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• Earmarks of a Professional PHP Programmer

  - by Scotty C.

  I'm a 19 year old student who really REALLY enjoys programming, and I'm hoping to glean from your years of experience here. At present, I'm studying PHP every chance I get, and have been for about 3 years, although I've never taken any formal classes. I'd love to some day be a programmer full time, and make a good career of it. My question to you is this: What do you consider to be the earmarks or traits of a professional programmer? Mainly in the field of PHP, but other, more generalized qualifications are also more than welcome, as I think PHP is more of a hobbyist language and may not be the language of choice in the eyes of potential employers. Please correct me if I'm wrong. Above all, I don't want to wast time on something that isn't worth while. I'm currently feeling pretty confident in my knowledge of PHP as a language, and I know that I could build just about anything I need and have it "work", but I feel sorely lacking in design concepts and code structure. I can even write object oriented code, but in my personal opinion, that isn't worth a hill of beans if it isn't organized well. For this reason, I bought Matt Zandstra's book "PHP Objects, Patterns, and Practice" and have been reading that a little every day. Anyway, I'm starting to digress a little here, so back to the original question. What advice would you give to an aspiring programmer who wants to make an impact in this field? Also, on a side note, I've been working on a project with a friend of mine that would give a fairly good idea of where I'm at coding wise. I'm gonna give a link, I don't want anyone to feel as though I'm pushing or spamming here, so don't click it if you don't want to. But if you are interested on giving some feedback there as well, you can see the code on github. I'm known as The Craw there. https://github.com/PureChat/PureChat--Beta-/tree/

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• Can't install Skype on Ubuntu 12.04 64 bit

  - by Gabriel Alvim

  I've tried many different ways: I downloaded the file on the Skype website, which returned me this error "Cannot install ia-32-libs" I followed this instructions https://help.ubuntu.com/community/Skype and here is what I got: **W: Failed to fetch http://archive.canonical.com/ubuntu/dists/precise/partner/Packages/binary-amd64/Packages 404 Not Found [IP: 91.189.92.191 80] W: Failed to fetch http://archive.canonical.com/ubuntu/dists/precise/partner/Packages/binary-i386/Packages 404 Not Found [IP: 91.189.92.191 80] E: Some index files failed to download. They have been ignored, or old ones used instead.** I even tried this command line: sudo apt-get install lib32stdc++6 lib32asound2 ia32-libs libc6-i386 lib32gcc1 skype And this is what I got: **Error: need a repository as argument pandora@ubuntu:~$ sudo apt-get install lib32stdc++6 lib32asound2 ia32-libs libc6-i386 lib32gcc1 skype Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: ia32-libs : Depends: ia32-libs-multiarch skype : Depends: skype-bin E: Unable to correct problems, you have held broken packages.** I just don't know what to do anymore, if I can't use skype, I might as well not use ubuntu at all. Please, someone help

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• Installing Skype on 12.04 64 bit causes errors

  - by Wolfy87

  Hi there I am trying to install Skype through apt-get but I am having some trouble. The Skype package depends on skype-bin which is not found in my list of packages. So when trying to install Skype I get the following error. $ sudo apt-get install skype Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: skype : Depends: skype-bin but it is not installable E: Unable to correct problems, you have held broken packages. Does anyone know why this might happen? Am I missing a repository? I get similar results when downloading the .deb from their site. But it complains about ai32-libs not being installable. This is because it depends on another package that does not exist in my list. Please bear in mind that this is a custom install from the company I work for. They have secured it and I think they have updated it over time and skipped versions, possibly breaking things.

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• Everything has an Interface [closed]

  - by Shane

  Possible Duplicate: Do I need to use an interface when only one class will ever implement it? I am taking over a project where every single real class is implementing an Interface. The vast majority of these interfaces are implemented by a single class that share a similar name and the exact same methods (ex: MyCar and MyCarImpl). Almost no 2 classes in the project implement more than the interface that shares its name. I know the general recommendation is to code to an interface rather than an implementation, but isn't this taking it a bit too far? The system might be more flexible in that it is easier to add a new class that behaves very much like an existing class. However, it is significantly harder to parse through the code and method changes now require 2 edits instead of 1. Personally, I normally only create interfaces when there is a need for multiple classes to have the same behavior. I subscribe to YAGNI, so I don't create something unless I see a real need for it. Am I doing it all wrong or is this project going way overboard?

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• Should I cache the data or hit the database?

  - by JD01

  I have not worked with any caching mechanisms and was wondering what my options are in the .net world for the following scenario. We basically have a a REST Service where the user passes an ID of a Category (think folder) and this category may have lots of sub categories and each of the sub categories could have 1000 of media containers (think file reference objects) which contain information about a file that may be on a NAS or SAN server (files are videos in this case). The relationship between these categories is stored in a database together with some permission rules and meta data about the sub categories. So from a UI perspective we have a lazy loaded tree control which is driven by the user by clicking on each sub folder (think of Windows explorer). Once they come to a URL of the video file, they then can watch the video. The number of users could grow into the 1000s and the sub categories and videos could be in the 10000s as the system grows. The question is should we carry on the way it is currently working where each request hits the database or should we think about caching the data? We are on using IIS 6/7 and Asp.net.

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• Wine on Ubuntu 12.04 64bit. wine : Depends: wine1.4 but it is not going to be installed

  - by Nikola Borisov

  I'm running Ubuntu 12.04 64bit and I want to install wine nikola@carbon:~$ sudo apt-get install wine [sudo] password for nikola: Sorry, try again. [sudo] password for nikola: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: wine : Depends: wine1.4 but it is not going to be installed E: Unable to correct problems, you have held broken packages. nikola@carbon:~$ I spend 4 hours and I have not made any progress. I don't get it. Ubuntu is a popular distro, wine is very common thing for people to want to run. Using 64bit system is what everyone should be doing (I don't even get why are there 32 bit version of ubuntu). Here is how the dependencies looks like: wine - wine1.4 wine1.4 - wine1.4-amd64 wine1.4-amd64 - wine1.4-common wine1.4-common - wine1.4 I see a problem here.... :( Please help me.

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• Triangulating a partially triangulated mesh (2D)

  - by teodron

  Referring to the above exhibits, this is the scenario I am working with: starting with a planar graph (in my case, a 2D mesh) with a given triangulation, based on a certain criterion, the graph nodes are labeled as RED and BLACK. (A) a subgraph containing all the RED nodes (with edges between only the directly connected neighbours) is formed (note: although this figure shows a tree forming, it may well happen that the subgraph contain loops) (B) Problem: I need to quickly build a triangulation around the subgraph (e.g. as shown in figure C), but under the constraint that I have to keep the already present edges in the final result. Question: Is there a fast way of achieving this given a partially triangulated mesh? Ideally, the complexity should be in the O(n) class. Some side-remarks: it would be nice for the triangulation algorithm to take into account a certain vertex priority when adding edges (e.g. it should always try to build a "1-ring" structure around the most important nodes first - I can implement iteratively such a routine, but it's O(n^2) ). it would also be nice to reflect somehow the "hop distance" when adding edges: add edges first between the nodes that were "closer" to each other given the start topology. Nevertheless, disregarding the remarks, is there an already known scenario similar to this one where a triangulation is built upon a partially given set of triangles/edges?

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• Are first-class functions a substitute for the Strategy pattern?

  - by Prog

  The Strategy design pattern is often regarded as a substitute for first-class functions in languages that lack them. So for example say you wanted to pass functionality into an object. In Java you'd have to pass in the object another object which encapsulates the desired behavior. In a language such as Ruby, you'd just pass the functionality itself in the form of an annonymous function. However I was thinking about it and decided that maybe Strategy offers more than a plain annonymous function does. This is because an object can hold state that exists independently of the period when it's method runs. However an annonymous function by itself can only hold state that ceases to exist the moment the function finishes execution. So my question is: when using a language that features first-class functions, would you ever use the Strategy pattern (i.e. encapsulate the functionality you want to pass around in an explicit object), or would you always use an annonymous function? When would you decide to use Strategy when you can use a first-class function?

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• How to know why my cd is not booting?

  - by Tom Brito

  I have downloaded Ubuntu 10.10 and burned the ISO but it will not boot. I discarded problems with the ISO, as I've downloaded from the official website with no errors, and burned it with no errors. I discarded problems with the burning, as looks like it was recorded with no errors here and later in another computer. I discarded problems with my DVD reader as other cds boots fine. I'm currently using Ubuntu 9.10, I know I can upgrade via internet, but I have this same problem with my Windows XP cd, so I really would like to discover what's going on here.. My Ubuntu 9.10 cd boots just right, but the new one not. What else can be? Or what more precise tests can I make to discover where's the problem? --More info What happens when I try to boot with the Ubuntu 10.10 cd is that it behavior like there's no bootable cd in the drive. It just don't find the boot on the cd, and start the HD system. My notebook is an Amazon PC Intel Celeron 1.5 with 2Gb memory, a DVD-RW driver, HD samsung with 260GB.

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• Ubuntu 12.04 Frequent Kernel Panics

  - by Jordan Johns

  Dealing with what seems to be quantum behavior here. I'm having frequent Kernel panics and the problem is very hard to locate. To cut to the chase of what is going on I am essentially getting this screen: This occurs always after login (login screen is fine, can go into my TTY's and everything). But once I log in I have anywhere from 0 (instant) to 10 seconds before everything grinds to a halt and freezes. The only way I found out that it was a kernel panic was going into a TTY while it happens. At first, I figured something must be wrong with memory. Ran memtest86, full standard test. No errors. OK. CPU problem? Windows works fine, ran prime95 and a bunch of other torture tests for many hours. Drive problem? Nope. fsck reports no problems and the smart status is ok. Overclocking problem? Nope. Windows is working fine, and I also reset the bios to prove the point it was not the cause. At a loss here, even trying to reinstall the thing it gives me the same problem even attempting to install ubuntu (like right after you try to select "install ubuntu" or "try ubuntu first before installing"). Anyone have any thoughts? Its very bizarre, its as if my system hates linux and is trying to tell me not to use it (that would be a terrible reality). Thanks!

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• A terminal emulator for ex-Windows users

  - by Dan

  There are several things I would like to be better in Ubuntu Terminal Emulator. coloring, like in the source code Copy and paste keyboard shortcuts that I used all the time in Windows: Ctrl-C and Ctrl-V (Most of people here in Ubuntu use Ctrl+C and Ctrl+V keyboard shortcuts to copy and paste everywhere except the terminal! I think it's annoying for newcomers, and I don't worry about historical reasons) A feature to save all the output to log file UPDATE: Can the terminal be a powerful feature-full user-friendly tool like a modern IDE? The Linux user can spend 30% of time in the terminal. Programmers no longer code in a notepad. Can I see the history pane? Suggestions? Directory pane? Commands list? Search for words in an output? Contextual behavior? "Search in Google" for a mouse right-click. Tips and tricks learning? Time is money! Please, people, give me a link to the 21st - century terminal.

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• MvcReportViewer v.0.4.0 is available!

  - by Ilya Verbitskiy

  Originally posted on: http://geekswithblogs.net/ilich/archive/2014/06/04/mvcreportviewer-v.0.4.0-is-available.aspxToday I released new version of MvcReportViewer. This release contains mostly bug fixes reported by library users. I am glad to see that Open Source model works and people try to contribute to the project! Thank you everybody for your bug repots and help with the project. Version 0.4.0 Added support for ASP.NET MVC 5 Removed jQuery dependency. I have not tested it on IE8 or earlier versions. Any help with testing is welcome! Fixed problem with SSRS keep-alive cookies. Keep-alive cookies are issued every time a report is opened during a browser session. Many people don't restart their browsers and in my case, Chrome doesn't get rid of the cookie session data on close - had to manually delete them for the reports to start working again. I added KeepSessionAlive control settings to manage SSRS keep-alive behavior. It is set to false by default to fix Bad Request 400: Request Too Long issue. You can find usage example in Fluent.cshtml. Fixed the bug when ReportViewer Control parameters was not parsed when ShowParameterPrompts parameter had not been set. Changed public static MvcReportViewerIframe MvcReportViewer method to use IEnumerable<KeyValuePair<string, object>> reportParameters instead of simple object. The reason is users reported that they mostly use multiple report parameters’ values. Added support for SSRS hosted on Windows Azure. Users should set MvcReportViewer.IsAzureSSRS property to true in Web.config to use Windows Azure authentication. I do not have Windows Azure SSRS and build the code using http://msdn.microsoft.com/en-us/library/gg552871.aspx#Authentication article. It would be nice if somebody from community tested the change or provided me a test report on Windows Azure for testing purposes.

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• Letting search engines know that different links to identical pages stress different parts of the page

  - by balpha

  When you follow a permalink to a chat message in the Stack Exchange chat, you get a view of the transcript page for the day that contains the particular message. This message is highlighted in yellow, and the page is scrolled to its position. Sometimes – admittedly rarely, but it happens – a web search will result in such a transcript link. Here's a (constructed, obviously) example: A Google search for strange behavior of the \bibliography command site:chat.stackexchange.com gives me a link to this chat message. This message is obiously unrelated to my query, but the transcript page does indeed contain my search terms – just in a totally different spot. Both the above links lead to the same content, and Google knows this, since both pages have <link rel="canonical" href="/transcript/41/2012/4/9/0-24" /> in their <head>. The only difference between the two links is Which message has the highlight css class?. Is there a way to let Google know that while all three links have the same content, they put an emphasis on a different part of the content? Note that the permalinks on the transcript page already have a #12345 hash to "point" to the relavant chat message, but Google appears to drop it.

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• Problem inserting pre-ordered values to quadtree

  - by Lucas Corrêa Feijó

  There's this string containing B, W and G (standing for black, white and gray). It defines the pre-ordered path of the quadtree I want to build. I wrote this method for filling the QuadTree class I also wrote but it doesn't work, it inserts correctly until it reaches a point in the algorithm it needs to "return". I use math quadrants convention order for insertion, such as northeast, northwest, southwest and southeast. A quadtree has all it's leafs black or white and all the other nodes gray The node used in the tree is called Node4T and has a char as data and 4 references to other nodes like itself, called, respectively NE, NW, SW, SE. public void insert(char val) { if(root==null) { root = new Node4T(val); } else { insert(root, val); } } public void insert(Node4T n, char c) { if(n.data=='G') // possible to insert { if(n.NE==null) { n.NE = new Node4T(c); return; } else { insert(n.NE,c); } if(n.NW==null) { n.NW = new Node4T(c); return; } else { insert(n.NW,c); } if(n.SW==null) { n.SW = new Node4T(c); return; } else { insert(n.SW,c); } if(n.SE==null) { n.SE = new Node4T(c); return; } else { insert(n.SE,c); } } else // impossible to insert { } } The input "GWGGWBWBGBWBWGWBWBWGGWBWBWGWBWBGBWBWGWWWB" is given a char at a time to the insert method and then the print method is called, pre-ordered, and the result is "GWGGWBWBWBWGWBWBW". How do I make it import the string correctly? Ignore the string reading process, suppose the method is called and it has to do it's job.

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• UNESCO, J-ISIS, and the JavaFX 2.2 WebView

  - by Geertjan

  J-ISIS, which is the newly developed Java version of the UNESCO generalized information storage and retrieval system for bibliographic information, continues to be under heavy development and code refactoring in its open source repository. Read more about J-ISIS and its NetBeans Platform basis here. Soon a new version will be available for testing and it would be cool to see the application in action at that time. Currently, it looks as follows, though note that the menu bar is under development and many menus you see there will be replaced or removed soon: About one aspect of the application, the browser, which you can see above, Jean-Claude Dauphin, its project lead, wrote me the following: The DJ-Native Swing JWebBrowser has been a nice solution for getting a Java Web Browser for most popular platforms. But the Java integration has always produced from time to time some strange behavior (like losing the focus on the other components after clicking on the Browser window, overlapping of windows, etc.), most probably because of mixing heavyweight and lightweight components and also because of our incompetency in solving the issues. Thus, recently we changed for the JavaFX 2.2 WebWiew. The integration with Java is fine and we have got rid of all the DJ-Native Swing problems. However, we have lost some features which were given for free with the native browsers such as downloading resources in different formats and opening them in the right application. This is a pretty cool step forward, i.e., the JavaFX integration. It also confirms for me something I've heard other people saying too: the JavaFX WebView component is a perfect low threshold entry point for Swing developers feeling their way into the world of JavaFX.

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• How to auto-mount a copied encrypted home

  - by LedZ

  How can I auto-mount and use my encrypted home that I copied to another partition on the same hard disk? I'm running Ubuntu 11.10. My encrypted home is on sda1. There I've 2 users: userA and userB. Another partition is sda3 on which I have some other Data. BTW, sda1 is formatted as EXT4, sda3 is formatted as EXT3. I did the following: I logged out from GUI (Gnome) and changed (using Ctrl+Alt+F1) to the shell. From there I logged in, changed to sudo (using sudo -s) . After then I created a new mountpoint (tmp) under /mnt (mkdir /mnt/tmp) mounted /dev/sda3 on that mountpoint /mnt/tmp (mount /dev/sda3 /mnt/tmp) copied my encrypted /home to /mnt/tmp using rsync (rsync --acvxASXH --progress --stats /home/ /mnt/tmp/). After the “copy-procedure” I looked to my “new home” in /mnt/tmp and there I found the following 3 folders: userA, userB, .ecryptfs My structure for /dev/sda3 mounted on /mnt/tmp looks like the following (userB in ecryptfs I've not listed): -userA ¦ +userB ¦ +.ecryptfs ¦ +userA ¦ + auto-mount ¦ + auto-umount ¦ + Private.mnt ¦ + Private.sig ¦ + wrapped-passphrase ¦ + .wrapped-passphrase.recorded ¦ + .Private + (encrypted file_1) + (encrypted file_2) + (encrypted file_n) Now I would like that this copy of the original home-directory should act with the same behavior as the original home-directory means, that it should be auto-mounted at reboot and give me access to my unencrypted files and after logout all my files should be encrypted again. Any suggestions?

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• What are the requirements to test a website using jquery.get() ? [migrated]

  - by Frankie

  I am working on a simple website. It has to search quite a few text files in different sub-folders. The rest of the page uses jquery, so I would like to use it for this also. The function I am looking at is .get() for downloading the files. So my main question is, can I test this on my local computer (Ubuntu Linux) or do I have to have it uploaded to a server? Also, if there's a better way to go about this, that would be nice to know. However, I'm more worried about getting it working. Thanks, Frankie PS: Heres the JS/jQuery code for downloading the files to an array. g_lists = new Array(); $(":checkbox").each(function(i){ if ($(this).attr("name") != "0") { var path = "../" + $(this).attr("name") + ".txt"; $("#bot").append("<br />" + path); // debug $.get(path, function(data){ g_lists[i] = data; $("#bot").html(data); }); } else { g_lists[i] = ""; } }); Edit: Just a note about the path variable. I think it's correct, but I'm not 100% sure. I'm new to web development. Here's some examples it produces and the directory tree of the site. Maybe it will help, can't hurt. . +-- include ¦   +-- jquery.js ¦   +-- load.js +-- index.xhtml +-- style.css +-- txt    +-- Scripting_Tools    +-- Editors.txt    +-- Other.txt Examples of path: ../txt/Scripting_Tools/Editors.txt ../txt/Scripting_Tools/Other.txt Well I'm a new user, so I can't "answer" my own question, so I'll just post it here: After asking for help on a IRC chat channel specific to jQuery, I was told I could use this on a local host. To do this I installed Apache web server, and copied my site into it's directory. More information on setting it up can be found here: http://www.howtoforge.com/ubuntu_debian_lamp_server Then to run the site I navigated my browser to "localhost" and everything works.

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• Error message when running "make" command: /usr/bin/ld: i386 architecture of input file is incompatible with i386:x86-64 output

  - by user784637

  I am unable to create a working executable file by running the make command in a tree previously built on an i386 machine. I'm getting an error message in the form of me@me-desktop:~$ make /usr/bin/ld: i386 architecture of input file `../.. /Lib/libProgram.a(something.o)' is incompatible with i386:x86-64 output I've been told and reassured that this program has been tested and successfully compiled on 64-bit Fedora. I'm running a 64-bit machine me@me-desktop:~$ uname -m x86_64 I'm running Ubuntu 10.04 me@me-desktop:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 10.04.3 LTS Release: 10.04 Codename: lucid I'm using g++ # me@me-desktop:~$ g++ --version g++ (Ubuntu 4.4.3-4ubuntu5) 4.4.3 Copyright (C) 2009 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. I'm also using libtool # me@me-desktop:~$ libtool --version ltmain.sh (GNU libtool) 2.2.6b Written by Gordon Matzigkeit <[email protected]>, 1996 Any clues as to what is going wrong?

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• How to deal with OpenGL and Fullscreen on OS X

  - by Armin Ronacher

  I do most of my development on OS X and for my current game project this is my target environment. However when I play games I play on Windows. As a windows gamer I am used to Alt+Tab switching from within the game to the last application that was open. On OS X I currently can't find either a game that supports that nor can I find a way to make it possible. My current project is based on SDL 1.3 and I can see that cmd+tab is a sequence that is sent directly to my application and not intercepted by the operating system. Now my first attempt was to hide the rendering window on cmd+tab which certainly works, but has the disadvantage that a hidden OpenGL window in SDL cannot be restored when the user tabs back to the application. First of all, there is no event fired for that or I can't find it, secondly the core problem is that when that application window is hidden, my game is still the active application, just that the window disappeared. That is incredible annoying. Any ideas how to approximate the windows / linux behavior for alt+tab?

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• Accessing ADF Faces components that are read-only from JavaScript

  - by Frank Nimphius

  Almost as a note to myself and to justify the time I spent on analyzing aproblem, a quick note on what to watch out for when working trying to access read-only ADF Faces components from JavaScript.  Those who tried JavaScript in ADF Faces probably know that you need to ensure the ADF Faces component  is represented by a JavaScript object on the client. You do this either implicitly by adding an af:clientListener component (in case you want to listen for a component event) or explicitly by setting the ADF Faces component clientComponent property to true. For the use case I looked at in JDeveloper 11g R1 (11.1.1.7) I needed to make an output text component clickable to call a JavaScript function in response. Though I added the af:clientComponent tag to the component I recognized that it also needed the clientComponent property set to true. Though I remember this as not being required in 11.1.1.6, I like the new behavior as it helps preventing read-only components from firing client side events unless you tell it to do so by setting the clientComponent property to true. Note: As the time of writing, JDeveloper 11.1.1.7 is not publicly available and I put the note in this blog as a reminder in case you ever hit a similar challenge so you know what to do.

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• In MVC , DAO should be called from Controller or Model

  - by tito

  I have seen various arguments against the DAO being called from the Controller class directly and also the DAO from the Model class.Infact I personally feel that if we are following the MVC pattern , the controller should not coupled with the DAO , but the Model class should invoke the DAO from within and controller should invoke the model class.Why because , we can decouple the model class apart from a webapplication and expose the functionalities for various ways like for a REST service to use our model class. If we write the DAO invocation in the controller , it would not be possible for a REST service to reuse the functionality right ? I have summarized both the approaches below. Approach #1 public class CustomerController extends HttpServlet { proctected void doPost(....) { Customer customer = new Customer("xxxxx","23",1); new CustomerDAO().save(customer); } } Approach #2 public class CustomerController extends HttpServlet { proctected void doPost(....) { Customer customer = new Customer("xxxxx","23",1); customer.save(customer); } } public class Customer { ........... private void save(Customer customer){ new CustomerDAO().save(customer); } } Note- Here is what a definition of Model is : Model: The model manages the behavior and data of the application domain, responds to requests for information about its state (usually from the view), and responds to instructions to change state (usually from the controller). In event-driven systems, the model notifies observers (usually views) when the information changes so that they can react. I would need an expert opinion on this because I find many using #1 or #2 , So which one is it ?

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• How to install Gyachi on ubuntu 12.10

  - by Oguz Can Sertel

  I would like to use Gyachi on ubuntu 12.10. I tried these steps but it doesn't work.. I wanted to compile it myself... but it need some libs... it made me confused... so I gave up sudo add-apt-repository ppa:adilson/experimental sudo apt-get update sudo apt-get install gyachi Thank you for your helps at first command the output: sudo add-apt-repository ppa:adilson/experimental You are about to add the following PPA to your system: Contains packages that are not in the official Debian/Ubuntu repositories and newer versions and snapshots which are not available yet in the repositories. Theses packages are experimental. Use them at your own risk. More info: https://launchpad.net/~adilson/+archive/experimental Press [ENTER] to continue or ctrl-c to cancel adding it gpg: keyring `/tmp/tmp3y3i7p/secring.gpg' created gpg: keyring `/tmp/tmp3y3i7p/pubring.gpg' created gpg: requesting key 27B81625 from hkp server keyserver.ubuntu.com gpg: /tmp/tmp3y3i7p/trustdb.gpg: trustdb created gpg: key 27B81625: public key "Launchpad Experimental Packages PPA" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) OK and after sudo apt-get update; this is (sudo apt-get install gyachi)'s output here is the output: sudo apt-get install gyachi Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package gyachi

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• The Evolution of Customer Experience in Retail - a study by Oracle and TCS

  - by Richard Lefebvre

  Two New Studies Point to the Direction Retailers are Taking in their CX Initiatives. Is it the Right Direction? The sheer velocity of change in retailing and customer behavior is forcing retailers to reinvigorate, expand and sharpen their vital Customer Experience (CX) strategies. Customers are becoming increasingly dynamic as they race to embrace the newest digital channels; shop in new ways on mobile devices, including smartphones and tablets, on the Web and in the store; share experiences socially; and interact with their preferred brands in new ways. Retailers are stepping up to their customers as they and their competitors create new modes of customer interaction. Underpinning these changes are vast quantities of customer data as customers flood digital channels and the social sphere. The informed retailer must now understand what their priorities are and what they should be for the future. To better understand this, Tata Consultancy Services (TCS) and Oracle independently launched CX-focused surveys to uncover what retailing leadership found important today. By comparing the results of these two studies together, we can further discover new insights about the industry. Click here to download this informative white paper.

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• Software Installation Failure!

  - by NIKOS ANTONIOU

  I get the same error whenever I try to install software on my laptop, for example: I want to install Pavucontrol. So, I open the terminal and I type sudo apt-get install pavucontrol and my terminal output is: Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: libgconfmm-2.6-1c2 libglademm-2.4-1c2a libpulse-mainloop-glib0 padevchooser paman paprefs pavumeter pulseaudio-module-zeroconf The following NEW packages will be installed: libgconfmm-2.6-1c2 libglademm-2.4-1c2a libpulse-mainloop-glib0 padevchooser paman paprefs pavucontrol pavumeter pulseaudio-module-zeroconf 0 upgraded, 9 newly installed, 0 to remove and 172 not upgraded. 1 not fully installed or removed. Need to get 0B/345kB of archives. After this operation, 2044kB of additional disk space will be used. Do you want to continue [Y/n]? Y perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "el_GR.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). Can't exec "locale": No such file or directory at /usr/share/perl5/Debconf/Encoding.pm line 16. Use of uninitialized value $Debconf::Encoding::charmap in scalar chomp at /usr/share/perl5/Debconf/Encoding.pm line 17. dpkg: `ldconfig' not found on PATH. dpkg: 1 expected program(s) not found on PATH. NB: root's PATH should usually contain /usr/local/sbin, /usr/sbin and /sbin. E: Sub-process /usr/bin/dpkg returned an error code (2) What is the problem and how do I fix it?

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• Easter eggs as IP protection in software

  - by Simon

  I work in embedded software, and for some reason, management wants to hide an Easter egg as means of IP protection. They call it a watermark, and since our software interact with the video preview feed (the image displayed on a screen before you take a photo), they want me to implement a trigger which will react to some unusual video input (a video konami code like dark - bright - dark - bright - whatever). When this trigger fires, something strange happens (which is outside of the normal behavior of the software). The goal is to check whether our software is included in a device. Does it sound like a good idea? I have many argument against this move: What if the konami code is too sensitive and user triggers it? Does this kind of watermark have any legal value? What if this "feature" is discovered by the client? The performance penalty should be very small, since the soft run on small devices. I am the one developping this trigger. If things go wrong, what is my responsibility? What is your opinion about this method? I can't find a link, but I remember seeing an answer on this site suggesting that putting Easter eggs for protection purpose was a good idea. Has anyone tried it with good results?

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