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• What does the line '!/bin/sh -e' do?

  - by Camran

  In the beginning of a file on my server (linux), which is located in the /etc/init.d/ folder I have this line: !/bin/sh -e What does it mean, because every time I execute the rest of the script it works fine except for an error which shows: !/bin/sh not found Any ideas?

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• How do I see **all** the currently defined variables in PHP?

  - by Itay Moav

  I need a way to see all the defined variables of the current PHP instance. By currently defined I mean all the globals, all the local to THIS scope and all the locals to other scopes. Is there something built in?

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• getting the error" No provisioned iPhone OS device is connected" for iphone

  - by uttam

  what this error mean, when i am installing the app on device,i am getting this error. how can i solve this error.

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• How can I programmatically change my windows domain password?

  - by Deestan

  In other words, how to change my password without going through the "CTRL-ALT-DEL - Change Password" interface. By programmatically I mean via a command-line tool, C# via a .NET library, COM-invocation via Python, ... whatever doesn't involve any manual steps, really. The "NET USER" command is ineligible, as it requires me to run with domain administrator privileges.

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• Is there something better / faster / cooler than Open GL?

  - by mystify

  Do the really really really really really really really big games (I mean the REALLY big ones, that cost billions to develop) also use Open GL? Or are there some proprietary technologies out there, which can scare Open GL's pants off?

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• How to implement Registration module in android applications ?

  - by serenity

  Hello Guys, I want to implement registration module in my android application. Can anyone please let me know the procedure. I mean, how can I use HttpRequestHandlerRegistry, SQLite connectivity etc Thanks in advance. Regards, serenity.

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• Visual Studio & RAD support for coding directly in IL?

  - by jdk

  For the longest time I've been curious to code in Intermediate Language just as an academic endeavour and to gain a better understanding of what's "happening under the hood". Does anybody provide Visual Studio support for *IL in the form of: project templates, IntelliSense integration, and those kind of RAD features? Edits: I don't mean restricted to out of the box support. For example, I can download Visual Studio extensions to support Python, COBOL, etc. Want the same for *IL. There is a stand-alone Intermediate Assembler tool.

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• What is the rationale for difference between -> and . in c++ ?

  - by Good Person

  I know the difference between the member operator (.) and the member by pointer operator (-). Why did the c++ designers create a different operator for this access? Why can't the compiler figure it out on its own? If you always used a . does any case exist where it is ambiguous whether you mean a member or a member by pointer?

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• .Net: how can I have a combobox with multitple fields of its data source as Displaymember?

  - by odiseh

  hi How can I have a combobox with multiple fields of its data source as its display member without adding additional columns to its data source? I mean I wanna to have a combobox with displaymember like "ID" + "-" "Name" . 1 - Black 2 - White 3 - Red I DO NOT want to add additional column to its data source. Thank you

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• how use in it in main project?

  - by davit-datuashvili

  I have the following interface: public interface MyFunctor { int myFunction(int x); } And I created a class which implements this interface : public class Myfunction1 implements MyFunctor { } how use in main project? i have corrected mistake now i need how run it in main project? i mean in public static void main(String[]args)?

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• how i can make a sort system depend on Character

  - by moustafa

  i mean i have songs table ok?? i want to make some things like that a | b | c | d click on a select from the database the songs that start by a Character how i can do that by the mysql???

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• C# Dispose() -clarification

  - by nettguy

  When i call object.Dispose(); Will CLR immediately destroy the object from memory or mark the object for removal in it's next cycle?. We are calling GC.SuppressFinalize() immediately after Dispose(),Does it mean ,"Don't collect the object again for dispose,because it is already submitted to displose". Actually which generation is responsible for destruction ,i guess generation 2.

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• What are the differences and similarities between a interface class and an abstract class?

  - by Starx

  What are the differences and similarities between an interface class and an abstract class? I mean when to use interface and when to use abstract class? On what conditions are one appropriate to use over another.

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• How to prevent from misclose browsers

  - by Nasser Hajloo

  I have a Web Application and I want to get a confirmation from users when they are closing the application no matter what. I mean I'm looking for a way to display a message touser whenever user try to close the application.

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• Question about Null vs zero

  - by Mike

  I have this function: void ToUpper(char * S) { while (*S!=0) { *S=(*S >= 'a' && *S <= 'z')?(*S-'a'+'A'):*S; S++; } } What does it mean for *S != 0, should it be null instead?

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• What is the rationale for difference between -> and . in c/c++ ?

  - by Good Person

  I know the difference between the member operator (.) and the member by pointer operator (-). Why did the C designers create a different operator for this access? Why can't the compiler figure it out on its own? If you always used a . does any case exist where it is ambiguous whether you mean a member or a member by pointer?

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• safely reading directory contents

  - by Jack

  Is it safe to read directory entries via readdir() or scandir() while files are being created/deleted in this directory? Should I prefer one over the other? When I say "safe" I mean entries returned by these functions are valid and can be operated without crushing the program. Thanks.

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• Data structure in C# (3.0) that represents a CUBE

  - by Thinking

  Can you please give me some idea about how to design a data structure in C# (3.0) which will give a representation of 3D data structure. I mean to say something similar to cube. Like stock data to be viewed based on time , location . Kindly give a simple working example or even a link will do. It's urgent. Any example will be appreciated. Thanks in advance

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• Controlling form elements from a different thread in Windows Mobile

  - by d1k_is

  Trying to get a thread to change form controls in Windows Mobile. Throws an unsupported exception. Does this mean it cant be done at all? If not, how do I go about this? Forms are created in the Parent/Main thread then a thread is created to do some work in the background but I want to make it so the Background thread can update the form to show its completed...

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• PHP: array('function' => 'theme_select_as_checkboxes')

  - by Patrick

  hi, what does this construct mean in PHP ? It is storing a variable called "function" with his String value in an array ? array('function' => 'theme_select_as_checkboxes') thanks

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• Increment and Decrement operators

  - by viswanathan

  How are the below valid and invalid as shown and what do they mean. When would such a situation arise to write this piece of code. ++x = 5; // legal --x = 5; // legal x++ = 5; // illegal x-- = 5; // illegal

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• Dependency Properties

  - by developer

  Hi All, Can anybody explain me what a dependency property is in WPF and what is its use. I know there are a lot of tutorials on google for it, but they teach how to create a dependency property. I am confused as to where I would use it. I mean will I use it in XAML? If anybody could explain me in simple terms, that would be great.

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• this parameter modifier in C#?

  - by Ivan

  I'm curious about this code snippet: public static class XNAExtensions { /// <summary> /// Write a Point /// </summary> public static void Write(this NetOutgoingMessage message, Point value) { message.Write(value.X); message.Write(value.Y); } // ... }; What does the this keyword mean next to the parameter type? I can't seem to find any information about it anywhere, even in the C# specification.

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• Why are interfaces unusable in PHP?

  - by streetparade

  I mean an interface definition without defining the return type makes it unusable? This makes more Clear Interface run { public function getInteger(); } class MyString implements run { public function myNumber() { } public function getInteger() { return "Not a number"; } } In Java every Interface has a return type like Integer,String,Void I know that PHP is unfortunately a loosly typed Language but isnt there a Solution for that Problem? Is it Possible to defining a Interface with a Return type like Integer?

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• Rails: it's a good ideia to store the view in a global var?

  - by Totty

  Im thinking of storing the view, what i mean by view is like this: app/views/profiles/index.html.haml into this i would do $view = self then in other parts of my app i would use and edit the $view var. it might get troubles?

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