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• A very useful custom component

  - by Kevin Smith

  Whenever I am debugging a problem in WebCenter Content (WCC) I often find it useful to see the contents of the internal data binder used by WCC when executing a service. I want to know the value of all parameters passed in by the caller, either a user in the web GUI or from an application calling the service via RIDC or web services. I also want to the know the value of binder variables calculated by WCC as it processes a service. What defaults has it applied based on configuration settings or profile rules? What values has it derived based on the user input? To help with this I created a  component that uses a java filter to dump out the contents of the internal data binder to the WCC trace file. It dumps the binder contents using the toString() method. You can register this filter code using many different filter hooks to see how the binder is updated as WCC processes the service. By default, it uses the validateStandard filter hook which is useful during a CHECKIN service. It uses the system trace section, so make sure that trace section is enabled before looking for the output from this component. Here is some sample output>system/6    10.09 09:57:40.648    IdcServer-1    filter: postParseDataForServiceRequest, binder start -- system/6    10.09 09:57:40.698    IdcServer-1    *** LocalData *** system/6    10.09 09:57:40.698    IdcServer-1    (10 keys + 0 defaults) system/6    10.09 09:57:40.698    IdcServer-1    ClientEncoding=UTF-8 system/6    10.09 09:57:40.698    IdcServer-1    IdcService=CHECKIN_UNIVERSAL system/6    10.09 09:57:40.698    IdcServer-1    NoHttpHeaders=0 system/6    10.09 09:57:40.698    IdcServer-1    UserDateFormat=iso8601 system/6    10.09 09:57:40.698    IdcServer-1    UserTimeZone=UTC system/6    10.09 09:57:40.698    IdcServer-1    dDocTitle=Check in from RIDC using Framework Folder system/6    10.09 09:57:40.698    IdcServer-1    dDocType=Document system/6    10.09 09:57:40.698    IdcServer-1    dSecurityGroup=Public system/6    10.09 09:57:40.698    IdcServer-1    parentFolderPath=/folder1/folder2 system/6    10.09 09:57:40.698    IdcServer-1    primaryFile=testfile5.bin     system/6    10.09 09:57:40.698    IdcServer-1    ***  RESULT SETS  ***>system/6    10.09 09:57:40.698    IdcServer-1    binder end -------------------------------------------- See the readme included in the component for more details. You can download the component from here.

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• Xrandr settings don't stick; bash script fails; Nvidia; disper doesn't work

  - by bcmcfc

  I have an Nvidia graphics card. Yeah, I know. This might have to change soon. I am trying to get the resolution to set correctly on my second monitor, which is a VGA monitor with a native resolution of 1440x900. I have set up this bash script which doesn't work: xrandr --newmode "1440" 106.50 1440 1528 1672 1904 900 903 909 934 -hsync +vsync xrandr --addmode -display VGA-1 1440 xrandr --output VGA-1 --mode 1440 It outputs: xrandr: cannot find mode 1440. It has worked previously when running the commands individually but after a restart it fails. I've also just installed disper as per this question but have no idea how to use it - the help suggests the command: disper -d VGA-1 -r "1440x900" should work, but it does not. It just outputs the help text, suggesting something is wrong but not saying what. Is there any way to get these horrific Nvidia drivers working properly with a resolution that is not detected by the tools?

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• Finding "spare time" in a day from within a list of events

  - by MFB

  I have a list of events which is always sorted chronologically. The start time is always followed by the end time. Times are strings formatted as 'HHmmss'. // list of events var events = [ '010000', // start '013000', // end... '053000', '060000', '161500', '184500'] // desired output var spares = [ '000000', // start '010000', // end... '013000', '053000', '060000', '161500', '184500', '235959'] How can I programmatically create a new list of "spare time" from 000000 to 235959? PS I'm trying to do this in Javascript, but any conceptual answer or pseudo code would be helpful too.

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• Unable to mount /dev/loop0 during install

  - by AJP

  I was installing 32-bit Ubuntu(ubuntu-10.10-desktop-i386.iso) on VMWare workstation 7.1. During installation an error came up with the following text. (initramfs) mount: mounting dev/loop0 on //filesystem.squashfs failed: Input/Output error Can not mount /dev/loop0 (/cdrom/casper/filesystem.squashfs) on //filesystem.squashfs I did a memory test which was successful, but when selecting "Try Ubuntu without installing", "Install Ubuntu" or "Check disk for defects" the same error is showing up. I download the ISO image from Ubuntu website "http://www.ubuntu.com/desktop/get-ubuntu/download". As I couldn't find the checksum data, the ISO image was verified by mounting to a virtual drive and browsing the contents. The ISO image is mounted to a virtual drive in VMWare and not burnt to a CD.

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• How do I grep in a variable?

  - by Ashfame

  How to do a grep in a variable? I have stored the wget output in a variable and I need to extract out some strings from it. Like the content of the variable is upgrade http://wordpress.org/download/ http://wordpress.org/wordpress-3.0.5.zip 3.0.5 en_US 4.3 4.1.2 I need to check if the string contains the word upgrade, so I can do a simple grep and then check the exit status of it by $? and proceed. But how can I get the value 3.0.5 which is actually the fourth word? And how to actually grep in a variable?

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• How to find the occurrence of particular character in string - CHARINDEX

  - by Vipin

  Many times while writing SQL, we need to find if particular character is present in the column data. SQL server possesses an in-built function to do this job - CHARINDEX(character_to_search, string, [starting_position]) Returns the position of the first occurrence of the character in the string. NOTE - index starts with 1. So, if character is at the starting position, this function would return 1. Returns 0 if character is not found. Returns 0 if 'string' is empty. Returns NULL if string is NULL. A working example of the function is SELECT CHARINDEX('a', fname) a_First_occurence, CHARINDEX('a', fname, CHARINDEX('a', fname)) a_Second_occurrence FROM Users WHERE fname = 'aka unknown' OUTPUT ------- a_First_occurence a_Second_occurrence 1 3

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• Is there a way to make the speaker silent while the headphone-jack keeps working? 12.04LTS

  - by Cees

  The PC I am working on is in a loud environment. If I need sound, I use the headphone. On my own account this is easy: I mute the speaker in the sound-setting. I am not the only user, others use the Guest-session. And that's what this question about: Is it possible to turn off the speaker by default on a guest-session AND leave the headphone-output working? If yes, how can I fix it? I tried to loosen the speaker (hardware) connection but it is soldered to the mainboard. The soundcard on the PC is: HDA Intel at 0xfea78000 irq 44 /proc/asound/pcm ---------------------------+ ¦00-00: ALC662 rev1 Analog : ALC662 rev1 Analog : playback 1 : capture 1¦ ¦00-02: ALC662 rev1 Analog : ALC662 rev1 Analog : capture 1 Ubuntu 12.04LTS is running on the system, my account has all the (admin) rights

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• What does /dev/null mean in the shell?

  - by rishiag

  I've started learning bash scripting by using this guide: http://www.tldp.org/LDP/abs/abs-guide.pdf However I got stuck at the first script: cd /var/log cat /dev/null > messages cat /dev/null > wtmp echo "Log files cleaned up." What do lines 2 and 3 do in Ubuntu (I understand cat)? Is it only for other Linux distributions? After running this script as root, the output I get is Log files cleaned up. But /var/log still contains all the files.

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• Unable to correct problems, you have held broken packages

  - by trond

  After upgrading from 10.04 to 12.04 I am trying to install different packages. For instance ia32-libs and skype (4.0). When trying to install these, I am getting the 'Unable to correct problems, you have held broken packages' error message. Output of commands: sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. After running this: sudo dpkg --configure -a foo@foo:~$ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

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• How do I combine all lines in a text file into a single line?

  - by John

  I want to get all lines in a text into one line. I'm a beginner at coding trying to learn by doing. I've spent four hours trying to solve this problem. I know there's a simple solution to this problem. Here's what I've been trying. sed -e 'N;s/\n//' myfile.txt #Does nothing sed -e :a -e N -e 's/\n/ /' -e ta myfile.txt #output all messed up and I can't make head nor tail of the syntax cat myfile.txt | tr -d '\n' myfile.txt # Deletes all lines Here's the text file: 500212 262578-4-4 23200 GRIFFITH LABORATORIES LTD GRIFFITH LABORATORIES SOUTH DUBLIN COUNTY COUNCIL OFFICE OFFICE (INDUSTRIAL) List Rateable 2 Pineview Industrial Estate Firhouse Road Knocklyon 31 Dec 2007 01 Jan 2008" I can't figure out where I've gone wrong....

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• Unable to install ia32-libs package

  - by Ron Thomas

  I need to manually install the drivers for my graphics card, which is an ATI 2600 xt. But I am using a 64-bit platform and to do so i need the ia32-libs package. i have scoured the net for fixes, workarounds etc. but have found none that work. the output i get after trying apt-get is: Reading package lists... Done Building dependency tree Reading state information... Done Package ia32-libs is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'ia32-libs' has no installation candidate I am running linux mint 12

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• Bring 2 GB Large Pages to Solaris 10

  - by Giri Mandalika

  Few facts: 8 KB is the default page size on Oracle Solaris 10 and 11 as of this writing Both hardware and software must have support for 2 GB large pages SPARC T4 processors are capable of supporting 2 GB pages Oracle Solaris 11 kernel has in-built support for 2 GB pages Oracle Solaris 10 has no default support for 2 GB pages Memory intensive 64-bit applications may benefit the most from using 2 GB pages Prerequisites: OS: Oracle Solaris 10 8/11 (Update 10) or later Hardware: Oracle servers with SPARC T4 processors e.g., SPARC T4-1, T4-2 or T4-4, SPARC SuperCluster T4-4 Steps to enable 2 GB large pages on Oracle Solaris 10: Install the latest kernel patch or ensure that 147440-04 or later was installed Check the patch download instructions Add the following line to /etc/system and reboot set max_uheap_lpsize=0x80000000 Finally check the output of the following command when the system is back online pagesize -a eg., % pagesize -a 8192 <-- 8K 65536 <-- 64K 4194304 <-- 4M 268435456 <-- 256M 2147483648 <-- 2G % uname -a SunOS jar-jar 5.10 Generic_147440-21 sun4v sparc sun4v Also See: Solaris 9 or later: More performance with Large Pages (MPSS) Large page support for instructions (text) in Solaris 10 1/06 Solaris: How To Disable Out Of The Box (OOB) Large Page Support? Memory fragmentation / Large Pages on Solaris x86

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• Useful versioning scheme for a git project?

  - by Oliver Weiler

  I have a small github project, which I need to add an option to to output some version number on the commandline. The problem is I have no idea how to "compute" the version number. Is this some random process? Should I just start at 1.0 (probably creating a tag or something), and put a number after . for fixes? I know this question is a bit vague... I just had never to deal with this, and want to use some sane versioning scheme. EDIT Im also interested into how to update this version number automatically, maybe using something like a git hook.

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• Need multiple sound outputs to multiple speakers

  - by Usman Sajeel Haider

  How do I play 3 different music tracks at the same time on my computer, such that song1 is played in speaker1, song2 in speaker2... Is this possible programatically? What additional hardware will I need? Do I need 3 seperate sound cards? Given that the hardware is in place, how would I "route" the sound output for a particular song to a particular speaker. Alternatively, is there a special hardware that can handle multiple inputs and outputs? Appreciate your expert opinions.

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• How to document and teach others "optimized beyond recognition" computationally intensive code?

  - by rwong

  Occasionally there is the 1% of code that is computationally intensive enough that needs the heaviest kind of low-level optimization. Examples are video processing, image processing, and all kinds of signal processing, in general. The goals are to document, and to teach the optimization techniques, so that the code does not become unmaintainable and prone to removal by newer developers. (*) (*) Notwithstanding the possibility that the particular optimization is completely useless in some unforeseeable future CPUs, such that the code will be deleted anyway. Considering that software offerings (commercial or open-source) retain their competitive advantage by having the fastest code and making use of the newest CPU architecture, software writers often need to tweak their code to make it run faster while getting the same output for a certain task, whlist tolerating a small amount of rounding errors. Typically, a software writer can keep many versions of a function as a documentation of each optimization / algorithm rewrite that takes place. How does one make these versions available for others to study their optimization techniques?

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• How do I get categories for a product in Magento [closed]

  - by Joost de Valk

  I'm trying to add product_type to my Magento Google Base output based on the product's categories, but I seem to be unable to. I have the following code: // Get categories from product to include as product_type $categoryIds = $object->getCategoryIds(); foreach($categoryIds as $categoryId) { $category = Mage::getModel('catalog/category')->load($categoryId); $this->_setAttribute('product_type', $category->getName(), 'text' ); } The issue is that it returns all of the categories, not just the ones the product is in. Anyone have a solution?

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• Reading cpu temperature Intel Celeron (R) with lm-sensors

  - by tim_a

  I know there are already a lot of questions like this, but non of the answers provided there could fix my problem. I try to read out my cpu temperature with lm-sensors on my ubuntu 10.04 LTS installation but I can't get to work. I did try the command sensors-detect several times but still nothing. My computer is an old PC with an Intel Celeron (R) @ 2.60 GHz. The odd thing is that the hdd temp is shown in the applet but when I type in the terminal sensors I get the error: "No sensors found! Make sure you loaded all the kernel drivers you need." I'm not really interested in the hdd temperature but I think it is strange that these sensors do work in the applet and not in the terminal. This is the output that sensors-detect gives: http://pastebin.com/F4hVKaLU Any suggestions?

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• Lubuntu 13.04 Resolution Issue du to ppa makson96

  - by Choupa

  I've installed Lubuntu 13.04 on my notebook. (It's the first time I use Lubuntu) I had graphical issue, apparently due to the graphic driver (ATI Radeon Xpress 1200) I followed this procedure to correct my problem : sudo add-apt-repository ppa:makson96 sudo apt-get update sudo apt-get upgrade sudo apt-get install fglrx-legacy My graphical issue has been corrected but now it shows a low resolution (1024*768) and I can't change it. the xrandr result : xrandr: failed to get size of gamma output default Screen 0: minimum 1024x768, current 1027x768, maximum 1024x768 default connected 1024x768+0+0 0mmx0mm 1024x768 0.0* I've already read this topic but I don't really understand how things work there. I'd really appreciate your help ! Many thanks !

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• Can't mount data DVD using 12.04

  - by dash2

  I cannot mount a data DVD using Ubuntu 12.04. I can read the DVD using a different OS, so the DVD is not the problem. I can read other CDs using Ubuntu. The error I get is: $ sudo mount /dev/dvd /cdrom mount: no medium found on /dev/sr0 The relevant output from lshw is: *-cdrom description: DVD reader product: DVD/CDRW UJDA775 vendor: MATSHITA physical id: 0.0.0 bus info: scsi@4:0.0.0 logical name: /dev/cdrom logical name: /dev/cdrw logical name: /dev/dvd logical name: /dev/sr0 version: CB03 capabilities: removable audio cd-r cd-rw dvd configuration: ansiversion=5 status=nodisc I have installed ubuntu-restricted-extras and run /usr/share/doc/libdvdread4/install-css.sh.

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• I/O errors are reported when I try to install Ubuntu, but the SMART data is good. Is my hard disk dying?

  - by James

  When I try to install linux, it tells me there is an input output error on dev sda. I have tried both Ubuntu and Mint on two different computers. So that narrows it down to the hdd. After hours of googling and trying different things I tried making the hardrive ext4 with gparted but that comes up with an error. This makes me think that the hdd is bad. There are a few reasons I think the hdd isn't bad. I can use the hdd in windows fully. Windows and gparted disk health checks both say it is fine. Its SMART data is all good. So... help?

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• T420 Triple Head with Optimus

  - by Rolo

  I see that this is possible on a T520 apparently (Triple-head on a Lenovo T520), but I can't see anyone claiming it's possible on a T420. I'm running 12.04 and have Bumbleebee installed and working fine but I can't get the display port monitor to display anything. The power light flicks on, but things only render on my VGA output monitor, and Ubuntu's display settings don't detect the third monitor. I'm not concerned with power management, ie, am happy to leave set on discrete graphics in the BIOS if that helps. Is this possible? Thanks.

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• Left-click button inconsistently clicks in Lubuntu

  - by thebaer

  Just recently installed Lubuntu 12.10 on my Samsung N130 netbook, and left-clicking only works every once in a while. Here is the output from synclient, if it helps. Before changing MaxTapTime to 0, tapping to click worked fine. Clicking with hardware button worked fine on previous versions of Ubuntu before switching to Lubuntu on same computer. Parameter settings: LeftEdge = 1775 RightEdge = 5503 TopEdge = 1652 BottomEdge = 4662 FingerLow = 25 FingerHigh = 30 FingerPress = 256 MaxTapTime = 0 MaxTapMove = 245 MaxDoubleTapTime = 180 SingleTapTimeout = 180 ClickTime = 100 FastTaps = 0 EmulateMidButtonTime = 75 EmulateTwoFingerMinZ = 282 EmulateTwoFingerMinW = 7 VertScrollDelta = 111 HorizScrollDelta = 111 VertEdgeScroll = 0 HorizEdgeScroll = 0 CornerCoasting = 0 VertTwoFingerScroll = 1 HorizTwoFingerScroll = 0 MinSpeed = 1 MaxSpeed = 1.75 AccelFactor = 0.0359131 TrackstickSpeed = 40 EdgeMotionMinZ = 30 EdgeMotionMaxZ = 160 EdgeMotionMinSpeed = 1 EdgeMotionMaxSpeed = 445 EdgeMotionUseAlways = 0 TouchpadOff = 0 LockedDrags = 0 LockedDragTimeout = 5000 RTCornerButton = 2 RBCornerButton = 3 LTCornerButton = 0 LBCornerButton = 0 TapButton1 = 1 TapButton2 = 3 TapButton3 = 0 ClickFinger1 = 1 ClickFinger2 = 1 ClickFinger3 = 0 CircularScrolling = 0 CircScrollDelta = 0.1 CircScrollTrigger = 0 CircularPad = 0 PalmDetect = 0 PalmMinWidth = 10 PalmMinZ = 200 CoastingSpeed = 20 CoastingFriction = 50 PressureMotionMinZ = 30 PressureMotionMaxZ = 160 PressureMotionMinFactor = 1 PressureMotionMaxFactor = 1 ResolutionDetect = 1 GrabEventDevice = 1 TapAndDragGesture = 1 AreaLeftEdge = 0 AreaRightEdge = 0 AreaTopEdge = 0 AreaBottomEdge = 0 HorizHysteresis = 27 VertHysteresis = 27 ClickPad = 0

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• run .profile function as cron job

  - by Don

  In the .profile file of the root user I have defined a function, e.g. function printDate() { date } I want to run this function every minute and append the output to cron.log. I tried adding the following crontab entry: * * * * * printDate > $HOME/cron.log 2>&1 But it doesn't work. The cron.log file gets created, but it's empty. I guess this is because the .profile isn't read by cron, so any functions/aliases defined therein are unavailable to it. So I tried changing the crontab entry to: * * * * * source $HOME/.profile;printDate >> $HOME/cron.log 2>&1 But this doesn't work either. It seems cron still doesn't have access to the printDate function because I see the following in cron.log /bin/sh: printDate: not found

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• True Excel Templates for BI Publisher

  - by Annemarie Provisero

  ADVISOR WEBCAST: True Excel Templates for BI Publisher PRODUCT FAMILY: EBS/ATG/BI Publisher July 12, 2011 at 7am PT, 8 am MT, 10 am ET This one-hour session is recommended for technical and functional users who want to learn how to code Excel formatted layouts for use with BI Publisher to generate binary Excel output. TOPICS WILL INCLUDE: Creating a simple template Formatting Dates Creating Functions A short, live demonstration (only if applicable) and question and answer period will be included. Oracle Advisor Webcasts are dedicated to building your awareness around our products and services. This session does not replace offerings from Oracle Global Support Services. Click here to register for this session ------------------------------------------------------------------------------------------------------------- The above webcast is a service of the E-Business Suite Communities in My Oracle Support. For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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• Can I use GPL software in a commercial application

  - by Petah

  I have 3 questions about the GPL here: If I use GPL software in my application, but don't modify or distribute it, do I have to release my application under the GPL? What if I modify some software that my application uses. Then do I have to release my application under the GPL, or can I just supply the modified software under the GPLs terms. And what if I use GPL software, but don't modify it, can I distribute it with my application? My case in point is, I have a PHP framework which I use the GeSHi library to highlight some output. Because GeSHi is GPL, does my framework have to be GPL? Can I modify GeSHi for particular use cases of my application if I supply the modifications back to the GeSHi maintainers? Can I redistribute my framework with GeSHi?

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