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• Is there any simple way to access installed programs?

  - by Anentropic

  Just installed Ubuntu for the first time... Is there any simple way to browse installed programs? On Mac there is the Applications top-level folder... here I see Desktop, Documents, Downloads etc but no Apps? That'd be a good idea, no? (is there some way to create this myself?) On Windows there is the Start menu... Here it seems like I have to click the 'Dash Home' and then I can see 'Recent Apps' ... I can search for them (I'd rather not) ...or I can click the ruler/pencil icon at the bottom and see 'Recent Apps' and click to expand 'Installed Apps' ...ok that's all of them - is it possible to get a straight list view instead of the hard-to-scan wrapped rows? Also, is there any way to get rid of the pointless random selection of 'Apps available for download' at the bottom?

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• Why can't my jsp page read chinese chars from mysql? [migrated]

  - by Canking

  The mysql chars is utf-8, and the jsp page is also set to utf-8. I use the method: DriverManager.getConnection("jdbc:mysql://localhost:3306/jsptest?"+"useUnicode=true&characterEncoding=UTF-8","root",""); But it can not be use. When I insert Chinese chars into mysql and select it out, that would be proper functioning. The question is when I select some Chinese chars that I write into mysql at first, it would be all the "?" at the Chinese char place! Please watch the picture:

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• "BAD idea" warning when trying to recover Grub, after Windows removed it

  - by Shazzner

  Tried sudo grub-install on sda1 but it complained about being a BAD IDEA. I had to install windows for a work related issue so I used a separate disk (I had used it for ubuntu on this computer, but bought a bigger disk so installed ubuntu on that and left the old one in in case I needed an old file). Windows installed fine but overwrote Grub. So if I choose the Ubuntu disk to boot first in BIOS I get a blank screen. I googled and followed this advice: https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows However, when I get down to this section: sudo grub-install --root-directory=/media/0d104aff-ec8c-44c8-b811-92b993823444 /dev/sda1 I get this: Attempting to install GRUB to a partition instead of the MBR. This is a BAD idea… --recheck does nothing. Any ideas?

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• PLS HELP!!How to boot windows 7 after installing ubuntu 12.10?

  - by user113553

  Im new to linux and im interested in learning it so I installed ubuntu 12.10 yesterday. Installation went smoothly and i chose "install alongside windows option" and I set about 50 gb using that slider and i tot i used 50 gb from c: drive but to my shock it used 50 gb space from f: drive. This was my first shock.Then when i restarted n tried to log into windows, nothing happened a black screen appeared saying "To restart press alt+ctrl+delete" but even pressing that it wont restart. No matter how many times i try rebooting windows is not booting same black screen saying restart appears. But i can log in to ubuntu and i can see that windows c: drive is fine. PLEASE HELP ME!!!!

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• Why are the proposed BADSIG (on apt-get update) fixes secure?

  - by EvanED

  I'm running apt-get update, and I see errors like W: GPG error: http://us.archive.ubuntu.com precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> It's not hard to find instructions on how to fix these problems, for instance by asking for the new keys with apt-key adv --recv-keys or rebuilding the cache; so I'm not asking about how to fix these. But why is this the right thing to do? Why is "oh, I need new keys? Cool, go get new keys" not just defeating the purpose of having a signed repository in the first place? Are the keys signed by a master key that apt-key checks? Should we be doing some additional validation to ensure that we're getting legitimate keys?

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• Does CSS Positioning Affect SEO [duplicate]

  - by etangins

  This question is an exact duplicate of: Make Offscreen Sliding Content Without Hurting SEO [duplicate] If I positioned the very first content that appears in my code below the fold, would that content be given less weight and therefore be less effective with SEO? In addition, if I had a large image that took up most of the top of the screen and resulting in my content being below the fold or toward the bottom of the screen, would that content be given less weight? Note This is content that occurs early on in my code. I'm not talking about having a ton of content and if the content that occurs later would be given less weight, but if content that occurs early on put ends up below the fold would be given less weight.

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• Where can I post software challenges and offer prizes as a way to outsource some work?

  - by r0u1i

  My apologies if this is off-topic, I thought this question suits this site better than stackoverflow. We have a few rather small and bounded problems in my company that we would love to outsource. Since they are very similar to challenges ("prove this and this can be done" rather than "supply the code"), we thought of posting them as challenges and offer prizes to the first guys who will crack them up. The outsourcing sites I know off (TopCoder, ODesk) are more interested in long term contracts with monthly pay. Is there a site better matching my needs out there?

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• Are there Negative Impact of opensource on commercial environment?

  - by Lostsoul

  I know this is not a good fit for Stack Overflow but wasn't sure if it was good for this site also so let me know if its not and I'll delete it. I love programming for fun but my role in my company is not technical. I have always loved the hacker culture and have been trying to drive that openness within my company from day one. My company has a very broad range of products and there are a few that are not strategic to us so I wanted to open source them (so we can focus on what makes us unique and open source the products that every firm has). Our industry does not open source(we would be the first firm to try this) and the feedback I'm getting from my management team is either 1) we'll destroy the industry or 2) all competitive commercial firms will unite against us and we'll be wiped out either way. I disagreed on both points because I think transparency will only grow our industry and our firm (think of McDonalds/KFC sharing their recipe openly, people may copy you, competitors may target you, but customers also may feel more comfortable buying your product. The value add, I believe, is in the delivery and experience not in hoarding the recipe). It's a big battle in my firm right now between the IT people who have seen the positive effects of sharing and the business people who think we'll be giving up everything (they prefer we sell parts we want to opensource, but in their defense this is standard when divesting something). Our industry is very secretive and I don't want to put anyone(even my competitors employees) out of a job yet I don't want to protect inefficient people by not being open with everyone. Yet I've seen so many amazing technologies created in interesting ways just by giving people freedom to take apart code and put it back together. I'm interested in hearing people's thoughts(doesn't have to be to my specific situation, I'm looking for the general lessons). Its a very stressful decision(but one I feel I must make) because if we go the open source route then there will be no going back. So what are your thoughts? Does open sourcing apply generally or is it only really applicable to software? Is it overall good for people in the industry and outside? I'm actually more interested in the negativeness effects(although positive are welcomed as well) Update: Long story short, although code is involved this is not so much about code as it is more about the idea of open sourcing. We are a mid sized quant hedge fund. We have some unique strategies but also have the standard long/short, arbitrage, global macro, etc.. funds. We are keeping the unique funds we have but the other stuff that everyone else has we are considering open sourcing (We have put in years of work & millions of dollars into. Our funds is pretty popular and our performance is either in first or second quartile so I suspect there will be interest but I don't know to what extent). The goal is not to get a community to work for us or anything, the goal is to let anyone who wants to tinker with it do so and create anything they want (it will not be part of our product line although I may unofficially allocate some our of staff's time to assist any community that grows). Although the code base is quite large, the value in this is the industry knowledge and approaches we have acquired (there are many books on artificial intelligence and quant trading but they are often years behind what's really going on as most firms forbid their staff from discussing what they are doing). We are also considering after we move our clients out to let the software still run and output the resulting portfolios for free as well so people can at least see the results(as long as we have avail. infrastructure). I think our main choices are, we can continue to fight for market share in a products that are becoming commoditized, we can shut the funds/products down(and keep the code but no one outside of our firm will ever learn from it) or we can open source it and let people do what they want. By open sourcing it, my idea is that the talent pool in the industry will grow because right now most of our hires have the same background (CFA, MBA, similar school, same experience,etc.. because we can't spend time training people so the industry 'standardizes' most people and thus the firms themselves start to look/act similar) but this may allow us to identify talent that has never been in the industry before (if we put a GPU license then as people learn from what we did, we can learn from what they do as well and maybe apply it to other areas of our firm). I see a lot of benefits but not many negatives while my peers at the company see the opposite.

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• wifi works only after connecting through wire

  - by orustam

  I have fresh installed ubuntu 12.04. it is my first ubuntu installation and i'm a bit confused about the network connection. Wifi shows up and connects(at least it shows that the connection is established), but i can't open any pages, i've tried to ping some sites and it fails either. If i try to connect through a wire it works, what is interesting to me is that after i used my wire connection i can use my wifi properly without a wire pluged in. i think it probably has to do with my settings? I tried to find a solution but can figure it out on my own. My Proxy set to none(have applied it system wide) Please help me if you have any clue:)

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• What am I risking if I don't update my SDK/JDK and bundled runtime/JRE every time there's a security update?

  - by rob

  It seems like there's a new major security hole patched in Java every other week, and I would assume the same goes for other development platforms. After years of frustration trying to get customers to install and configure a compatible JRE on their systems, we started bundling one with our software. (By bundling, I mean we extract a copy of the JRE in our installation directory--we don't install the JRE and configure it as the system default.) The problem is, it's a hassle having to keep that JRE up-to-date because first we have to retest everything to make sure the update didn't break anything (it has broken some of our third-party dependencies in the past). How seriously, if at all, are we putting our customers at risk if we don't update our SDK/JDK and the runtime/JRE that we bundle with our product every time there's a security update? Is it reasonable to just update on a periodic schedule--say, once every 6 months or so?

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• Java ResourceLoader.getResourceAsStream local resource

  - by Dajgoro Labinac

  Before using lwjgl, i used the Graphic method, and there i displayed imageicons, and i had the picture file located in the resources. I used: ImageIcon tcard = new ImageIcon(this.getClass().getResource("RCA.png")); to load the image. Now when i load textures in lwjgl, i have to use absolute paths to locate the file: tcard = TextureLoader.getTexture("PNG", ResourceLoader.getResourceAsStream("C:/RCA.png")); I tried googling, but i didn't find anything helpful... How can i load the image from the local resources like in the first example?

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• New in Production: Fusion CRM Implementation Specialist Exams!

  - by Richard Lefebvre

  Oracle PartnerNetwork Specialized program is releasing new certifications on our latest products, and partners are invited to be the first candidates. Oracle Fusion Customer Relationship Management 11g Sales Essentials Exam (1Z0-456) – now in Production! ·               All Beta exam participants will receive their exam scores as of September 24, 2012. ·               The successful candidates will receive their certificates starting mid-October, 2012. Contact Us Please direct any inquiries you may have to Oracle Partner Enablement team at [email protected].

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• 12.04 reboots rather than shutting down

  - by Luca

  I have a ruvo with a fresh installation of 12.04. When I try and shutdown the computer reboots. Until I upgraded (by doing a fresh install) I ran it with Ubuntu 10.04 and I didn't have this issue. I have tried sudo shutdown -h now sudo shutdown -P now sudo init 0 sudo poweroff All of these cause a reboot. I have added acpi=norq to my grub file as suggested by someone in the first post below. This is being used as a mythtv frontend and I would like the power button to shut it down. I have modified the button to perform a shutdown -h now, but this too causes a reboot. I have studied the posts below and tried some of these ideas, but with no luck so far. Why do I get a reboot instead of a shutdown? Ubuntu 12.04 not shutting down properly Stuck on reboot and shutdown Shutdown does not power off computer

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• Still no wireless after b43 with Dell Inspiron 1525 (Ubuntu 12.04)

  - by DanielleN

  So I followed the instructions here http://ubuntuforums.org/showthread.php?t=1974006 about how to solve this issue. It worked for a bit and then stopped. After doing a modprobe I could at least see my network and click on it but it would not connect (I can always see it if I look under the listed wireless networks under VPN Connections, however). I'm thinking, from what I read at least, the issue might be that my wireless switch was on during those first steps. Do I now have to undo the b43 install and do it again? Or is there something else I could try? I just made the switch to Linux yesterday, so I am hesitant at this point to mess with anything on my own. I should note now that it was installed by someone who knows what they are doing, so we are all good on that front.

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• Reset Windows share password after 'Remember forever'

  - by timmit

  I've been happily connecting to a Windows share from my 14.04 machine. When I first entered the password for the share I chose to have it remembered forever. Yesterday I changed the password on the Windows machine, today I can't access the share... My searches for a solution have been in vain, most suggestions say that there is an entry in the Password & Keys (seahorse) app that should be deleted, this doesn't exist for me. I even ran seahorse as the root user to see if the key was hidden away in there, but no luck. Is there anywhere else I should be looking? Shouldn't the Nautilus app be prompting me to update my password in this scenario?

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• How to Add a Google Call Widget to Any Web Page

  - by babblescribe

  Adding a Google Call Widget to your website or blog allows visitors to contact you using your Google Voice number. The widget provides an easy and cost-effective way to provide live customer support without the customer knowing your real number. The Call Widget works using Google Voice to first call the number the customer types into the widget form. Once connected, the user is prompted to connect to the number you have configured the widget to call. Google voice connects the two numbers and you are talking away in an instant.How To Encrypt Your Cloud-Based Drive with BoxcryptorHTG Explains: Photography with Film-Based CamerasHow to Clean Your Dirty Smartphone (Without Breaking Something)

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• Cannot make NVIDIA driver work with Ubuntu 12.10

  - by user1293231

  I seem to have a problem similar to many but I didn't manage to get it solved: have a Lenovo N581 with an NVIDIA GeForce 610M have just installed a fresh Ubuntu 12.10 64 bits, + KDE and am trying to have my NVIDIA card work. Have tried all workarounds posted: purge nvidia, install kernel source/headers and then reinstall nvidia-current-updates (or just nvidia-current), do "sudo nvidia-xconfig". It does create a xorg.conf but does not much (no Module Section by the way). The result is that my system (jokey) tells me that the driver is there but not in use and I only get a 640x480 resolution. If I try to launch nvidia-settings it does indeed tell me that the nvidia driver is not used. I do all this under kde but I guess it does matter at this stage. Any hint of how to resolve this? I feel stuck and cannot use any of the acceleration which is partly why I got that laptop in the first place... thanks for any help/advise you may provide!

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• Copies of GameScene created when called additional times

  - by Orin MacGregor

  I have a game with a level select managed by a SceneManager, which basically just uses ReplaceScene. The first time I load a level everything works fine. On subsequent calls, for example: completing the level and continuing to the next, things blow up. The level loads fine, but when I try to pan the map or try to move the player the game crashes. Debugging through I found that there are multiple occurrences of self and related children like player and mapLayer. As a test, I put this code in my ccTouchesBegan: NSLog(@"test %i", [self retainCount]); The first time a level is loaded, it gives: test 2 The second time I load a level it gives: test 2 test 1 as in it spits out both values by looping through twice, not just appending an output to the last. It continues with this pattern for each subsequent load. So the third time will give 2 1 1. Particular code that causes the game to crash involve calling _tileMap.tileSize because there is a second GameScene with a tileMap that was supposedly destroyed, so it has tileSize and mapSize of 0. I noticed dealloc doesn't really ever get called, so I tried to manage some things with -(void) onExit -(void) onExit { [self unscheduleAllSelectors]; [_player stopAllActions]; //stop any animations just in case. normally handled in ccTouchesEnded [self removeAllChildrenWithCleanup:YES]; } I never replace the GameScene while I'm in a GameScene; if the level is completed it goes to a GameOver scene, or I use a back button that goes to the LevelSelect scene. This is [the relevant parts of] my init, in case something like the adding of children matters: -(id) init { _mapLayer = [CCLayer node]; //load data for level GameData *gameData = [GameDataParser loadData]; int selectedChapter = gameData.selectedChapter; int selectedLevel = gameData.selectedLevel; Levels *chapterLevels = [LevelParser loadLevelsForChapter:selectedChapter]; //loop until we get selected level, then do stuff for (Level *level in chapterLevels.levels) { if (level.number == selectedLevel) { //load the level map _tileMap = [CCTMXTiledMap tiledMapWithTMXFile:level.file]; } } _background = [_tileMap layerNamed:@"Background"]; _foreground = [_tileMap layerNamed:@"Foreground"]; _meta = [_tileMap layerNamed:@"Meta"]; _meta.visible = NO; //initialize Spawn Point object and place player there CCTMXObjectGroup *objects = [_tileMap objectGroupNamed:@"Objects"]; NSAssert(objects != nil, @"'Objects' object group not found"); NSMutableDictionary *spawnPoint = [objects objectNamed:@"SpawnPoint"]; NSAssert(spawnPoint != nil, @"SpawnPoint object not found"); int x = [[spawnPoint valueForKey:@"x"] intValue] / retinaScaling; int y = [[spawnPoint valueForKey:@"y"] intValue] / retinaScaling; //setup animations [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"MouseRightAnim_24x21.plist"]; CCSpriteBatchNode *spriteSheet = [CCSpriteBatchNode batchNodeWithFile:@"MouseRightAnim_24x21.png"]; [_mapLayer addChild:spriteSheet z:1]; NSMutableArray *rightAnimFrames = [NSMutableArray array]; for(int i = 1; i <= 3; ++i) { [rightAnimFrames addObject: [[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName: [NSString stringWithFormat:@"MouseRight%d_24x21.png", i]]]; } CCAnimation *rightAnim = [CCAnimation animationWithSpriteFrames:rightAnimFrames delay:0.1f]; self.player = [CCSprite spriteWithSpriteFrameName:@"MouseRight2_24x21.png"]; _player.position = ccp(x, y); self.rightAction = [CCRepeatForever actionWithAction:[CCAnimate actionWithAnimation:rightAnim]]; rightAnim.restoreOriginalFrame = NO; [spriteSheet addChild:_player]; //get map size in pixels mapHeight = _tileMap.contentSize.height; mapWidth = _tileMap.contentSize.width; //setup defaults //this value works well for the calculation later, trial and error really distance = 150; lastGoodDistance = 150; mapScale = 1; [self setViewpointCenter:_player.position]; [_mapLayer addChild:_tileMap]; [self addChild:_mapLayer z:-1]; self.isTouchEnabled = YES; } return self; } And here's the SceneManager code for replacing scenes: +(void) goGameScene { CCLayer *gameLayer = [GameScene node]; [SceneManager go:gameLayer:[GameHUD node]]; } //this is what every call looks like besides the GameScene one above +(void) goLevelSelect { [SceneManager go:[LevelSelect node]:nil]; } +(void) go:(CCLayer *)layer: (CCLayer *)hudLayer { CCDirector *director = [CCDirector sharedDirector]; CCScene *newScene = [SceneManager wrap:layer:hudLayer]; if ([director runningScene]) { [director replaceScene:newScene]; } else { [director runWithScene:newScene]; } } +(CCScene *) wrap:(CCLayer *)layer: (CCLayer *)hudLayer { CCScene *newScene = [CCScene node]; [newScene addChild: layer]; if (hudLayer != nil) { [newScene addChild: hudLayer z:1]; } return newScene; } Any ideas why I'm getting these fatal artifacts? I'm hoping this isn't considered too localized since it basically combines 3 tutorials that anyone could end up following. (Ray Wenderlich Animations, Tim Roadley Scene Manager, Pan and Zoom with Tiled Maps.

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• How to get BURG on 12.10 (Quantal Quetzal)

  - by Warpspace

  I've been using BURG for years to get rid of the eye sore that is the standard GRUB interface. When I upgraded to Quantal, the repository does not contain the updated information. I.e. after I add sudo add-apt-repository ppa:n-muench/burg sudo apt-get update I get the annoying response W: Failed to fetch http://ppa.launchpad.net/n-muench/burg/ubuntu/dists/quantal/main/binary-amd64/Packages 404 Not Found It's been like this for a month, contrary to various websites which say it works. Is BURG being maintained? Have they created a better alternative (such as integration with GRUB, like it should have been in the first place). How do I get a decent-looking bootloader?

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• Is there a repository of game logic algorithms?

  - by New2This

  I'm writing my first 2D game, and I'm writing some tracking logic for the computer enemies. Basic follow-the-player tracking was easy, but ineffectual. Too easy to escape. So I'm trying to implement some more sophisticated flanking and other tactics, and (as expected) it's pretty tricky. This is a topic I know nothing about. I'm going to keep trying, but it'd be awesome to have some examples or tips to work off of. Is there any place that has a decent set of pseudocode AI algorithms, or tips or advice on the subject, e.g. for 2D tracking?

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• How do I install OSQA with limited access to the server?

  - by Noir

  I would very much like to install OSQA on my host (provided/owned by my friend), but I can not make heads or tails of how I would go about doing it; a lot of the dependancies and such can't be installed with the current level of access (or most probably just knowledge) that I have. I can provide any further information required, and attempt to contact (friend) to see if he can do any of it for me, but I'm unsure as to how often I will be able to contact him. exec and shell_exec are not disabled on the server. If there are any other alternatives that I could use, please let me know! I tried Qwench but that was pretty buggy. I can usually deal with these kind of things, but this is my first foray into Python stuff!

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• Changed profiles; lost Ubuntu; how do I get it back?

  - by Tim

  Installed Ubuntu-secure-remix 12.10 in a dual boot with Windows 8 on an HP laptop. A first-time Linux user, I was exploring settings when I changed profiles (not sure what I changed it to). Now the Linux boots into what I believe is the shell. I can still log in (that is, I am already a user - so that's still there). Due possibly to using rEFInd, I cannot figure how to run Ubuntu in recovery mode. How can I get Ubuntu back up and running again? Thanks in advance.

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• Length of Page Title, URL, Meta Description and total number of links on a page

  - by MJWadmin

  We've been examining a number of different SEO tools recently. Several of these tell us that some of our page title's, urls and meta descriptions are too long. We've also been told that some of our pages have too many links on them. I guess our first question is - is any of that feedback true! Can URL's etc actually be too long and if so how much does this affect ranking? Secondly can you have too many links on a page and if so, how many is too many? Thanks in advance...

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• Why not write all tests at once when doing TDD?

  - by RichK

  The Red - Green - Refactor cycle for TDD is well established and accepted. We write one failing unit test and make it pass as simply as possible. What are the benefits to this approach over writing many failing unit tests for a class and make them all pass in one go. The test suite still protects you against writing incorrect code or making mistakes in the refactoring stage, so what's the harm? Sometimes it's easier to write all the tests first as a form of 'brain dump' to quickly write down all the expected behavior in one go.

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• All command need privilage

  - by Am1rr3zA

  I try to install Hping3 in my ubuntu 8.04 but after installation when I want to Hping3 I got this error: Command 'hping3' is available in '/usr/sbin/hping3' The command could not be located because '/usr/sbin' is not included in the PATH environment variable. This is most likely caused by the lack of administrative priviledges associated with your user account. also when I try to run ifconfig I get this: Command 'ifconfig' is available in '/sbin/ifconfig' The command could not be located because '/sbin' is not included in the PATH environment variable. This is most likely caused by the lack of administrative priviledges associated with your user account. first it needs to run sudo su and then run the command. is it normal? or I miss something? when I run echo $PATH I get: /usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/home/amirreza/simulator/ns-allinone-2.33/bin:/home/amirreza/simulator/ns-allinone-2.33/tcl8.4.18/unix:/home/amirreza/simulator/ns-allinone-2.33/tk8.4.18/unix:/home/amirreza/simulator/ns-allinone-2.33/ns-2.33/:/home/amirreza/simulator/ns-allinone-2.33/nam-1.14/

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