Search Results

Search found 25093 results on 1004 pages for 'console output'.

Page 715/1004 | < Previous Page | 711 712 713 714 715 716 717 718 719 720 721 722  | Next Page >

• asynchronous writing and reading of a file

  - by tazim

  hi, I have two processes. 1.) One processes is redirecting output of some unix command to a file on server side.the data is always appended to the file eg : find / > tmp.txt 2.)Another process is opening and reading the same file and storing it in a string and sending the entire string to the client Now, this things take simultaneously. I am using python. Any suggestion as in what can be possible ways to implement this scenario . Please explain with sample code . Thanks in advance . Tazim.

  Read the article

• How do you manage web navigation info in your application?

  - by Dave

  I’m building an application where different users will have different menu items available to them depending on what they’ve paid for. There will also be multiple levels to the menu hierarchy. What’s the best approach to this problem? I’m assuming I need a database table that represents the menu hierarchy, including the parent-child relationships of the nodes in the navigation as well as the sorting of the items. Then another table which I use to manage whether a user is authorized to access a particular item in that table. When I render the view, I’d reference the menus, and the access rights of the user to output the menu, and I’d also need a function to check that same authorization from each controller in case a user manually types in a URL of a controller they’re not supposed to have access to. Is this the right approach? Any suggestions for caching this to prevent the constant look-ups of this type of info? I’m open to any suggestions on how you may have approached this type of requirement.

  Read the article

• How can I compute the average cost for this solution of the element uniqueness problem?

  - by Alceu Costa

  In the book Introduction to the Design & Analysis of Algorithms, the following solution is proposed to the element uniqueness problem: ALGORITHM UniqueElements(A[0 .. n-1]) // Determines whether all the elements in a given array are distinct // Input: An array A[0 .. n-1] // Output: Returns "true" if all the elements in A are distinct // and false otherwise. for i := 0 to n - 2 do for j := i + 1 to n - 1 do if A[i] = A[j] return false return true How can I compute the average cost (i.e. number of comparisons for a given n) for this algorithm? What is a reasonable assumption about the input?

  Read the article

• Set Default DateTime Format c#

  - by Matthew Hood

  Is there a way of setting or overriding the default DateTime format for an entire application. I am writing an app in C# .Net MVC 1.0 and use alot of generics and reflection. Would be much simpler if I could override the default DateTime.ToString() format to be "dd-MMM-yyyy". I do not want this format to change when the site is run on a different machine. Edit - Just to clarify I mean specifically calling the ToString, not some other extension function, this is because of the reflection / generated code. Would be easier to just change the ToString output.

  Read the article

• Can log4net appenders be defined in their own XML files?

  - by ladenedge

  I want to define a handful of (ADO.NET) appenders in my library, but allow users of my library to configure the use of those appenders. Something like this seems to be what I want: XmlConfigurator.Configure(appenderStream1); XmlConfigurator.Configure(appenderStream2); XmlConfigurator.Configure(); But that doesn't seem work, in spite of the debug output containing messages like this: Configuration update mode [Merge]. What is the right way to do this? Or, is there an alternative to asking users to duplicate large chunks of XML configuration?

  Read the article

• How to get the Jquery row ID on single click

  - by kumar

  var value; $("#Grid1").click(function(e) { var row = jQuery(e.target).parent(); value= row.attr("id"); }); var onrowclick = function() { ("#Grid1").click($("#showgrid").load('/Names/Friends/satish/' + value)); }; i am trying to send the value on URL.. when I am giving like this I am not getting the output result... am I doing this correctly? is the problem that I am handling click event on same grid two times?

  Read the article

• issue occur while implementing tabs in css

  - by user3592205

  i was implementing tabbed feature using radio button hack,here is the tutorial from where i was learning. http://tympanus.net/codrops/2012/04/12/animated-content-tabs-with-css3/ and this is the final output http://tympanus.net/Tutorials/CSS3ContentTabs/ while implementing i am stuck at this, i suppose this issue occurs because content's opacity is set to 0 when radio button is checked or clearfix issue. here is what i got so far http://jsfiddle.net/parasrochiya/F8zva/ please help me out ..I hope you'll understand what i'm trying to implement. thanks in advance for your help.

  Read the article

• How can I disable Java garbage collector ?

  - by Nelson

  Hi, we have a PHP webapp that calls a java binary to produce a pdf report (with jasperreport), the java binary outpus pdf to standart output and exits, the php then send the pdf to browser. This java command lasts about 3 to 6 seconds, I think when it lasts 6 second it's because the GC kicks in, so I would like to disable it because anyway when the command exits all memory is returned.. I would like to know how to disable it for Java 1.4.2 and for Java 1.6.0 because we are currently testing both JVM to see which performs faster.. Thanks

  Read the article

• I need to pad IP addresses with Zeroes for each octet

  - by Felipe Alvarez

  Starting with a string of an unspecified length, I need to make it exactly 43 characters long (front-padded with zeroes). It is going to contain IP addresses and port numbers. Something like: ### BEFORE # Unfortunately includes ':' colon 66.35.205.123.80-137.30.123.78.52172: ### AFTER # Colon removed. # Digits padded to three (3) and five (5) # characters (for IP address and port numbers, respectively) 066.035.05.123.00080-137.030.123.078.52172 This is similar to the output produced by tcpflow. Programming in Bash. I can provide copy of script if required. If it's at all possible, it would be nice to use a bash built-in, for speed. Is printf suitable for this type of thing?

  Read the article

• How do I call a method when all threads (backgroundWorkers) are done with their jobs in .NET

  - by claws

  Hello, I'm using C# .NET. Its a GUI application. When user clicks a button work is assigned to 4 different background workers. Each take different amount of time and the end result is they populate some variables. I need to call a method which operates on these end results of each bgwoeker and gives the final output. How to accomplish this? Problem here is to be sure that all bgworkers are done with their job.

  Read the article

• How can I separate error_messages from two forms on one page?

  - by itkevin

  I have two forms in one view updating the User Profile. One Form is to Update my name etc. and one is to change my password. Profile Form: - form_for @user, :url => account_path do |f| = f.error_messages ...form fields here... Password Form: - form_for @user, :url => account_path do |pf| = pf.error_messages ...password fields here... As you can see they both point to the same update action in the users controller. If I type in a invalid password both error_messages show me the same error message. How can I output separate error messages per form?

  Read the article

• Check if NFS share is mounted in python script

  - by Fabian

  I wrote a python script that depends on a certain NFS share to be available. If the NFS share is not mounted it will happily copy the files to the local path where it should be mounted, but fail later when it tries to copy some files back that were created on the NFS server. I'd like to catch this error specifically so I can print a useful error message that will tell the users of this script what they have to do. My first idea would be to execute mount using subprocess and then check the output for this nfs share. But I'm wondering if there isn't a nicer and more robust method of doing it.

  Read the article

• Simple doubt related to strings in C (question in an interview)

  - by piemesons

  // The first example: char text[] = "henri"; char *p; p = text; *(p + 1) = 'E'; // Output = hEnri // Now If we want to remove the "e" ie hnri, we would go for????? *(p + 1)=????? Please dont say start copying the array. I am looking for the best solution. Its an interview question... EDIT I specially mentioned the question that i am not asking for the solution like start moving the element. I thought there must be some other good solution..

  Read the article

• ArrayBlockingQueue exceeds given capacity

  - by Wojciech Reszelewski

  I've written program solving bounded producer & consumer problem. While constructing ArrayBlockingQueue I defined capacity 100. I'm using methods take and put inside threads. And I've noticed that sometimes I see put 102 times with any take's between them. Why does it happen? Producer run method: public void run() { Object e = new Object(); while(true) { try { queue.put(e); } catch (InterruptedException w) { System.out.println("Oj, nie wyszlo, nie bij"); } System.out.println("Element added"); } } Consumer run method: public void run() { while(true) { try { queue.take(); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println("Element removed"); } } Part of uniq -c on file with output: 102 Element removed 102 Element added 102 Element removed 102 Element added 102 Element removed 102 Element added 102 Element removed 102 Element added 102 Element removed 102 Element added 102 Element removed 102 Element added 2 Element removed 2 Element added 102 Element removed 102 Element added

  Read the article

• Recursive CTE with alternating tables

  - by SOfanatic

  I've created a SQL fiddle here. Basically, I have 3 tables BaseTable, Files, and a LinkingTable. The Files table has 3 columns: PK, BaseTableId, RecursiveId (ChildId). What I want to do is find all the children given a BaseTableId (i.e., ParentId). The tricky part is that the way the children are found works like this: Take ParentId 1 and use that to look up a FileId in the Files table, then use that FileId to look for a ChildId in the LinkingTable, if that record exists then use the RecursiveId in the LinkingTable to look for the next FileId in the Files table and so on. This is my CTE so far: with CTE as ( select lt.FileId, lt.RecursiveId, 0 as [level], bt.BaseTableId from BaseTable bt join Files f on bt.BaseTableId = f.BaseTableId join LinkingTable lt on f.FileId = lt.FileId where bt.BaseTableId = @Id UNION ALL select rlt.FileId, rlt.RecursiveId, [level] + 1 as [level], CTE.BaseTableId from CTE --??? and this is where I get lost ... ) A correct output for BaseTableId = 1, should be: FileId|RecursiveId|level|BaseTableId 1 1 0 1 3 2 1 1 4 3 2 1

  Read the article

• Is it possible to open a pipe-based filehandle which prints to a variable in perl?

  - by blackkettle

  Hi, I know I can do this, ------ open(F,"",\$var); print F "something cool"; close(F); print $var; ------ or this, open(F, "| ./prog1 | ./prog2 tmp.file"); print F "something cool"; close(F); but is it possible to combine these? The semantics of what I'd like to do should be clear from the following, open(F,"|./prog1 | ./prog2", \$var); print F "something cool"; close(F); print $var; however the above clearly won't work. A few minutes of experimenting and googling seems to indicate that this is not possible, but I'd like to know if I'm stuck with using the `` to capture the output.

  Read the article

• Grep for multiple patterns over multiple files

  - by prelic

  I've been googling around, and I can't find the answer I'm looking for. Say I have a file, text1.txt, in directory mydir whose contents are: one two and another called text2.txt, also in mydir, whose contents are: two three four I'm trying to get a list of files (for a given directory) which contain all (not any) patterns I search for. In the example I provided, I'm looking for output somewhere along the lines of: ./text1.txt or ./text1.txt:one ./text1.txt:two The only things I've been able to find are concerning matching any patterns in a file, or matching multiple patterns in a single file (which I tried extending to a whole directory, but received grep usage errors). Any help is much appreciated. Edit-Things I've tried grep "pattern1" < ./* | grep "pattern2" ./* "ambiguous redirect" grep 'pattern1'|'pattern2' ./* returns files that match either pattern

  Read the article

• HTML, jQuery Suggestion for a List

  - by AnApprentice

  Hello, I'm creating an app that will have a list of messages, each message can be either read or unread. Think GMAIL (though I'm not trying to rebuild that)... My question is when I output all these messages, I need to list if the message is read or unread, I also need to provide the ability to change the message status, from read to unread. That being said, how do you suggest I stored this? A checkbox, a hidden input value? Any thoughts? Thanks

  Read the article

• C++ cin returns 0 for integer no matter what the user inputs

  - by kevin dappah

  No matter the cin it continues to to output 0 for score. Why is that? I tried returning the "return 0;" but still no go :/ #include "stdafx.h" #include <iostream> using namespace std; // Variables int enemiesKilled; const int KILLS = 150; int score = enemiesKilled * KILLS; int main() { cout << "How many enemies did you kill?" << endl; cin >> enemiesKilled; cout << "Your score: " << score << endl; return 0; }

  Read the article

• Fill in missing values in a SELECT statement

  - by benjamin button

  If i have a table with two fields.customer id and order. let's say i have in total order ID 1,2,3,4 all the customer can have all the four orders.like below 1234 1 1234 2 1234 3 1234 4 3245 3 3245 4 5436 2 5436 4 you can see above that 3245 customer doesnt have order id 1 and 2. how could i print in the query output like 3245 1 3245 2 5436 1 5436 3 EDIT: i dont have order table but i have list of order's like we can hard code it in the query(1,2,3,4) i dont have an orders table.

  Read the article

• Any way to avoid a filesort when order by is different to where clause?

  - by Julian

  I have an incredibly simple query (table type InnoDb) and EXPLAIN says that MySQL must do an extra pass to find out how to retrieve the rows in sorted order. SELECT * FROM `comments` WHERE (commentable_id = 1976) ORDER BY created_at desc LIMIT 0, 5 exact explain output: table select_type type extra possible_keys key key length ref rows comments simple ref using where; using filesort common_lookups common_lookups 5 const 89 commentable_id is indexed. Comments has nothing trick in it, just a content field. The manual suggests that if the order by is different to the where, there is no way filesort can be avoided. http://dev.mysql.com/doc/refman/5.0/en/order-by-optimization.html I also tried order by id as well as it's equivalent but makes no difference, even if I add id as an index (which I understand is not required as id is indexed implicitly in MySQL). thanks in advance for any ideas!

  Read the article

• How to update a library in my application

  - by andho

  I have used a library like ZendFramework in my project which I have put in Subversion. Now I want to update the version that I have put in Subversion. What's the best way to do this? Copying, taking a svn diff and patching the working copy or just copying the new files over the old files? I have tried svn diff with svn diff but this doesn't output anything. Normal diff outputs some stuff but it also considers the .svn directories.

  Read the article

• NULL pointer dereference in C

  - by user554125

  hey ive got this piece of code. It dereferences a null pointer here. But then there is an and with unsigned int. I really dont understand the whole part. Can someone explain the output.?? struct hi { long a; int b; long c; }; int main() { struct hi ob={3,4,5}; struct hi *ptr=&ob; int num= (unsigned int) & (((struct hi *)0)->b); printf("%d",num); printf("%d",*(int *)((char *)ptr + (unsigned int) & (((struct hi *)0)->b))); } The o/p i get is 44 .But how does it work?

  Read the article

• Why does ElapsedTicks X 10 000 not equal ElapsedMilliseconds for .Net's Stopwatch?

  - by uriDium

  I am trying to performance test some code. I am using a stopwatch. When I output the number of milliseconds it always tells me 0 so I thought that I would try the number of ticks. I am seeing that the number of ticks is about 20 000 to 30 000. Looking at the MSDN at TimeSpan.TicksPerMillisecond it says that is 10 000 ticks per millisecond. In that case why are the elapsed milliseconds on my stopwatch not appearing as 2 or 3? What am I missing? I have even outputed the result on the same line. This is what I get. Time taken: 26856 ticks, 0 ms And it is constant.

  Read the article

• What scripting language would you use to put text over a generated image ?

  - by Younes

  I got this question from my cousin: "What will be the best way to create a similar working website just like: http://www.plakletters.nl". I have looked into the website and think that to start of with i'm gonna help my cousin write a script that loads all fonts installed on the system into a dropdownlist. This dropdownlist will post a font value back to the page and will create images with the input of a user that comes from a textbox. This images will have to be created server side, and I also want to give the users the ability (in the future) to lay their own text over an uploaded image, to see what the result will look like on their own image. I found some information about how to create images using php, I don't know if php can output a list of installed fonts from the system it's running on. What scripting language would you use to get this job done? Keep in mind i would just like to start with outputting some images based on user input using a scripting language.

  Read the article

< Previous Page | 711 712 713 714 715 716 717 718 719 720 721 722  | Next Page >