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• apt-get update bzip2 errors

  - by Tejas Kale

  I installed Ubuntu 11.10 today on my Lenovo w500. After that when i tried running sudo apt-get update This is the error i am getting. Get:117 http://ftp.jaist.ac.jp oneiric-security/universe TranslationIndex [73 B] 99% [48 Sources bzip2 0 B] [22 Sources bzip2 5,294 kB] 1,983 kB/s 0s bzip2: Compressed file ends unexpectedly; perhaps it is corrupted? *Possible* reason follows. bzip2: Inappropriate ioctl for device Input file = (stdin), output file = (stdout) It is possible that the compressed file(s) have become corrupted. You can use the -tvv option to test integrity of such files. You can use the `bzip2recover' program to attempt to recover data from undamaged sections of corrupted files. I found the following similar question : Errors while updating Ubuntu 11.10 , But the solutions mentioned ( changing the download server, running apt-get clean, apt-get autoclean) and have also tried removing the /var/cache/apt/archives/lists direcotry. As a result of this, I am unable to install any new packages.

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• Which paradigm to use for writing chess engine?

  - by poke

  If you were going to write a chess game engine, what programming paradigm would you use (OOP, procedural, etc) and why whould you choose it ? By chess engine, I mean the portion of a program that evaluates the current board and decides the computer's next move. I'm asking because I thought it might be fun to write a chess engine. Then it occured to me that I could use it as a project for learning functional programming. Then it occured to me that some problems aren't well suited to the functional paradigm. Then it occured to me that this might be good discussion fodder.

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• Retain only dependencies of a given package

  - by Karthik

  I am trying to have a minimal version of Ubuntu, having only those packages necessary to run mininet. So, I would like a solution, where I would be able to uninstall all the packages from the system, except those that are needed to run mininet. A much more preferable solution would be to be able to create a new ISO, with mininet and all it's dependencies. Is there any program out there which is already capable of this? If not please guide me on how I can solve my problem? Note: I need to retain not only the direct dependencies of mininet, but also dependencies of dependencies and so on. The final system should be able to run mininet without a hitch.

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• Fusion Applications Outreach Continues: Europe

  - by mvaughan

  By Misha Vaughan, Applications User Experience The Oracle Applications User Experience team recently completed training in Europe for a select group of Oracle application solution consultants. The goal was to educate them about Oracle's investment in the Fusion User Experience. This group of newly trained Applications User Experience Sales Ambassadors (SAMBA), continues a program of educational outreach about Oracle's investment in usability across the suites. Katie Candland, Director, Applications User Experience, talks about the Fusion User Experience in Munich, Germany, recently. If you would like to hear more about the Fusion User Experience, Oracle's deep investment in this space, and how it extends to our existing product lines including JD Edwards, Siebel, E-Business Suite, and more, feel free to contact us. We can point you to a resource local to your area, including specially trained speakers 

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• OPN Exchange @ OpenWorld - General Sessions on Sunday, 30. September 15:30 - 16:30 PDT

  - by rituchhibber

  Are you building your personal conference schedule already? Exclusively to partners who registered for the OPN Exchange program. Add the OPN Exchange General Sessions to your agenda, now adding up to total 49 OPN Exchange sessions throughout the week. If you have registered for Oracle OpenWorld and would like to attend these 49 partner-dedicated sessions, just add OPN Exchange to your registration* for just $100 by 28. September 2012. *Note: Upgrades available to all conference passes, except Discover and Exhibitor Staff pass holders. For Discover and Exhibitor Staff pass holders, please contact the Oracle OpenWorld Registration Team at: Tel: +1.650.226.0812 (International) Monday through Friday, 6:00 a.m. to 6:00 p.m. (Pacific time) or by Email at [email protected]

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• Firefox Nighty 19.0a1 doesn't integrate with the taskbar (12.04)

  - by JamesTheAwesomeDude

  Okay, we all know how the "Normal" Firefox has the Menu Bar (File, Edit, View, etc.,) integrated with the taskbar at the top of the screen, just like every other program in Ubuntu (with the exception of programs run with gksu.) Now, I downloaded and installed the Nightly build of Firefox, and have been using it via the launcher (I finally figured all that out!) but whenever I run the Nightly build, the menu bar is separate, like so: http://i.imgur.com/Xogbs.png How do I fix this? I remember there being some sort of extension that did that, but I can't find it anymore.

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• SSIS: Building SQL databases on-the-fly using concatenated SQL scripts

  - by DrJohn

  Over the years I have developed many techniques which help automate the whole SQL Server build process. In my current process, where I need to build entire OLAP data marts on-the-fly, I make regular use of a simple but very effective mechanism to concatenate all the SQL Scripts together from my SSMS (SQL Server Management Studio) projects. This proves invaluable because in two clicks I can redeploy an entire SQL Server database with all tables, views, stored procedures etc. Indeed, I can also use the concatenated SQL scripts with SSIS to build SQL Server databases on-the-fly. You may be surprised to learn that I often redeploy the database several times per day, or even several times per hour, during the development process. This is because the deployment errors are logged and you can quickly see where SQL Scripts have object dependency errors. For example, after changing a table structure you may have forgotten to change any related views. The deployment log immediately points out all the objects which failed to build so you can fix and redeploy the database very quickly. The alternative approach (i.e. doing changes in the database directly using the SSMS UI) would require you to check all dependent objects before making changes. The chances are that you will miss something and wonder why your app returns the wrong data – a common problem caused by changing a table without re-creating dependent views. Using SQL Projects in SSMS A great many developers fail to make use of SQL Projects in SSMS (SQL Server Management Studio). To me they are invaluable way of organizing your SQL Scripts. The screenshot below shows a typical SSMS solution made up of several projects – one project for tables, another for views etc. The key point is that the projects naturally fall into the right order in file system because of the project name. The number in the folder or file name ensures that the projects the SQL scripts are concatenated together in the order that they need to be executed. Hence the script filenames start with 100, 110 etc. Concatenating SQL Scripts To concatenate the SQL Scripts together into one file, I use notepad.exe to create a simple batch file (see example screenshot) which uses the TYPE command to write the content of the SQL Script files into a combined file. As the SQL Scripts are in several folders, I simply use several TYPE command multiple times and append the output together. If you are unfamiliar with batch files, you may not know that the angled bracket (>) means write output of the program into a file. Two angled brackets (>>) means append output of this program into a file. So the command-line DIR > filelist.txt would write the content of the DIR command into a file called filelist.txt. In the example shown above, the concatenated file is called SB_DDS.sql If, like me you place the concatenated file under source code control, then the source code control system will change the file's attribute to "read-only" which in turn would cause the TYPE command to fail. The ATTRIB command can be used to remove the read-only flag. Using SQLCmd to execute the concatenated file Now that the SQL Scripts are all in one big file, we can execute the script against a database using SQLCmd using another batch file as shown below: SQLCmd has numerous options, but the script shown above simply executes the SS_DDS.sql file against the SB_DDS_DB database on the local machine and logs the errors to a file called SB_DDS.log. So after executing the batch file you can simply check the error log to see if your database built without a hitch. If you have errors, then simply fix the source files, re-create the concatenated file and re-run the SQLCmd to rebuild the database. This two click operation allows you to quickly identify and fix errors in your entire database definition.Using SSIS to execute the concatenated file To execute the concatenated SQL script using SSIS, you simply drop an Execute SQL task into your package and set the database connection as normal and then select File Connection as the SQLSourceType (as shown below). Create a file connection to your concatenated SQL script and you are ready to go.   Tips and TricksAdd a new-line at end of every fileThe most common problem encountered with this approach is that the GO statement on the last line of one file is placed on the same line as the comment at the top of the next file by the TYPE command. The easy fix to this is to ensure all your files have a new-line at the end.Remove all USE database statementsThe SQLCmd identifies which database the script should be run against.  So you should remove all USE database commands from your scripts - otherwise you may get unintentional side effects!!Do the Create Database separatelyIf you are using SSIS to create the database as well as create the objects and populate the database, then invoke the CREATE DATABASE command against the master database using a separate package before calling the package that executes the concatenated SQL script.    

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• How can you print a text file via gedit from the command line?

  - by dan

  I'd like to use gedit or some similar program just as a page formatter and pipe some text through it and onto the printer. | lpr just doesn't cut it in the presentation department. The printed output is subpar, even if I try to tinker with the margin and font size options. But I like the way text looks like when printed from gedit. Is there a way to have the best of both worlds and use a command line pipeline to print a text file with gedit-quality formatting?

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• How do I restrict my kids' computing time?

  - by Takkat

  Access to our computer (not only to the internet) needs to be restricted for the accounts of my kids (7, 8) until they are old enough to manage this by themselves. Until then we need to be able to define the following: the hours of the day when computing is o.k. (e.g. 5 - 9 pm) the days of the week when computing is not o.k. (e.g. mondays to fridays) the amount of time allowed per day (e.g. 2 hours) In 11.10 all of the following that used to do the job don't work any more: Timekpr: for 11.10 not available through the ppa. The installed version from 11.04 does not work in 11.10. Timoutd: command line alternative, but in 11.10 removed from the repositories. Gnome Nanny: Looks great but repeatedly crashes to force restarting X-server. So we can't use or recommed this program at the moment. Are there any other alternatives?

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• Do employers prefer software engineering over CS majors?

  - by Joey Green

  I'm in grad school at a university that was one of the first to have a software engineering accredited program. My undergrad is in CS. An employer recently recruited at our university and hired 5 SE majors. None of them were CS. Do employers prefer software engineering majors? The reason I ask is because I can focus on many different areas during my graduate studies and really want to take the classes that will help me land a great job. Right now I'm either going to use CUDA and parallelize an advanced ray-tracer for a graduate project or do research on non-photo-realistic rendering in augmented reality. Pursuing these would leave very little SE classes in my schedule. If I went the software engineering route, I would probably either do research into data-oriented programming or software design complexity. Sometimes I think when I'm 40 and look back will it matter at all? For some reason I'm thinking not.

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• Is there an alternative to javascript for the web that can do multi-threading and synchronous execution?

  - by rambodash

  I would like to program web applications as I do with desktop programming languages, where the code is synchronously executed and browser doesn't freeze when doing loops. Yes I know there are workarounds using callbacks and setTimeout, but they are all workarounds after all and they don't give the same flexibility when programming in the orthodox way I've been looking at Dart as a possibilty, but I can't seem to find where it says it can do either of these. The same with haxe, emscript, and the hundreds of other converters that try to circumvent javascript. In the end it gets converted to Javascript so you ultimately have to be conscious about asynchronous/multi threading.

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• Game programming in C++ [closed]

  - by Asaf

  I am a new programmer. I know C++ quite well and I know C# very good. I'm really eager to learn how to program games well and I cant really find where to start learning from. I have never developed any graphics in C++ , only a crappy game with windows forms graphics. I'm really into game programming and hoping I can get employed in it in the future. I'd be glad to have some advice about this. Thanks in advance, Asaf

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• Growing Plants that have been Exposed to Lunar Soil [Video]

  - by Asian Angel

  Lunar soil was brought back to Earth during the days of NASA’s Apollo program and scientists eagerly started conducting experiments with it. This short video discusses some of the research and results when plants from Earth were exposed to soil from the Moon. You can read more about these experiments by visiting the blog post linked below. The blog post also contains additional links related to the research. Gardening on the Moon [BoingBoing] Growing Plants in Moon Dirt [YouTube] HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me? HTG Explains: How Windows 8′s Secure Boot Feature Works & What It Means for Linux

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• Enterprise Java and Hibernate [closed]

  - by KyelJmD

  I am now done learning the JavaSE. Now , I want to jump out of my comfort zone and learn how to program /create web applications using java. First My Question: What is the difference between Enterprise Java and Hibernate? are they a like? or Hibernate is a framework for java? Now that I am done learning "Core" java I need to move ahead. what are the things I need to learn to use Hibernate? and learn java. as of now I have no idea where should I go after learning "core java". and I don't know what path to go to

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• How can one manage thousands of IF...THEN...ELSE rules?

  - by David

  I am considering building an application, which, at its core, would consist of thousands of if...then...else statements. The purpose of the application is to be able to predict how cows move around in any landscape. They are affected by things like the sun, wind, food source, sudden events etc. How can such an application be managed? I imagine that after a few hundred IF-statements, it would be as good as unpredictable how the program would react and debugging what lead to a certain reaction would mean that one would have to traverse the whole IF-statement tree every time. I have read a bit about rules engines, but I do not see how they would get around this complexity.

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• Why do I have to choose between "management" and "technical" tracks in my career?

  - by Stephen Gross

  I was recently laid off, and although I found a new gig I'm a bit frustrated with how career tracks work in the land of software development. I really love doing a bit of everything: coding, testing, architect(ing), leadership/management, customer contact, requirements gathering, staff development, etc. Software companies, however, want me to fit into a niche: I'm either a coder, a tester, or a manager. When I try to explain to them that I'm best when I'm doing all of those at once, they seem very confused. I'm sympathetic to their interests, but at the same time frustrated that the industry works this way. Any advice? Do I just need to get with the program, so to speak?

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• Symbolic link not allowed or link target not accessible: /var/www on Ubuntu 11.04

  - by Jamie Hutber

  I am getting a 403 when i access http://mayfieldafc.local/ upon looking in the apache logs i am getting [Wed Nov 16 12:32:59 2011] [error] [client 127.0.0.1] Symbolic link not allowed or link target not accessible: /var/www I have what i believe to be the correct permissions set on /var/www. hutber can create and delete files, hutber being my user. I can also execute as program on this folder. in mayfields vhost its: <Directory /var/www/mayfieldafc/docroot> Options +FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> I am pulling my hair out not being able to work on my sites with my work ubuntu install. I know of nothing else that could be effecting this. So any ideas?

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• Enablement 2.0 Get Specialized!

  - by mseika

  Enablement 2.0 Get Specialized! Oracle PartnerNetwork Specialized program is releasing new certifications on our latest products, and partners are invited to be the first candidates. Oracle Taleo Enterprise Cloud Service 2012 Specialization · New Specialist Guided Learning Paths Available! · Oracle Taleo Cloud Service 2012 Sales Specialist · Oracle Taleo Cloud Service 2012 PreSales Specialist · Oracle Taleo Cloud Service 2012 Support Specialist · New Specialist Assessments Available! · Oracle Taleo Cloud Service 2012 Sales Specialist Assessment · Oracle Taleo Cloud Service 2012 PreSales Specialist Assessment · Oracle Taleo Cloud Service 2012 Support Specialist Assessment · Coming Soon! - New Certified Implementation Specialist Exam! · Oracle Taleo Cloud Service 2012 Recruiting Certified Implementation Specialist Contact UsPlease direct any inquiries you may have to Oracle Partner Enablement team [email protected].

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• Enablement 2.0 Get Specialized!

  - by mseika

  Enablement 2.0 Get Specialized! Oracle PartnerNetwork Specialized program is releasing new certifications on our latest products, and partners are invited to be the first candidates. Oracle Taleo Enterprise Cloud Service 2012 Specialization · New Specialist Guided Learning Paths Available! · Oracle Taleo Cloud Service 2012 Sales Specialist · Oracle Taleo Cloud Service 2012 PreSales Specialist · Oracle Taleo Cloud Service 2012 Support Specialist · New Specialist Assessments Available! · Oracle Taleo Cloud Service 2012 Sales Specialist Assessment · Oracle Taleo Cloud Service 2012 PreSales Specialist Assessment · Oracle Taleo Cloud Service 2012 Support Specialist Assessment · Coming Soon! - New Certified Implementation Specialist Exam! · Oracle Taleo Cloud Service 2012 Recruiting Certified Implementation Specialist Contact UsPlease direct any inquiries you may have to Oracle Partner Enablement team [email protected].

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• Enablement 2.0 Get Specialized!

  - by mseika

  Enablement 2.0 Get Specialized! Oracle PartnerNetwork Specialized program is releasing new certifications on our latest products, and partners are invited to be the first candidates. Oracle Taleo Enterprise Cloud Service 2012 Specialization · New Specialist Guided Learning Paths Available! · Oracle Taleo Cloud Service 2012 Sales Specialist · Oracle Taleo Cloud Service 2012 PreSales Specialist · Oracle Taleo Cloud Service 2012 Support Specialist · New Specialist Assessments Available! · Oracle Taleo Cloud Service 2012 Sales Specialist Assessment · Oracle Taleo Cloud Service 2012 PreSales Specialist Assessment · Oracle Taleo Cloud Service 2012 Support Specialist Assessment · Coming Soon! - New Certified Implementation Specialist Exam! · Oracle Taleo Cloud Service 2012 Recruiting Certified Implementation Specialist Contact UsPlease direct any inquiries you may have to Oracle Partner Enablement team [email protected].

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• how to write good programming logic?

  - by user106616

  recently I got job as a java developer, and now I have assigned project too. I want to know what is a good logic? when I check in the code my team lead is saying that its a good code. But when it comes to my project manager he is saying that its a bad code. And he is changing my code, after his changes if I see his code its really very very good and even simple. can you please tell me how to develop the good program, good logic? what is the best way to structure a problem in terms of code?

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• Error when adding indicator in quickly

  - by tachyons

  I just started new project using quickly Eevery thing work perfectly .I decided to add an indicator to my program I used the command quickly add indicator using the command quickly add indicator . After that my project stoped working It shows the following error quickly run /usr/lib/python2.7/dist-packages/gi/overrides/Gtk.py:391: Warning: g_object_set_property: construct property "type" for object `Window' can't be set after construction Gtk.Window.__init__(self, type=type, **kwargs) Traceback (most recent call last): File "bin/mytube", line 33, in <module> mytube.main() File "/home/aboobacker/mytube/mytube/__init__.py", line 33, in main window = MytubeWindow.MytubeWindow() File "/home/aboobacker/mytube/mytube_lib/Window.py", line 35, in __new__ new_object.finish_initializing(builder) File "/home/aboobacker/mytube/mytube/MytubeWindow.py", line 24, in finish_initializing super(MytubeWindow, self).finish_initializing(builder) File "/home/aboobacker/mytube/mytube_lib/Window.py", line 75, in finish_initializing self.indicator = indicator.new_application_indicator(self) File "/home/aboobacker/mytube/mytube/indicator.py", line 52, in new_application_indicator ind = Indicator(window) File "/home/aboobacker/mytube/mytube/indicator.py", line 20, in __init__ self.indicator = AppIndicator3.Indicator('mytube', '', AppIndicator3.IndicatorCategory.APPLICATION_STATUS) TypeError: GObject.__init__() takes exactly 0 arguments (3 given) How to fix it ?

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• Audio Panning using RtAudio

  - by user1801724

  I use the RtAudio library. I would like to implement an audio program where I can control the panning (e.g. shifting the sound from the left channel to the right channel). In my specific case, I use RtAudio in duplex mode (you can find an example here: duplex mode). It means that I link the microphone input to the speaker output. I have searched on the web, but I did not find anything useful. Should I apply a filter on the output buffer? What kind of filter?

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• Audio Panning using RtAudio

  - by user1801724

  I use Rtaudio library. I would like to implement an audio program where I can control the panning (e.g. shifting the sound from the left channel to the right channel). In my specific case, I use a duplex mode (you can find an example here: duplex mode). It means that I link the microphone input to the speaker output. I seek on the web, but I did not find anything useful. Should I apply a filter on the output buffer? What kind of filter? Can anyone help me? Thanks

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• Enablement 2.0 Get Specialized!

  - by mseika

  Enablement 2.0 Get Specialized! Oracle PartnerNetwork Specialized program is releasing new certifications on our latest products, and partners are invited to be the first candidates. Oracle Taleo Enterprise Cloud Service 2012 Specialization · New Specialist Guided Learning Paths Available! · Oracle Taleo Cloud Service 2012 Sales Specialist · Oracle Taleo Cloud Service 2012 PreSales Specialist · Oracle Taleo Cloud Service 2012 Support Specialist · New Specialist Assessments Available! · Oracle Taleo Cloud Service 2012 Sales Specialist Assessment · Oracle Taleo Cloud Service 2012 PreSales Specialist Assessment · Oracle Taleo Cloud Service 2012 Support Specialist Assessment · Coming Soon! - New Certified Implementation Specialist Exam! · Oracle Taleo Cloud Service 2012 Recruiting Certified Implementation Specialist Contact UsPlease direct any inquiries you may have to Oracle Partner Enablement team [email protected].

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