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• Your favorite LiveCD

  - by sova

  Perhaps this is a question better suited for linux.se but since I have servers on all environments I was wondering what your favorite LiveCD is. Wiki defines this, for those unfamiliar, as a CD or DVD containing a bootable computer operating system. Live CDs are unique in that they have the ability to run a complete, modern operating system on a computer lacking mutable secondary storage, such as a hard disk drive. Live USB flash drives are similar to live CDs, but often have the added functionality of automatically and transparently writing changes back to their bootable medium. I tend to stick with Knoppix, and today I have to register the machine on the network before I can get any of my utilities running via IP. Any suggestions?

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• Where, in an object oriented system should you, if at all, choose (C-style) structs over classes?

  - by Anto

  C and most likely many other languages provide a struct keyword for creating structures (or something in a similar fashion). These are (at least in C), from a simplified point of view like classes, but without polymorphism, inheritance, methods, and so on. Think of an object-oriented (or multi paradigm) language with C-style structs. Where would you choose them over classes? Now, I don't believe they are to be used with OOP as classes seem to replace their purposes, but I wonder if there are situations where they could be preferred over classes in otherwise object-oriented programs and in what kind of situations. Are there such situations?

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• List all versions of a package

  - by askb

  Is there a equivalent of this command; yum list kernel-headers --showduplicates on Ubuntu with apt-get, apt-cache etc. The above command lists various versions of the kernel-headers rpm available on F20/RHEL or installations. Closet I can get using apt-cache showpkg, not sure if there is a better way ? $ apt-cache showpkg linux-image Package: linux-image Versions: Reverse Depends: firmware-crystalhd,linux-image systemtap,linux-image fiaif,linux-image Dependencies: Provides: Reverse Provides: linux-image-3.13.0-27-lowlatency 3.13.0-27.50 linux-image-3.13.0-27-generic 3.13.0-27.50 linux-image-3.13.0-24-lowlatency 3.13.0-24.47 linux-image-3.13.0-24-generic 3.13.0-24.47 linux-image-3.13.0-24-lowlatency 3.13.0-24.46 linux-image-3.13.0-24-generic 3.13.0-24.46 Expecting similar output: $ yum list kernel-headers --showduplicates Loaded plugins: langpacks, refresh-packagekit Installed Packages kernel-headers.x86_64 3.11.10-301.fc20 @fedora Available Packages kernel-headers.x86_64 3.11.10-301.fc20 fedora kernel-headers.x86_64 3.14.4-200.fc20 updates This would help me simply do a downgrade or upgrade to a specific version.

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• How strict are standard employer IP agreements about coding outside of work?

  - by JosephRT

  I'm in negotiations for a position with a large corporation and I'm reading their employment terms. In their IP/copyright section they state that anything that I do outside of work that is "similar" to what I perform on the job is also theirs. I understand that it's intentionally very vague to protect them, but I'm also a little nervous that it could be abused. The way I read it, anything I produce outside of work could be claimed as well, because it would fall under "programming". Is this relatively standard? Could I negotiate more specific terms (I have asked if I could get clarification)? Should I be worried that they could abuse this? I just don't want to be caught in a situation where come up with a (potentially) great idea outside of work and they swoop down and lay claim to it.

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• How do developers find the time to stay on top of latest technologies?

  - by u2sonderzug

  I was a freelance web developer until circa 2004 when I started going down the management route but have decided to try to get back into development again (specifically JavaScript and HTML5 web/mobile web apps) and I really get the impression to be truly good at these and similar fast moving technologies a constant amount of time is required to be set aside to invest in getting better at existing skills in addition to learning new skills. I understand right now since I am getting back into things there is a pretty steep learning curve, but seeing how good many guys are out there - the only way I see of getting up there is putting in a serious amount of time. For those working as fulltime developers, what I am trying to understand is this - on most days, how much time in the office is spent actually grinding out code compared to learning/research. I could easily spend 2-4 hours daily getting on top of the best ways to go about doing things. Do most good developers who are employed full time invest significant hours outside of work sharpening their skills? Or maybe I'm looking at all of this completely wrong?

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• How do I recover a site after WordPress' Automatic Update has failed?

  - by Metacom

  I manage several WordPress websites, and successfully recently used the Automatic Upgrade feature to bring them up to 3.1. However, on one of the sites, I received a 503 (I believe it was 503). After that I was presented with "The service is unavailable." whenever I tried to access any page, including the index page, wp-admin, etc. I had similar problems before when a WordPress site got stuck in maintenance mode, and all I needed to do was login via FTP and rename or delete the .maintenance file. I tried that in this case, but that didn't do the trick. I am now presented with "Fatal error: Call to undefined function require_wp_db() in **\wp-settings.php on line 71" I can't figure out how to fix this problem, and I was wondering if anyone else had any ideas. Any suggestions are appreciated! Thank you for reading.

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• Workflow of sharing code for small teams

  - by Mihalis Bagos

  Problem is, we have developed a small CMS, that is different per implementation (currently). Of course development of this is never complete. Sometimes, we are working on more than one project that implements it (by copying-pasting the code files of the CMS to each project), and we add a new feature that we want to share on other projects as well (these can be small ones too, ie a custom ajax JSON controller - we use MVC) What we want to do is quickly and uniformly share the code with all other projects, via a version control system (or something similar), and generally organize the workflow as we know this isn't a very good workflow that we have. What would you suggest? Also, at the momment, the software we use is Visual Studio 2010, so we are strongly considering TFS, but even if we get it we still don't know the ideal workflow, or even if TFS supports what we want to do. Edit: Also note, we have specific implementations that have modifications over the CMS base that we want to KEEP only in the project area. (ie: a specific feature that we DONT want to share with the base CMS code)

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• hypertext for research notes [closed]

  - by user967543

  I keep lots of notes as I work - code snippets, TODO lists, account details, links, comments. I currently use plain text files for this - very simple and robust but a bit last-century. I would like features similar to HTML - e.g. to embed pictures, formatting, and crucially hyperlinks within my notes. One particular use-case is an implementation of Getting Things Done - more or less, a collection of hierarchical TODO lists, which I'd implement with hyperlinks between tasks. Most WYSIWYG HTML editors seem to be aimed at web designers, creating beautiful pages for professional websites. Is there a simple tool / editor more appropriate for how I want to use it? (or advice from anyone doing the same)

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• Split Texture2D Across Line

  - by Simie

  Background I'm using a texture as a damage map represented by an array of floats for displaying damage effects on a space ship in a process. An upside of this is being able to 'slice' ships in half, using an input damage map with a line down the middle, as shown in the diagram below. Question However, I'm encountering problems separating this split ship into two different entities. I would like to be able to split the image down the 'damage line', in a process similar to this: I don't have much idea where to start detecting the red line above. Any advice would be welcome.

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• Where to apply these akonadi settings for mysql-server?

  - by piedro

  I Am using an external mysql-server to work with akonadi. (using KDE4). Now I could solve all problems with it, but I still have to apply some settings to the "mysql-global.conf"-file of the server. That's what is suggested for example: # wait 365d before dropping the DB connection (default:8h) wait_timeout=31536000 So I tried to change this setting via the mysql console. But it's not reflected anywhere in the /etc/mysql/my.cnf file. (etc/akondai/mysql-global.conf seems to have no effect on the mysql-server either!) My question: Where to put these (or similar) settings to apply them in a way that akonadi won't drop the connection with an external server (globally I guess?)?

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• What does an interviewer notice most on my resume?

  - by Need4Sleep

  When applying for a position such as a software developer for a company, what does an interviewer notice most on my resume concerning the work i have done? Is he/she concerned with the amount of work i do with others(Open source projects), The specific accomplishments I've made in my field(programs, apps) or the amount of time i spend helping others(forums, mentoring)? For those of you who have applied and work/worked in a position similar to a software developer,In your personal experience, what do you think helped you the most in landing the job? P.s. if 'software developer' is to broad a term, i would specifically enjoy working with teams to create large applications such as dropbox / google / skype etc...

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• What to use for an event listing site? [on hold]

  - by Vykintas

  I have a site which lets users buy & sell tickets, but it's built on wordpress & buddypress. So it's very heavy and messy. I would like to re-do the whole site on something lighter, cleaner and solid. The main functionality for user would have to be as follows: Register or login via Facebook. Create events and sell tickets to them. See ticket sales statistics Upload photos and associate those with events. Buy event tickets, print pdf ticket. Comment, favourite and like events. What would be your suggestions? PHP framework? CMS? CMF? I must say that I'm a front-end dev so building a system from scratch on my own would take a while. I'd be interested more in a "skeleton" app solution or something similar.

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• Cannot boot: "No init found. Try passing init=bootarg"

  - by glutz

  After losing power, my machine rebooted to this error: “error: no init found. Try passing init=bootarg” Per similar threads on this site and others, I've tried booting from a CD and selecting "Try Ubuntu". Then open a terminal and typing: sudo fsck-y /dev/sda1. The response is: Device or resource busy while trying to open /dev/sda1. Filesystem mounted or opened exclusively by another program? This is on Ubuntu 10.10. Any ideas on what I can try next?

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• How would you tackle a pattern-finding program?

  - by Neil

  Just to be clear, I don't think this should be question better suited for stackoverflow.com simply because there's not a single answer but a wide range of possible solutions, making this question far more subjective in nature. I was curious how you guys would tackle a pattern-finding program, which is to say I'd do the following operations: I enter in some input. Program predicts my next input based on all previous inputs. Rinse. Repeat. Since the amount of input I could provide is so varied, including empty strings, conventional means such as switches or regular expressions are out, since it would require you to have an inkling of information about what to expect. I was thinking about some form of genetic algorithm, yet even then I don't have a clue as to how to approach a problem of this caliber. I think some feedback mechanism would be necessary as well as to let the program know how close it was. Anyone had to do a similar type program before?

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• background animation algorithm for single screen

  - by becool_max

  I’m writing simple strategy game (in xna), and would like to have an animated background. In my game all the actions happens inside one screen and thus standard parallax effect does not look appropriate. However, I found a video of a game with suitable background animation for my game http://www.youtube.com/watch?v=Vcxdbjulf90&feature=share&list=PLEEF9ABAB913946E6 (from 3 to 6s, while main character stays at the same place). What is the algorithm to do this stuff? It would be nice if someone can provide a reference for a similar example (language is not important).

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• My Computer in Ubuntu?

  - by Casey Hungler

  I was wondering if Ubuntu has an equivalent to the Windows feature "My Computer", which lists all available drives/storage devices. Typically, My Computer shows C:, which can be opened to view all of your directories and files. At this point, it is very similar to Ubuntu's Home Folder, but I am looking for something that allows me to view/select all available HDD's/Partitions. Here's my reason: I found a 6gb IDE HDD in my basement, and got an IDE cable for it. My desktop computer has a SATA drive in it, but has an IDE slot, so I wanted to plug it in and see what might be on it. The drive seems to be recognized in BIOS, but I can't find it in Ubuntu to view files, and Ubuntu is the only OS on that particular computer. If anyone has any ideas as to how to view the contents of that drive WITHOUT formatting it or tampering with the contents in any way, I would greatly appreciate your help. Thanks in advance!

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• Should single purpose utility app use a class

  - by jmoreno

  When writing a small utility app, that does just one thing, should that one thing be encapsulated in a seperate class, or just let it be part of whatever class/module is used to start the application? I.e. Main would consist of 2 or three lines calling the constructor and then the DoIt methods, nothing else. Or should Main be the DoIt method, with whatever functions it needs added to the main class? Asking because I want to get some alternative perspective, but couldn't find a similar question. If my google-fu is bad and there's a dup, please close.

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• What plug in or module to use with WordPress? [migrated]

  - by Qacro

  I am developing travel website where users can search and book their travel deal. It goes like this: Providers are creating their travel deals (same as some blogger create blog in WordPress); Users book wanted travel deals; Providers, who have their account where they can see if users book their deal, are notified by the email and sms about just booked (sold) deal. Site is going to be developed using WordPress. Is there any plugin or module that I can use to accomplish this, or at least something similar to reconfigure and not to take this process from scratch?

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• Downloading anything is hell and arduous without an application. Care to help out an Ubunt-noob?

  - by FilthyCasual

  Torrent from the Pirate Bay even though I have Tixati installed and working? Asks for an application which I don't have (apturl or something similar?) Trying to get the latest AMD Radeon drivers automatically installed? the main file downloads...but just shows up in a window full of files but idk where to drag them. And PlayOnLinux my one hope for gaming since Steam is buggin out without proper drivers? Can't figure out where to "mount" the DVD version it asks for. I'm so lost. I dove head first into the Linux thing thinking it was wildly superior, and maybe it is, but dang if the simplest things aren't hard to do. Any help appreciated. I've been reading guides and manuals but what I need is human experience most of all.

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• Is there a data structure for this type of list/map?

  - by Nick

  Perhaps there's a name for what I want, but I'm not aware of it. I need something similar to a LinkedHashMap in Java, but where it returns the 'previous' value if there's no value at the specified key. That is, I have a list of objects stored by an integer key (which is in units of time in my case): ; key->value 10->A 15->B 20->C So, if I were to query for a value for key 0-9, it would return null. The special part is if I queried for something 10 <= i <= 14 it would return A. Or, for i = 20, it would return C. Is there a data structure for this?

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• How to get wireless and wired network working again on my Dell Inspiron 1501?

  - by Angelo Daul

  My wireless doesn't work with Ubuntu 12.04.(it worked with 10.04 LTS) I have a Dell Inspiron 1501. I followed the steps posted below:(from a similar tag, but...) sudo apt-get install --reinstall bcmwl-kernel-source broadcom-sta-common broadcom-sta-source echo "blacklist brcmsmac" | sudo tee -a /etc/modprobe.d/blacklist.conf echo "blacklist bcma" | sudo tee -a /etc/modprobe.d/blacklist.conf ....and now i have no Network device on my PC(wired or wireless) I can use wired conection if i start my laptop with a"previsious version of Linux"...2.26.43... I am a beginner in Linux These are my hardware: 05:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [ 14e4:4311] (rev 01) 08:00.0 Ethernet controller [0200]: Broadcom Corporation BCM4401-B0 100Base-TX [ 14e4:170c] (rev 02)

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• why my site cache 2 time par day?

  - by clarawood

  I have read the FAQs and checked for similar issues: YES My site's URL (web address) is: www.adultxdating.com Description (including timeline of any changes made): I have lost my top search listings from last 4 months. I am still working on this but not getting proper guidance. This site is caching 2 times in 24Hrs. Some times sites will back in to top 10 search listing on 100s keywords, some time its gone out 1000+. anybody can help me why its happening. I have more than 200K+ incoming links and updating the site regularly. Please help. Thanks clara wood

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• In what ways can I test an image slideshow javascript code?

  - by Rahul

  I have a slideshow of images (and links) on a page. These images are part of a JSON response to a request sent after the page loads. The slideshow is set to play at an interval of 2 seconds. The slideshow can be paused, played over, and all other controls a normal slideshow would have. As a Rails dev, I proposed cucumber but the javascript guys in the team are not comfortable with ruby. I saw some cucumber for javascript libraries coming up, still in experimental stage. I checked out jasmine and related tutorials but all I could get from them is how I can carry out any internal functional testing such as credit-cart validation, etc. - which I think could actually be handled in unit testing? (Screw the research I did and) How should I go about testing this and similar components?

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• Custom keyboard shortcuts are reset. How can I make them set permanently?

  - by Awi

  I'm having a problem with both Ubuntu 12.04 and 12.10 with custom keyboard shorcuts. They are reset after a while (I can't find a pattern but it seems to be when a massive upgrade happens). It happend to me a couple of days ago, when 12.10 got about 27 updates. I've searched launchapd and askubuntu, and found no question similar. My shortucts are not lost on reboot, I still can't find a pattern to identify the problem as I said. I tried also not using Control Center app, but gnome's dconf-editor, but same result as I found on some blog post. My question is, how can I save my custom shorcuts to restore them when this happens? Can somebody help me compose a bug for launchpad, like what package could be causing this, so I can fill a bug report. Thanks in advance.

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• How can I pull data from PeopleSoft on demand?

  - by trpt4him

  I work in IT at a university and I'm working with about 5 different departments to develop a new process for students to apply to a specific school within the university (not the university as a whole). We're using a web-based college application vendor and adding the applicant questions for the school itself to the main university application. Currently the main application feeds into PeopleSoft. The IT staff here is building a new table to hold just our school's applicant data. I want to be able to access that data from PeopleSoft for use in external applications, but our IT staff doesn't really seem to understand what I'm requesting, as they simply tell me I can have access to the PS query tools. The problem is, I don't want to run just ad hoc queries, I want to be able to connect from outside PeopleSoft and show current data within the external app. I am unable to find documentation or get a clear answer to my question. Does PeopleSoft support access via a web services API or anything similar, and does that sound like the right direction for me to take?

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