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• Why isn't VIM storing macros across sessions?

  - by dotancohen

  In VIM 7.3 on Ubuntu Server 12.04.1, VIM forgets macros and registers after closing. I do have set nocompatible in .vimrc and the command :set viminfo? gives this result: viminfo='100,<50,s10,h What might be preventing the macros and registers from being stored across close / open? Note that I am not interested in storing mappings for long term use in .vimrc. Rather, sometimes (such as during refactoring) I need to perform a simple operation on a few files and I find it easier to do in VIM than with Perl. I just need the macros and registers stored across open / close, which I do have working on other servers. Thanks.

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• Enable 8th bit as Meta in zsh without a warning

  - by Bostonvaulter

  In my quest to configure my shell to work exactly how I want it with respect to the alt/meta key I am having some trouble. Recently I added "bindkey -m" to my .zshrc and now whenever I start a zsh shell (ie open a terminal window) I get this error "warning: `bindkey -m' disables multibyte support". Now since I don't care much about multibyte support atm, is there a way I can disable just this warning? Even better would be a way to use 8th-bit meta as well as multibyte. Also note that this happens on a clean zsh install on 4.3.9 and 4.3.10 My reasoning for wanting bindkey -m vim: alt mappings (my own personal commands/mappings) zsh: alt mappings (such as Alt-. to recall the last argument of the previous command) emacs: alt mappings (lots of built-ins) So, is there any way to disable this warning or otherwise accomplish what I'm trying to do?

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• Dynamic quadrees

  - by paul424

  recently I come out writing Quadtree for creatures culling in Opendungeons game. Thing is those are moving points and bounding hierarchy will quickly get lost if the quadtree is not rebuild very often. I have several variants, first is to upgrade the leaf position , every time creature move is requested. ( note if I would need collision detection anyway, so this might be necessery anyway). Second would be making leafs enough large , that the creature would sure stay inside it's bounding box ( due to its speed limit). The partition of a plane in quadtree is always fixed ( modulo the hierarchical unions of some parts) . For creatures close to the center of the plane , there would be no way of keeping it but inside one big leaf, besides this brokes the invariant that each point can be put into any small area as desired. So on the second thought could I use several quadrees ? Each would have its "coordinate axis XY" somwhere shifted ? Before I start playing with this maybe some other space diving structure would suit me better, unfortunetly wiki does not compare it's execution time : http://en.wikipedia.org/wiki/Grid_%28spatial_index%29#See_also

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• How to fix windows new line character on sftp synchronization in eclipse (pdt)

  - by superspace

  Hello, I have a problem with windows new line characters being introduced into text files on eclipse sftp synchronization (via jcraft's sftp plugin). I've set "New text file line delimiter" to Unix and have even sanitized the file with "fromdos" but every time i upload using the sftp plugin, windows new line characters can be seen in the remote file as "^M" characters (when viewed in vi). A point to note is that if i upload using an external sftp client, it's all fine. Eclipse Version: PDT (Helios) SFTP: jcraft sftp plugin Local Environment: Ubuntu 10.04 Remote Environments: FreeBSD 6.4, Debian 4.0 What am i missing? My co-workers would thank you for the solution :) Thanks in advance.

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• Ubuntu 12.04 - Custom Quick Launcher Menu

  - by gotqn

  I have been using Ubuntu for few weeks now and I am have been trying to create custom menu which to add in the launcher. Please, note that my version is 12.04 and I have not got any experience with Linux. I have checked a lot articles and questions likes this one, but have not been able to find what I am looking for. I want to create a custom quick launcher menu and to add it the the standard launcher, but I want to add links to other programs or folders in it. For example: A browsers menu - when it is open (with right mouse click on it), my browsers will be listed: chrome safari opera firefox I even may add their icons there. Music menu - some shortcuts to my favorite music folders.

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• why skype is not available on messengers like pidgin

  - by sterz

  i really like pidgin, empathy etc. (especially pidgin) because they gather all accounts like xmpp, msn etc. together except skype. i know skype uses a proprietary protocol but so does msn and it is available on pidgin. is it that hard to "put" skype on pidgin or alike messengers? what is the reason that skype is not implemented in pidgin? note: i know there is a plugin for pidgin to support skype but it requires the official skype client to be installed and running. pretty useless.

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• Lots of files being used by blank web page. What are they?

  - by byronyasgur

  I am trying to optimise a website and I was using the network waterfall facility in Google Chrome. When I looked at the results there were lots of files which I didnt recognise. I first thought they might be something to do with Google Chrome itself, so I put a blank HTML file on my desktop and checked but there was nothing in the waterfall except the file itself. So I put a blank file on my server and I got the output below. What are all these files, are they all necessary, is this normal and do I need to be in any way concerned. My hosting provider has always been excellent in every regard that I'm aware of. My host is shared hosting, using cpanel and is based on a LAMP server. I also note that a couple of those file have problems but I have no idea how to fault find that or whether it's a concern. EDIT: I have cleared the cache so I don't think it's a browser cache issue.

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• Apache Web Server character encoding

  - by OBY

  I've recently transferred my webapp from my localhost (LH) to a VPS, and have had hebrew chars-encoding probs since. Whenever I send a request with a heb-char it results in "?????" saved to the DB. My LH config was tomcat6, MySQL, and centOS 6.2, opened to the web. In the VPS env I'm behind an Apache Web Server, and the rest is quite the same (though I haven't done anything to its installation). Please note I already have had this problem before, on my LH when the request was sent from IE/chrome (not FF!). The solution was to apply a filter on the the context and change the char-type to UTF-8. My webapp content char-encode is utf-8, MySql server set to utf8 using charset utf8;, and my centOS set to iw_IL.UTF8 using export LANG=iw_IL.UTF8. When I use locale the bash output seems to be set correctly. Any suggestions?

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• Amazon EC2 hostnames

  - by Firefly

  I'm currently trying to setup a Tigase cluster on Amazon EC2 instances in a VPC and I'm having troubles getting it to work due to the hostnames of the instances not being "full DNS names". According to the Tigase documentation: Please note the proper DNS configuration is critical for the cluster to work correctly. Make sure the 'hostname' command returns a full DNS name on each cluster node. Can anyone explain what a full DNS name is and how I can set my instances to use one? Currently my instances get a default hostname of the form "ip-10-0-0-20".

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• Java SE Updates

  - by Tori Wieldt

  Duke's helpers from around the world have been busy making Java just right for all good developers. Here are the updates:  Java SE 7 Update 10This releases provides key security features and bug fixes. Oracle strongly recommends that all Java SE 7 users upgrade to this release. JavaFX 2.2.4 is now bundled with the JDK on Windows, Mac and Linux x86/x64.Learn more Download Java SE 6 Update 38  This release provides security features and bug fixes. Oracle strongly recommends that all Java SE 6 users upgrade to this release (or to Java SE 7 update 10). Learn more Download Java SE Embedded 7 Update 10 This releases provides the security features and bug fixes from Java SE 7 Update 10. Learn more Download Java SE Embedded 6 Update 38  This releases provides the security features and bug fixes from Java SE 6 Update 38. Learn more Download NOTE: The end of public updates for Java SE 6 will occur in February 2013. See "The End of Public Updates for Java SE 6" and the Java SE Support Roadmap for more information.

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• unexpected behaviour of Ctrl-a x and Ctrl-a X in screen?! regions, locking

  - by gojira

  According to the screen manual (version 4.0.2.) C-a x C-a C-x (lockscreen) Lock this terminal. C-a X (remove) Kill the current region. But what actually happens when I use it (Screen version 4.00.03 (FAU) 23-Oct-06): C-a X locks the terminal and asks me for the password. When I enter the correct passwword, I am back in screen but the region is killed (wtf) C-a x does nothing apparently Please note the differences between x (lowercase) and X (uppercase). Why is there a mixup between the functionalities of C-a X and C-a x? How can I fix this? I am on CentOS release 5 (Final).

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• Why doesn't postfix use my smtp_generic_maps?

  - by RichardTheKiwi

  What have I set up incorrectly? >postconf -n .... smtp_generic_maps = regexp:/etc/postfix/rewrite .... >cat /etc/postfix/rewrite /.*/ [email protected] >echo "test" | mail -s "test" [email protected] >tail -f /var/log/mail.log Dec 8 05:56:01 xxxxxxxxxxxx postfix/pickup[20227]: E9272709284: uid=501 from=<yyyy> Dec 8 05:56:01 xxxxxxxxxxxx postfix/cleanup[20270]: E9272709284: message-id=<[email protected]> Dec 8 05:56:01 xxxxxxxxxxxx postfix/qmgr[20228]: E9272709284: from=<[email protected]>, size=331, nrcpt=1 (queue active) Dec 8 05:56:03 xxxxxxxxxxxx postfix/smtp[20272]: E9272709284: to=<[email protected]>, relay=mailinator.com[72.51.33.80]:25, delay=1.1, delays=0.02/0.01/0.48/0.58, dsn=2.0.0, status=sent (250 Ok) FYI, I have reloaded postfix many times sudo postfix reload Note: This is on OSX 10.7.5

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• Why are "Inverted Colors" considered an accessibility feature? [migrated]

  - by RLH

  Why is it that in Apple software (OS X and iOS,) the "Inverted Colors" display feature is considered an accessibility option? I understand that some users are color-blind. This would justify the Black & White, or grey-scale modes. What I don't understand is how or why does inverting the display color help someone with any specific, visual impairment or dysfunction. As a programmer that wants to understand the need so that I can develop better, accessible software, what purpose does this feature serve to the end user who has some form of visual impairment? NOTE: I felt that this was a hard question to categorize on StackExchange. I settled here on Programmers because I assume that questions of accessibility are important to all developers and this question sits somewhere in the middle between topics that StackOverflow and SuperUser may cover. Also, this question isn't specific to Apple software. I've just noticed that this feature has been available on Macs for a very long time, it's a feature on iOS, and it's always associated with the Accessibility settings. If I can garner some information regarding the needs of some users, I think that I can develop better, accessible software.

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• Printer Canon MP540 succesfully added finally but doesn't print? (Attached Debug log)

  - by NES

  i tried to setup my printer in Ubuntu 10.10. I had to use special guide to install because Canon used libcupsys2 in its packages and ubuntu expects libscupsys i followed this guide in reference to this advice. The first problem was this one (the ubuntu "add printer dialog asked for root credentials". The suggested workarout in Launchpad to create a root password worked. Now i added the printer. It's available for printing. Then i got an error message "cups insecure filter" which prevented me from printing. That could be solved by setting the need root rights in the /usr/lib/cups/filter/ directory. The error message disappeared after restarting cups service. Now it should work but it doesn't. The main problem is now, the printer seems to be proper setup but when i try to print a document, the printer icon appears for short time in gnomepanel. There's a printing job in Queue which got completed, but the printer doesn't print. I attached the Debuglog provided by printer error control, had to upload to another site, since it was to big in the question body here. Perhaps someone can identify the problem with it? Note: i know that it once worked fine with an older release of Ubuntu, but not sure which version this was.

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• Can only connect to IIS site through localhost

  - by Rembrandt Q. Einstein

  I'm building a web service for my company's iPhone application, and everything's been working smoothly by running tests through localhost on the development machine. I'm now in the phase where I need to test connections from other computers within the network, and any connection other than localhost gives me a 404. My internal IP, 127.0.0.1, and computername all get 404 when connecting from any computer, either the one the site's hosted on or any others on the network. Telnet can get through to port 80, and I've temporarily disabled all firewalls on this machine (I do not have control over the external firewall, but I'm only testing connections within the network) Does anyone have a clue why this is happening? I was able to connect to the web service from other computers when hosted on a Mac via Apache, but because I'm now using a SQL Server connection I'm restricted to using IIS for Windows Authentication. Googling only provided answers related to firewalls, and mine is disabled note: I cannot use Anonymous Authentication, but even in testing that it did not affect the issue.

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• NATing with a single-homed machine possible?

  - by Harry

  I have the following setup: a) a single-homed machine, A, that can see the Internet. b) other machines B, C, and D that cannot see the Internet. c) A, B, C, and D can see each other. d) all machines are running either RHEL 5.3 or Fedora 16. Question: Is it possible to have B, C, and D share the Internet connection with A somehow? Note, again, that machine A does not have a second NIC installed. (The solutions that I am finding on the Net assume A to be a dual-homed system!) Also, could you please recommend a set of book(s) or online resources for a current and in-depth coverage of iptables for people with only a basic knowledge of TCP/IP?

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• some keys don't appear in xev

  - by sazary

  i can't change my screen brightness by pressing brightness keys on the keyboard, but they change through /sys/class/backlight/acpi_video0/brightness. so i started to diagnose the issue, ran xev and trying to see what happens when i press Fn+F5 or Fn+F6 which are brightness controls, and xev didn't show anything. i must note that it notifies my when i press volume controls, for example. are F5 and F6 keys working? yes, but not when i press them with Fn key. do i have any entry in xmodmap for brightness? yes: keycode 232 = XF86MonBrightnessDown NoSymbol XF86MonBrightnessDown keycode 233 = XF86MonBrightnessUp NoSymbol XF86MonBrightnessUp what's happening? and what should i do to correct it? i'm using vaio s series laptop with kubuntu precise on it. thanx ;)

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• JDeveloper News &ndash; Did You Know

  - by shay.shmeltzer

  There have been a few issues lately with access to blogs.oracle.com to write new messages – and as a result I’m a little behind on reporting the latest and greatest in JDeveloper. (I’m also unable to approve comments :-( ) But just in case you missed it here are a few note worthy things you should know: ADF Mobile Client went production – this is a solution that let you use ADF to develop on-device applications for mobile devices. You develop once and run on various devices (right now Blackberry and Windows Mobile with other platforms coming soon). For more information check out the ADF Mobile page on OTN. ADF Developer Certification goes production – you can now take the official test and get an official certification that you can include in your resume.Should be a must for any consultant looking to get ADF related gigs. Learn more about the ADF Certification Exam. ADF Vision Stencils Released – If you are looking for a quick way to draw prototypes of ADF screens you probably can’t get any faster and more accurate results than this. This is a set of Vision components that you can drag over and design a page visually. You can also set properties for components and do other advance things. You do need a license for Visio to use this, but the ADF stencils are free. We’ve been using these internally at Oracle for some time now and we thought the ADF community would enjoy these too. Download the ADF Visio Stencils here (and watch a youtube demo of how they work).

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• routing weirdness - traceroute 'vanishes' en route

  - by The Journeyman geek

  I'm attempting to set up one of my boxes as a server (again), but i'm having some odd connection issues- the box itself connects fine to the internet, but trying to connect to my external ip address seems to result in the trace getting 'lost' partway. http://pastebin.com/HCQAGbvn - this is a traceroute from another system that's connected to another ISP - starhub is my own one, while i have another system that i have access to on singtel. I'm wondering if my ISP is messing around with routing, or is something very odd going on. As you note, the traceroute dosen't reach me, but if it helps, i use a dd-wrt router. edit: Facepalmishly, turning the firewall on my router on and off fixed it. I don't get why it dropped off at different ip addresses each time, or why the router set it self to block.. everything, or why it affected the ipv6 tunnel as well.

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• File Transfer Protocol (FTP) Service won't install

  - by user64204

  Hi all, Problem description: -I'm running Windows Server 2003 and I'm trying to install the FTP service following this procedure: http://support.microsoft.com/kb/323384 -At step 7 of the above procedure I provide Windows Small Business Server 2003 disc1 and the installation completes successfully (note: the installer looks for 'ftpctrs2.dll' but the disk contains 'FTPCTRS2.DL_' and seems happy with it as per allowed file types). -However the installation silently fails because if I go back to the list of windows components, FTP is still unchecked, and if I open IIS, the FTP sites section is missing. Question: -How can I force the installation of FTP? Additional info: I don't think this is related but will mention it in case I'm wrong and it is: before I could attempt to install FTP I ran into, and fixed, the issue described in this solution: http://support.microsoft.com/kb/838860 Thanks.

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• What Software or tool to ease the building of an eye catching GUI (functional) [closed]

  - by CaBieberach

  I want to make a control panel that opens different files but I'm not sure what would be the right tool/Sw to make this. In the company we have about 30 files that we use almost every day. They are all related to each other. I would like to create a "Control panel" to ease the opening and searching of these files. Kind of a control panel with 30 buttons. The only duty of this control panel is to open one of the file selected by the user. I need this "Control Panel" to: Look GREAT Open very fast Could you please recomend me some tool/Sw to acomplish this. What tool or SW is specially focused to make stunning GUIs? Note: In the company We are all using MS Windos 7. Thanks for the help! EDIT: This would be a Stand alone program installed or saved in a network drive. Each person can open the porgram and it pops the GUI. Not for the web. "Looks GREAT" is definitively a subjective matter. I want something that gives me plenty options to display/modify the objetcs that compose the GUI. So i can experiment and find what looks and works the best.

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• Looking for an example of how a software project can be managed/deployed

  - by rguilbault

  My company is evaluating adopting off-the-shelf ALM products to aid in our development lifecycle; we currently use our own homegrown solutions to manage requirements gathering, specification documentation, testing, etc. One of the issues I am having is understanding how to move code between stages of development. We have what we call a pipeline, which consists of particular stops: [Source] - [QC] - [Production] At the first stop, the developer works out a solution to some requested change and performs individual testing. When that process is complete (and peer review has been performed), our ALM system physically moves the affected programs from the [Source] runtime environment to the [QC] runtime environment. This movement of code is triggered by advancing the status of the change request to match the stage of the pipeline. I have been searching the internet for a few days trying to find how the process is accomplished elsewhere -- I have read a bit about builds, automated testing, various ALM products, etc. but nowhere does any of this state how builds interact with initial change requests, what the triggers are, how dependencies are managed, how the various forms of testing are accommodated (e.g. unit testing, integration testing, regression testing), etc. Can anyone point me to any resources detailing specific workflows or attempt to explain (generically) how a change could/should be tracked and moved though the development lifecycle? I'd be very appreciative. Note: I've cleaned up the question to hopefully make it easier to understand. Also, I found another question (which I can't find now) that referenced this book, which sounds like it might be exactly what I am looking for -- not sure if I want to shell out the cash for it, though.

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• Cannot install VS Team System 2008 on Windows 7 Ultimate (64bit)

  - by systemX

  Hello, i am trying to install VS TS 2008 on W7 Ultimate (64bit), but i have run into errors during the setup. Please take note that i have tried to mount the iso to a virtual drive, and also extracted the iso contents to a local folder. Both methods have failed and produce the same error log below. [10/26/09,03:02:40] Runtime Pre-requisites: [2] Error: Installation failed for component Runtime Pre-requisites. MSI returned error code 1603 [10/26/09,03:02:42] VS70pgui: [2] DepCheck indicates Runtime Pre-requisites is not installed. [10/26/09,03:02:42] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2008 64bit Prerequisites (x64) was not attempted to be installed. And the list goes on and on.. This is a fresh install of W7, and i have not installed MS Office 2007 at all yet, not sure if it would be causing my errors right now.. I appreciate any help i can get thank you.

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• USB port causing device problems after new motherboard upgrade

  - by enbuyukfener

  I'm looking into a PC with an issue with one of the front USB ports (perhaps both). It was working before a motherboard upgrade but since then, a USB drive was inserted, overheated and does not appear to be working. Then a phone (with USB charging) was plugged in, and the phone OS suspended. Removing and re-inserting the battery led to the phone (and hence battery) working, however the battery no longer charges (including with a wall charger). It seems too much to be a coincidence and am wondering what the issue may be? Ideas so far are short circuiting, or over-current to the USB ports. Note: Did not occur to me, so details are not 100% accurate or complete. Feel free to ask for missing info that I may have forgotten though.

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• shrink ext4 partition

  - by user276851

  My question is similar to Move ext4 partition, but the challenge I couldn't figure out is how to shrink a partition from the start. So suppose originally the partition (with raid) is like this. (************** /dev/md127 ***************) After resizing, I want to achieve like this. (*** unallocated ***)(**** /dev/md127 ****) Note, I cannot use gparted, and parted does not support ext4. The commands I have tried so far, % resize2fs -p /dev/md127 1676G # <== This is good. % lvreduce -L 1676G /dev/md127 Path required for Logical Volume "md127" Please provide a volume group name Run `lvreduce --help' for more information. Failed here, I guess it may be because the underlying partition is primary and the lvreduce only works on logical? Anyway, no idea. Then after that, I am thinking to create another partition right after this one, copy the data to that partition, and remove this one, like. 1. (************** /dev/md127 ***************) 2. (**** /dev/md127 ****)(*** new partition **) 3. (*** unallocated ****)(**** /dev/md127 ****) Thanks for the help.

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