer to do it. Ubuntu and openSUSE already use this; Akkana Peck shows us how to do it ourselves.

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  • Java Hashed Collections

    The Java collections framework contains classes you use to maintain collections of other objects. These collection classes have different performance and ordering properties. See how the HashMap and HashSet Classes allow objects to be added to a collection, removed from a collection, or found in roughly constant time. Discover how to use these classes and what to do to achieve good performance from them.

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  • Key Components of Keyword Domination

    What stumps most online entrepreneurs is how to figure out what keywords are the most important for their online business? Of course, most of the time business owners can figure out a handful of good keywords. It's not that hard when you have the right tools in place to help you choose the best ones. You can create a very powerful tool with only a spreadsheet.

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  • With MSDN and BizSpark, Cloud Computing is Closer than You Think

    Cloud computing offers significant advantages for businesses of all sizes, and it's easier to get started than you think. Microsoft makes Windows Azure compute time available for MSDN subscribers, as well as for software start-ups through the Microsoft BizSpark program. Learn why cloud computing is a good fit for you and how you can get started.

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  • Proper Link Building - The Keystroke to Better Search Engine Page Ranking

    The SEO and the SEM are the tools to get a website within the top ten ranking on the search engine result pages. The ranking on the search engine result pages is the most essential thing needed for any website to get the maximum volume of web traffic to their site. In fact the point is that it is no good to launch a website if it remains out of the sight of the internet users.

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  • Dark Sun Dispatch 001.5 (a review of City Under The Sand)

    - by Chris Williams
    City Under The Sand - a review I'm moderately familiar with the Dark Sun setting. I've read the other Dark Sun novels, ages ago and I recently started running a D&D 4.0 campaign in the Dark Sun world, so I picked up this book to help re-familiarize myself with the setting. Overall, it did accomplish that, in a limited way. The book takes place in Nibenay and a neighboring expanse of desert that includes a formerly buried city, a small town and a bandit outpost. The book does a more interesting job of describing Nibenese politics and the court of the ruling Sorcerer King, his templars and the expected jockeying for position that occurs between the Templar Wives. There is a fair amount of combat, which was interesting and fairly well detailed. The ensemble cast is introduced and eventually brought together over the first few chapters. Not a lot of backstory on most of the characters, but you get a feel for them fairly quickly. The storyline was somewhat predictable after the first third of the book. Some of the reviews on Amazon complain about the 2-dimensional characterizations, and yes there were some... but it's easy to ignore because there is a lot going on in the book... several interwoven plotlines that all eventually converge. Where the book falls short... First, it appears to have been edited by a 4th grader who knows how to use spellcheck but lacks the attention to detail to notice the frequent occurence of incorrect words that often don't make sense or change the context of the entire sentence. It happened just enough to be distracting, and honestly I expect better from WOTC. Second, there is a lot of buildup to the end of the story... the big fight, the confrontation between good and evil, etc... which is handled in just a few pages and then the story basically just ends. Kind of a letdown, honestly. There wasn't a big finish, and it wasn't a cliffhanger, it just wraps up neatly and ends. It felt pretty rushed. Overall, aside from the very end, I enjoyed it. I really liked the insight into that region of Athas and it gave me some good ideas for fleshing out my own campaign. In that sense, the book served its purpose for me. If you're looking for a light read (got a 5-6 hour flight somewhere?) or you want to learn more about the Dark Sun setting, then I'd recommend this book.

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  • OTN: There's an App for That

    - by oracletechnet
    You want access to Oracle Technology Network updates from a mobile device, you say? Well you can have that today. The official Oracle app for iOS, Android, and BB is useful for many things, but my personal favorite is the "Developers" channel:  From there, it's trivial to consume links to things tagged by the OTN team - which may include "home" content or curated links from other places: All in all, it's a good way to stay in touch! 

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  • How to add isometric (rts-alike) perspective and scolling in unity?

    - by keinabel
    I want to develop some RTS/simulation game. Therefore I need a camera perspective like one knows it from Anno 1602 - 1404, as well as the camera scrolling. I think this is called isometric perspective (and scrolling). But I honestly have no clue how to manage this. I tried some things I found on google, but they were not satisfying. Can you give me some good tutorials or advice for managing this? Thanks in advance

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  • A Temporary Disagreement

    Last month, Phil Factor caused a furore amongst some MVPs with an article that dared to suggest that for reasonably small-scale strategic uses, and with a bit of due care and testing, table variables are a "good thing". Not everyone shared his opinion. The Future of SQL Server MonitoringMonitor wherever, whenever with Red Gate's SQL Monitor. See it live in action now.

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  • why does ubuntu 12.04 remove gparted during the installation?

    - by user09887
    04, and I expanded the progress bar when it was about 3/4 done - it was at the 'remove unnecessary parts from installation' stage. I was thinking that removing gparted was not a good idea, as it is useful for partitioning USB devices - not just the internal hds. Does anyone else think that Ubuntu shouldn't remove gparted? Thanks P.S Sorry if this is posted in the incorrect forum / place. This is my first post to Ubuntu forums. Thanks.

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  • Real Estate SEO

    To locate a good real estate SEO firm, all you need to do is search on the internet. You will find many such companies listed and then you can choose anyone. But before making your final choice, make sure you chalk out the budget and other such important components to ensure a smooth procedure.

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  • Web-Based Custom Accounting Software in PHP - Customize As Per Your Business

    Most businesses, accountants and financial auditors are still using old desktop-based accounting software for their accounting needs. This is changing though, and for very good reasons. Most of the major players in the accounting software industry have launched online software-as-a-service solutions allowing customers to pay a monthly fee to get access to their books online.

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  • Why aren't more desktop apps written with Qt?

    - by Dehumanizer
    As far as I know and have understood in my experience with Qt, it's a very good and easy to learn library. It has a very well designed API and is cross-platform, and these are just two of the many features that make it attractive. I'm interested to know why more programmers don't use Qt. Is there a deficiency which speaks against it? Which feature makes other libraries better than Qt? Is the issue related to licensing?

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  • True Ubuntu on Chromebook ARM (samsung)

    - by Vincent beaurain
    I have installed Ubuntu 13.04 on my desktop (runs like a charm). Then I used Crouton to install Ubuntu 12.04 on my chromebook samsung (ARM). It also works quite good. But here comes my question. Can we have a true Ubuntu (preferably 13.04) on my ARM chromebook? It seems that the Crouton/Ubuntu is not 100% the real thing. The best option would be to have the full Ubuntu 13.04 and remove the Chrome OS.

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  • Do Outbound Links Help in Search Engine Optimization

    A professional SEO Company can help Web sites gain popularity and improve page ranking. There are several ways to achieve good page ranking, and link popularity is one among them. There are two ways ... [Author: John Anthony - Web Design and Development - June 04, 2010]

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  • HTG Explains: Should You Buy Extended Warranties?

    - by Chris Hoffman
    Buy something at an electronics store and you’ll be confronted by a pushy salesperson who insists you need an extended warranty. You’ll also see extended warranties pushed hard when shopping online. But are they worth it? There’s a reason stores push extended warranties so hard. They’re almost always pure profit for the store involved. An electronics store may live on razor-thin product margins and make big profits on extended warranties and overpriced HDMI cables. You’re Already Getting Multiple Warranties First, back up. The product you’re buying already includes a warranty. In fact, you’re probably getting several different types of warranties. Store Return and Exchange: Most electronics stores allow you to return a malfunctioning product within the first 15 or 30 days and they’ll provide you with a new one. The exact period of time will vary from store to store. If you walk out of the store with a defective product and have to swap it for a new one within the first few weeks, this should be easy. Manufacturer Warranty: A device’s manufacturer — whether the device is a laptop, a television, or a graphics card — offers their own warranty period. The manufacturer warranty covers you after the store refuses to take the product back and exchange it. The length of this warranty depends on the type of product. For example, a cheap laptop may only offer a one-year manufacturer warranty, while a more expensive laptop may offer a two-year warranty. Credit Card Warranty Extension: Many credit cards offer free extended warranties on products you buy with that credit card. Credit card companies will often give you an additional year of warranty. For example, if you buy a laptop with a two year warranty and it fails in the third year, you could then contact your credit card company and they’d cover the cost of fixing or replacing it. Check your credit card’s benefits and fine print for more information. Why Extended Warranties Are Bad You’re already getting a fairly long warranty period, especially if you have a credit card that offers you a free extended warranty — these are fairly common. If the product you get is a “lemon” and has a manufacturing error, it will likely fail pretty soon — well within your warranty period. The extended warranty matters after all your other warranties are exhausted. In the case of a laptop with a two-year warranty that you purchase with a credit card giving you a one-year warranty extension, your extended warranty will kick in three years after you purchase the laptop. In that many years, your current laptop will likely feel pretty old and laptops that are as good — or better — will likely be pretty cheap. If it’s a television, better television displays will be available at a lower price point. You’ll either want to upgrade to a newer model or you’ll be able to buy a new, just-as-good product for very cheap. You’ll only have to pay out-of-pocket if your device fails after the normal warranty period — in over two or three years for typical laptops purchased with a decent credit card. Save the money you would have spent on the warranty and put it towards a future upgrade. How Much Do Extended Warranties Cost? Let’s look at an example from a typical pushy retail outlet, Best Buy. We went to Best Buy’s website and found a pretty standard $600 Samsung laptop. This laptop comes with a one-year warranty period. If purchased with a fairly common credit card, you can easily get a two-year warranty period on this laptop without spending an additional penny. (Yes, such credit cards are available with no yearly fees.) During the check-out process, Best Buy tries to sell you a Geek Squad “Accidental Protection Plan.” To get an additional year of Best Buy’s extended warranty, you’d have to pay $324.98 for a “3-Year Accidental Protection Plan”. You’d basically be paying more than half the price of your laptop for an additional year of warranty — remember, the standard warranties would cover you anyway for the first two years. If this laptop did break sometime between two and three years from now, we wouldn’t be surprised if you could purchase a comparable laptop for about $325 anyway. And, if you don’t need to replace it, you’ve saved that money. Best Buy would object that this isn’t a standard extended warranty. It’s a supercharged warranty plan that will also provide coverage if you spill something on your laptop or drop it and break it. You just have to ask yourself a question. What are the odds that you’ll drop your laptop or spill something on it? They’re probably pretty low if you’re a typical human being. Is it worth spending more than half the price of the laptop just in case you’ll make an uncommon mistake? Probably not. There may be occasional exceptions to this — some Apple users swear by Apple’s AppleCare, for example — but you should generally avoid buying these things. There’s a reason stores are so pushy about extended warranties, and it’s not because they want to help protect you. It’s because they’re making lots of profit from these plans, and they’re making so much profit because they’re not a good deal for customers. Image Credit: Philip Taylor on Flickr     

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  • Benefits of SEO Tools

    It is being said that manual labour is good but if you spend more time in creativity and in planning your link building campaign then your work would be smarter. There are SEO tools that help you to post your article on all on various blogs from one place. This SEO tool does not cripple the quality of SEO but it helps you and saves your time.

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  • Does SFML render graphics outside the window?

    - by ThePlan
    While working on a tile-based map I figured it would be a good idea if I would only render what the player sees on the game window, but then it occurred to me that SFML could already be optimized enough to know when it doesn't have to render those things. Let's say I draw a 30x30 squared maps (A medium one) but the player only sees a bunch of them, not entirely. Would SFML automatically hide what the player doesn't see, or should I hide it myself?

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  • Best method to do A B testing across to subdomains

    - by Lior
    I want to do an A B test of an entire site for a new design and UX with only slight changes in content (a big brand site that has good Google rankings for many generic keywords. My idea of implementation is doing a 302 redirect to the new version (placing it on www1 subdomain) and allowing only user agents of known browsers to pass. The test version will have disallow all in the robots text. Will Google treat this favorably or do I have to use Google Website Optimizer (which will give me tracking headaches)?

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  • What to do when product range evolves and site name does not reflect this?

    - by nitbuntu
    Suppose, just as an example, I have a website with domain www.gifts-for-dogs.com.....but after a few years I start selling stuff for Cats and Fish. I may not keep enough of a range of products for these other type of pets yet, so can't justify changing the domain name and logo (to something like gifts-for-pets.com) just yet....but envisage that I eventually may have to in the not too distant future. What would be a good strategy here and what are the steps I would have to consider before making these changes?

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  • Effective Website Management and Time Saving Tips

    An online store generally has good amount of products and their availability waves in and away of stock and there are products that are discarded out or leaving a dead product on your website is a gr... [Author: Alan Smith - Web Design and Development - April 23, 2010]

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  • Any technical references for game-oriented icons and symbols?

    - by willc2
    To make localizing easier, I'm using icons to show in-game information like achievements and bonuses. Coming up with good designs isn't easy, especially when it has to be integrated into the rest of the game's art style. Can I do better than looking at some random selection of existing games? Are there any reference books or sites that cover game graphics specifically? I'm looking for more theory and best-practices rather than pre-made graphics.

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  • How employable am I as a programmer?

    - by dsimcha
    I'm currently a Ph.D. student in Biomedical Engineering with a concentration in computational biology and am starting to think about what I want to do after graduate school. I feel like I've accumulated a lot of programming skills while in grad school, but taken a very non-traditional path to learning all this stuff. I'm wondering whether I would have an easy time getting hired as a programmer and could fall back on that if I can't find a good job directly in my field, and if so whether I would qualify for a more prestigious position than "code monkey". Things I Have Going For Me Approximately 4 years of experience programming as part of my research. I believe I have a solid enough grasp of the fundamentals that I could pick up new languages and technologies pretty fast, and could demonstrate this in an interview. Good math and statistics skills. An extensive portfolio of open source work (and the knowledge that working on these projects implies): I wrote a statistics library in D, mostly from scratch. I wrote a parallelism library (parallel map, reduce, foreach, task parallelism, pipelining, etc.) that is currently in review for adoption by the D standard library. I wrote a 2D plotting library for D against the GTK Cairo backend. I currently use it for most of the figures I make for my research. I've contributed several major performance optimizations to the D garbage collector. (Most of these were low-hanging fruit, but it still shows my knowledge of low-level issues like memory management, pointers and bit twiddling.) I've contributed lots of miscellaneous bug fixes to the D standard library and could show the change logs to prove it. (This demonstrates my ability read other people's code.) Things I Have Going Against Me Most of my programming experience is in D and Python. I have very little to virtually no experience in the more established, "enterprise-y" languages like Java, C# and C++, though I have learned a decent amount about these languages from small, one-off projects and discussions about language design in the D community. In general I have absolutely no knowledge of "enterprise-y" technlogies. I've never used a framework before, possibly because most reusable code for scientific work and for D tends to call itself a "library" instead. I have virtually no formal computer science/software engineering training. Almost all of my knowledge comes from talking to programming geek friends, reading blogs, forums, StackOverflow, etc. I have zero professional experience with the official title of "developer", "software engineer", or something similar.

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