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• How to use git to download a particular tag?

  - by Jack BeNimble

  I'm trying to figure out how do download a particular tag of a git repository - it's one version behind the current version. I saw there was a tag for the previous version on the git web page, with object name of something long hex number. But the version name is "Tagged release 1.1.5" according the site. I tried a command like this (with names changed): git clone http://git.abc.net/git/abc.git my_abc And I did get something - a directory, a bunch of subdirectories, etc. If it's the whole repository, how do I get at the version I'm seeking? If not, how do I download that particular version?

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• A 3-D grid of regularly spaced points

  - by Jack

  I want to create a list containing the 3-D coords of a grid of regularly spaced points, each as a 3-element tuple. I'm looking for advice on the most efficient way to do this. In C++ for instance, I simply loop over three nested loops, one for each coordinate. In Matlab, I would probably use the meshgrid function (which would do it in one command). I've read about meshgrid and mgrid in Python, and I've also read that using numpy's broadcasting rules is more efficient. It seems to me that using the zip function in combination with the numpy broadcast rules might be the most efficient way, but zip doesn't seem to be overloaded in numpy.

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• git is very very slow

  - by dorelal

  My project is six months old and git is very very slow. We track around 30 files which are of size 5 MB to 50 MB. Those are binary files and we keep them in git. I believe those files are making git slow. Is there a way to kill all files of size 5MB from the repository. I know I would lose all of these files and that is okay with me. Ideally I would like a command that would list all the big files ( 5MB) . I can see the list and then I say okay go ahead and delete those files and make git faster.

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• SQLite issues, escaping certain characters...

  - by CODe

  I'm working on my first database application. It is a WinForms application written in C# using a SQLite database. I've come across some problems, when a apostrophe is used, my SQLite query fails. Here is the structure of my queries. string SQL = "UPDATE SUBCONTRACTOR SET JobSite = NULL WHERE JobSite = '" + jobSite + "'"; For instance, if an apostrophe is used in the jobSite var, it offsets the other apostrophes in the command, and fails. So my questions are: 1. How do I escape characters like the apostrophe and semicolon in the above query example? 2. What characters do I need to escape? I know I should escape the apostrophe, what else is dangerous? Thanks for your help!

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• How can I login linux using C or C++

  - by jnblue

  I need to programmely switch the current user to another,then the followed code should be executed in the environment(such as path,authority..) of another user. I've find the 'chroot()','setuid()' may be associated with my case, but these functions need the root authority, I don't have root authority, but I have the password of the second user. what should I do? I have tried shell "su - " can switch current user, can this command help me in my C++ code? Don't laugh at me if my question is very stupid, I'm a true freshman on linux. :) Thanks!

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• Creating CFArray from MySQL Result Array

  - by Andrew

  Is there an easy way to dump an array returned from mysql_fetch_row into a CFArray? (part of the PHP implementation of CFPropertyList) I'm bummed by the lack of documentation on CFPropertyList for PHP. Iterating through each item in the array seems inefficient. I'm open to using a different mysql_fetch_... command. I'd like to just say: $NewArray = new CFArray( $ResultArray ) But that deosn't seem to work. This is my current code: $plist = new CFPropertyList(); $ResultRow = mysqli_fetch_row( $result ); $plist-add( $TableRow = new CFArray() ); foreach ( $ResultRow as $Item ){ $TableRow-add( new CFString( $Item ) ); }

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• Do not want Form to display over other application windows

  - by Cat

  I am displaying a Form from one process by passing the Show method a window handle from another process. I only want this new Form to display above the passed Form, like a MessageBox. However, this newly launched Form appears above other application windows, despite: Setting Process.WindowStyle.Hidden to the Form-displaying process Overriding the ShowWithoutActivation and CreateParams properties of the Form. Making sure Form.TopMost is not true I have checked that the window handle is valid from the second process. Focus is not stolen, however. Process A: Pass (Form) window handle to a new Process B via the command line Process B: Display a new Form using Form.Show(anotherProcessWindowHandle)

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• What do I put in my Ruby (JRuby) code to break into the debugger?

  - by Daryl Spitzer

  I'm familiarizing myself with some JRuby code, and I'd like to be able to place a breakpoint in the code and run (as usual) from the command-line, having it break into the debugger when it gets to that point. Is there something I can put in my code to force JRuby to break into the debugger? I've tried running jruby -r debug foo.rb (instead of the usual jruby foo.rb), and then setting a breakpoint with b bar.py:98, and then continuing. But the debugger stops every time there's an exception, and there seem to be a lot of them before it gets to the line of code I'm interested in. I'd like to be able to put the "break-into-debugger" line(s) in my code and run jruby foo.rb and have the first place the debugger stops be at that line. (i.e. I'm looking for the Ruby/JRuby equivalent of import pdb;pdb.set_trace() in Python.)

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• Decoding MIME (HTML+Attachments)

  - by MH

  I'm planning to write an application that should handle incoming mails. Basically it will act more like a ticketing system than a webmail, so I'm only interested in receiving emails, and not sending them. I have made a simple prototype that downloads mails and displays the text with downloadable attachments in a web page, but handling mails from Outlook and others is more complicated. I have looked at some of the open source ticketing systems out there, but most of the code is tied to the system and is hard to separate. Is there a library that understands "rich" mail and makes this job simpler? Preferably in Python, Java, Ruby or Perl. I'm also open to suggestions for any command line mail clients that can be used for this, since the system will not receive large amounts of mail and can afford to launch external processes.

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• Rails - Sending XML or JSON

  - by timWhit

  I'm new to Rails and trying to send a request to Chargify to cancel a subscription. Their API says I need to send the method DELETE to a xml URL. This isn't a Chargify based question but rather... how would I have a user click a button that then generates this request and sends it within my Rails app? You can view this url to see what I"m trying to do - http://docs.chargify.com/api-subscriptions#cancel. Also it's working fine when I run a command-line test so I know my code works, just now sure how to put it into my Rails app (view/controller). Thanks

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• bash screen title usage (screen -t "something")

  - by atrioom

  I was working with screen lately and wanted to use the -t option for it. What's the point of the-t option if the title of the screen does not show anywhere like when using -list or within the screen when it's attached? There is a command CTRL-A double-quote(") to see all active screens, and then it shows the title, but that does not really do the job, because I have to have the screen attached already. I want to read out the title BEFORE attaching any screens, to attach the right one in the first place. Is there a method to use -t in a convenient way? Edit: There is one method: "ctrl-a "" and then "ctrl-a {numberofscreen}". I guess that's the best way to use the screen titles?

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• find string from the file in somewhere

  - by lightmanhk

  I want to find a string from some file in subdirectory. Like we are in bundle/. and in bundle/ there are multiple subdirectories and multiple txt files I want to do something like find . -type f -exec grep "\<F8\>" {} \; want to get the file where it contain string < F8 this command does work, find the string, but never return filename I hope anyone can give me a better solution to this, like display filename along with the line containing that string

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• How do I run compiled java classes with GPU libraries (Jogamp JOCL)?

  - by jam383

  Does anyone know how to run the java code from the command line with dependency on GPU libraries in this case Jogamps JOCL. I have compiled a test program HelloJOCL.java but I get an error during run time. I tried javac -classpath "./lib/jocl.jar:./lib/jocl-natives-macosx-universal.jar:./lib/jocl-natives-linux-i586.jar:./lib/jocl-natives-linux-amd64.jar:./lib/gluegen-rt.jar:./lib/gluegen-rt-natives-linux-amd64.jar:./lib/gluegen-rt-natives-macosx-universal.jar:./lib/gluegen-rt-natives-linux-i586.jar" ./HelloJOCL.java java -classpath "./lib/jocl.jar:./lib/jocl-natives-macosx-universal.jar:./lib/jocl-natives-linux-i586.jar:./lib/jocl-natives-linux-amd64.jar:./lib/gluegen-rt.jar:./lib/gluegen-rt-natives-linux-amd64.jar:./lib/gluegen-rt-natives-macosx-universal.jar:./lib/gluegen-rt-natives-linux-i586.jar:." HelloJOCL but get this error Exception in thread "main" java.lang.NoClassDefFoundError: com/jogamp/opencl/CLContext at java.lang.Class.getDeclaredMethods0(Native Method)

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• Subversion repo upgrade makes repository unusable.

  - by Mike C.

  Hi, I recently upgraded my subversion server from 1.4.6 to 1.6.11. The repos all seem to work correctly after this. I then try to upgrade a repo by issuing the svnadmin update command, and it produces no errors and says the update is complete. However, I am unable to open the repository after this. I get the following error when trying to open the repo: Could not open the requested SVN filesystem. I am using Apache, not SVNServe. Any help would be appreciated!

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• Is there a Ruby on Rails framework like equivalent for .NET development?

  - by wgpubs

  Answers like ASP.NET MVC or Entity Framework really aren't acceptable as they address just one aspect of the problem domain. I'm looking for a framework ... a REAL framework that gives me the same features out of the box that Rails does. As such it should include at minimum: MVC for presentation ORM Ability to provide simple configuration for whatever environment (dev, QA, Production, etc...) Migration like functionality Ability to generate code in all layers (similar to scaffolding like behavior, etc...) Project template so as to create similar functionality as the "rails my_app" command. Thanks.

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• What does Heroku mean by app[web.1]?

  - by Colonel Panic

  What does Heroku mean by app[web.1] and by <main>:48? I have a crash that happens only on Heroku and not on my computer, I'm trying to identify the precise line causing the crash. These are the logs heroku[web.1]:?[0m Starting process with command `bundle exec rackup config.ru -s thin -p 40103` app[web.1]:?[0m <main>:48:in `method_missing': wrong number of arguments (1 for 2) (ArgumentError) app[web.1]:?[0m from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:265:in `start' ... heroku[web.1]:?[0m Process exited with status 1 heroku[web.1]:?[0m State changed from starting to crashed

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• how do i detect \r\n in a u_char type of buffer?

  - by aDi Adam

  i am trying to construct http content from packet sniffing in C. right now i am able to save all the packets in a file but i want to get rid of the headers in the first packet. they are also being saved as per they are a part of tcp payload. the actual body after the header starts after double "crlf" or \r\n\r\n in http response. how do i detect \r\n so that i can only save the following part of the buffer in the file. the buffer is u_char type. i cant figure out the command or the part i looked on google and other places but i mostly find c# commands, nothing in C.

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• MySQL: How to separate a name field in one table into firstname / lastname in two separate tables?

  - by Eileen

  I have a drupal database where the node table is full of profiles. The field node.title is "Firstname Lastname". I want to separate the names so that node.title = "Firstname", and over in another table entirely, content_type_profile.field_lastname_value = "Lastname". The entries in the two tables can be joined on the field nid. I'd love to run a SQL command to do this, and I am fine with taking the naive approach that the first word is the first name, and everything else in the field is last name -- it will mean a few manual corrections down the line, but that's much better than doing it all by hand in the first place. (I read this question and surely the answer lies in there but I am not that SQL-savvy and am not sure how to make it work for my database.) Thanks!

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• Tomcat SSL Configuration

  - by bdares

  I received a SSL cert to use for a Tomcat 6.0 server, ready to use. I configured Tomcat to use it with the following in server.xml: <Connector port="8443" maxThreads="200" scheme="https" secure="true" SSLEnabled="true" keystoreFile="C:\Tomcat 6.0\ssl\cert" keystorePass="*****" clientAuth="false" sslProtocol="TLS"/> I started Tomcat using the command prompt so I could see any error message as they happened. There were none. The results for accessing different URLS: http://localhost - normal page loads fine https://localhost - browser claims page cannot be found https://localhost:8443 - page cannot be found http://localhost:8443 - offers a certificate, after accepted redirects to https://localhost (I suspect the https:// urls initially offer the certificate which is automatically accepted by the browser, as it was issued by Verisign) How to fix? Edit: I've also tried port="443". Same result.

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• Usage scenario for svn branches

  - by Paul Knopf

  I have a product that I distribute to my clients. Each client needs some UI customization. I want each client to be able to get updated with new version easily. Can I create a project in svn that serves as a "base project", and then create branches for each client? With that said, will I then be able to commit changes in a branch to the branch, with the option of pushing that change to the core? Can I also perform and "update" command in a branch that will only update changes to the core?

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• If statements Evaluations

  - by user2464795

  Using the code below I get this result even though I put in a number that is greater than 18. run: How old are you? 21 You have not reached the age of Majority yet! BUILD SUCCESSFUL (total time: 3 seconds) I am new to java and trying to self learn can anybody help? import java.util.Scanner; public class Chapter8 { /** * @param args the command line arguments */ public static void main(String[] args) { Scanner reader = new Scanner (System.in); // TODO code application logic here //Excercise 15 System.out.print("How old are you? "); int x = Integer.parseInt(reader.nextLine()); if (x > 18){ System.out.println("You have not reached the age of Majority yet!"); }else { System.out.println("You have reached the age of Majority!"); }

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• Jquery plugin for getting changes in textarea and sending them to server

  - by user763410

  I am getting a file "abc.txt" from server and dispaying it in a text area for editing. <div id="filecontents"> <textarea> CONTENTS OF FILE LARGER THAN 10KB </textarea> </div> The contents of the file are potentially large. The user will edit the textarea and add/delete text from any part(not just the end). I want to send ONLY the changes to the server for patching. How do I accomplish this?. Is there a javascript version of the popular linux command(diff). John Resig's diff code may not work as, for me, it will involve additional parsing on server side. Thanks!

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• Best way to make a script to SSH?

  - by Paul

  My university has quite a lot files (like past papers etc) which I need to be on the uni network to access them. I ssh, using port forwarding, into the network and set my browser (Firefox) to go through that port. I know it would be quite easy to write something in most languages that would enter the command into a terminal, but which language/method could I use to make this happen? I expect some sort of scripting language could but I really know nothing about them, but I'd be willing to learn one just to have a little fun with this. I'm using a cygwin terminal on Windows 7, if that will make a difference. To neaten up my question: Which language would be best to acheive the above effect? Not necessarily the best, just possible and relatively simple to learn. I used the word best so I suppose I'll put a subjective tag.

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• JQuery .each() backwards

  - by Jack Mills

  Hi, I'm using JQuery to select some elements on a page and then move them around in the DOM. The problem I'm having is I need to select all the elements in the reverse order that JQuery naturally wants to select them. For example: <ul> <li>Item 1</li> <li>Item 2</li> <li>Item 3</li> <li>Item 4</li> <li>Item 5</li> </ul> I want to select all the li items and use the .each() command on them but I want to start with Item 5, then Item 4 etc. Is this possible? Thanks

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• I saved PuTTY password when logging in, how to unsave it?

  - by xiaolaidd

  I mistakenly saved password first time logging to the server through PuTTY. How can I unsave the password? I don't want the password to be saved, instead I want to type the password everytime when I want to log in. Sorry that the question maybe confusing. The problem is I mistakenly click "yes" when PuTTY asked me to save the password or not. When logging in, it will prompt running "my username" and "my password". Apparently it will complain command not found. Just want to know where PuTTY stores my password so that I can delete it. Thanks,

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