As [noted][4] by *Mattias Nordqvist* in the comments below, you can also select the radio button option **&quot;Run whether user is logged on or not&quot;**. When saving the task, you will be prompted once for the user password. *bambams* [noted][5] that this wouldn&#39;t grant System permissions to the process, and also seems to hide the command window.

-----

It&#39;s not an obvious solution, but to make a Scheduled Task run in the background, change the **User** running the task to &quot;**SYSTEM**&quot;, and nothing will appear on your screen.

![enter image description here][1]

![enter image description here][2]

![enter image description here][3]


  [1]: http://i.stack.imgur.com/ETa33.png
  [2]: http://i.stack.imgur.com/2DZrl.png
  [3]: http://i.stack.imgur.com/BYomh.png
  [4]: https://stackoverflow.com/questions/6568736/how-do-i-set-a-windows-scheduled-task-to-run-in-the-background/6568823?noredirect=1#comment34741284_6568823
  [5]: https://stackoverflow.com/questions/6568736/how-do-i-set-a-windows-scheduled-task-to-run-in-the-background/6568823?noredirect=1#comment88942955_6568823

Assuming the application you are attempting to run in the background is CLI based, you can try calling the scheduled jobs using [Hidden Start][1] 

Also see: http://www.howtogeek.com/howto/windows/hide-flashing-command-line-and-batch-file-windows-on-startup/


  [1]: http://www.ntwind.com/software/utilities/hstart.html

I need help regarding working on fragment inside fragment, actually I
am facing a problem on pressing back button. Application Main screen
has buttons and pressing on each button view replace with new
fragment(and that fragment contain inside another fragment),
dynamically adding/replacing fragment is working fine, by pressing
button1 fragment replaced, same happens when pressing button, but if
I press the button again, got an exception:

    &quot;Duplicate id 0x7f05000a, tag null, or parent id 0x7f050009 with
    another fragment for com........ fragmentname&quot;

 means fragment or inner fragments are already added and I am trying
to add them again, anybody has idea how to work with fragment inside
fragment and moving back and forth without any problem, thanks for the
support.

MainActivity, where fragments are dynamical added and
replaced.

```java
public class FragmentInsideFragmentTestActivity extends Activity {

    private Button button1;
    private Button button2;
    private Button button3;
    private Button button4;


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        button1 =(Button) this.findViewById(R.id.button1);
        button1.setOnClickListener(new View.OnClickListener() {
           public void onClick(View view) {
               onButtonClick(view);
            }
        });

        button2 =(Button) this.findViewById(R.id.button2);
        button2.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                onButtonClick(view);
            }
        });

        button3 =(Button) this.findViewById(R.id.button3);
        button3.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
               onButtonClick(view);
            }
        });

        button4 =(Button) this.findViewById(R.id.button4);
        button4.setOnClickListener(new View.OnClickListener() {
           public void onClick(View view) {
               onButtonClick(view);
           }
        });
    }

    public void onButtonClick(View v) {
        Fragment fg;

        switch (v.getId()) {
           case R.id.button1:
                   fg=FirstFragment.newInstance();
                   replaceFragment(fg);
                   break;
           case R.id.button2:
                   fg=SecondFragment.newInstance();
                   replaceFragment(fg);
                   break;
           case R.id.button3:
                   fg=FirstFragment.newInstance();
                   replaceFragment(fg);
                   break;
           case R.id.button4:
                   fg=SecondFragment.newInstance();
                   replaceFragment(fg);
                   break;
        }
    }

    private void replaceFragment(Fragment newFragment) {
       FragmentTransaction trasection = getFragmentManager().beginTransaction();

        if(!newFragment.isAdded()) {
            try {
                //FragmentTransaction trasection =
                getFragmentManager().beginTransaction();
                trasection.replace(R.id.linearLayout2, newFragment);
                trasection.addToBackStack(null);
                trasection.commit();
            } catch (Exception e) {
                // TODO: handle exception
                // AppConstants.printLog(e.getMessage());
            } else {
                trasection.show(newFragment);
            }
        }
    }
```

Here is Layout: main.xml

```xml
&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
&lt;LinearLayout
    xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
    android:layout_width=&quot;fill_parent&quot;
    android:layout_height=&quot;fill_parent&quot;
    android:orientation=&quot;vertical&quot;&gt;

    &lt;LinearLayout
        android:id=&quot;@+id/linearLayout1&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;wrap_content&quot;
        android:orientation=&quot;horizontal&quot;&gt;

        &lt;Button
            android:id=&quot;@+id/button1&quot;
            android:layout_width=&quot;wrap_content&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:text=&quot;Button1&quot; /&gt;

        &lt;Button
            android:id=&quot;@+id/button2&quot;
            android:text=&quot;Button2&quot;
            android:layout_width=&quot;wrap_content&quot;
            android:layout_height=&quot;wrap_content&quot; /&gt;

        &lt;Button
            android:id=&quot;@+id/button3&quot;
            android:text=&quot;Button3&quot;
            android:layout_width=&quot;wrap_content&quot;
            android:layout_height=&quot;wrap_content&quot; /&gt;

        &lt;Button
            android:id=&quot;@+id/button4&quot;
            android:text=&quot;Button4&quot;
            android:layout_width=&quot;wrap_content&quot;
            android:layout_height=&quot;wrap_content&quot; /&gt;
    &lt;/LinearLayout&gt;

    &lt;LinearLayout
        android:id=&quot;@+id/linearLayout2&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;wrap_content&quot;
        android:orientation=&quot;horizontal&quot; /&gt;
&lt;/LinearLayout&gt;
```

Hope I tried to clear my problem.

Fragment Inside Fragment

Let&#39;s say we have a statement that produces `integer(0)`, e.g.

     a &lt;- which(1:3 == 5)

What is the safest way of catching this?

How to catch integer(0)?

Does anyone know how to set a scheduled task to run in background using Windows Task Scheduler?&lt;br&gt;
There doesn&#39;t seem to be any option to do this.

How do I set a Windows scheduled task to run in the background?

<p>Does anyone know how to set a scheduled task to run in background using Windows Task Scheduler?<br>
There doesn't seem to be any option to do this.</p>


I made a bat file like:
&lt;pre&gt;mvn clean;
mvn package;&lt;/pre&gt;
but it doesn&#39;t work, only the first command is executed.

can someone help me?

How to execute more than one maven command in bat file?

We have a web app that exports CSV files containing foreign characters with UTF-8, no BOM. Both Windows and Mac users get garbage characters in Excel. I tried converting to UTF-8 with BOM; Excel/Win is fine with it, Excel/Mac shows gibberish. I&#39;m using Excel 2003/Win, Excel 2011/Mac.
Here&#39;s all the encodings I tried:

    
    Encoding  BOM      Win                            Mac
    --------  ---      ----------------------------   ------------
    utf-8     --       scrambled                      scrambled
    utf-8     BOM      WORKS                          scrambled
    utf-16    --       file not recognized            file not recognized
    utf-16    BOM      file not recognized            Chinese gibberish
    utf-16LE  --       file not recognized            file not recognized
    utf-16LE  BOM      characters OK,                 same as Win
                       row data all in first field

The best one is UTF-16LE with BOM, but the CSV is not recognized as such. The field separator is comma, but semicolon doesn&#39;t change things.

**Is there any encoding that works in both worlds?**

Which encoding opens CSV files correctly with Excel on both Mac and Windows?

I am using Windows, and I get the error:

&lt;!-- language: lang-py --&gt;

    ImportError: No module named urllib2

I think [this][1] is the solution for Linux. But how to set this in Windows?

I am using Python 3.2 and I am not able see `urllib2` there in the LiB folder.


  [1]: https://stackoverflow.com/questions/2532321/python-importerror-no-module-named-urllib

Python 3.2 Unable to import urllib2 (ImportError: No module named urllib2)

I was browsing through the sources of a (prefer not to name) GUI Toolkit which wrapped up the Windows API when I found the following function definition in the window class:

     virtual LRESULT CALLBACK wndProc (HWND, UINT, WPARAM, LPARAM) = 0;

What is happening here? How can you assign a function to an integer? Or does it assign it to `NULL`? Do you need to do this if you want to use function pointers in the wndproc?

What does it mean to set the declaration of a function equal to 0? How can you assign an integer to a function?

Until now I used [ActiveState][1]&#39;s [ActivePerl][2], and used the ppm for installing modules.

Last week I moved to [Strawberry Perl][3], but I don&#39;t know how I should install modules using Strawberry Perl. What is some information on how module installation is done using Strawberry Perl or is there some link on how to install new modules?

  [1]: https://en.wikipedia.org/wiki/ActiveState
  [2]: https://en.wikipedia.org/wiki/ActivePerl
  [3]: https://en.wikipedia.org/wiki/Strawberry_Perl


Installing modules using Strawberry Perl

I want to remove the background drawable `@drawable/bg` programmatically.
Is there a way to do that? 

Currently, I have the following XML in my layout:

	&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
	&lt;RelativeLayout
		android:id=&quot;@+id/widget29&quot;
		android:layout_width=&quot;fill_parent&quot;
		android:layout_height=&quot;fill_parent&quot;
		xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
		android:background=&quot;@drawable/bg&quot;&gt;

	&lt;/RelativeLayout&gt;


Remove background drawable programmatically in Android

Let&#39;s say I have

    &lt;div class=&quot;myDiv&quot;&gt;Hi there&lt;/div&gt;

I want to put a `background-image` and give it an `opacity` of `0.5` – but I want that the text I have written will have full opacity (`1`). 

If I would write the CSS like this

&lt;!-- language: lang-css --&gt;

    .myDiv { opacity:0.5 }

 **everything** will be in low opacity – and I don&#39;t want that.

So my question is – How can I get low-opacity background image with full opacity text?

Can I set an opacity only to the background image of a div?

How do I change the black background of the Aptana IDE (or the entire theme) to a different one, like blue? 

How do I change the background color of aptana studio?

I have a 500x500 px image which is set as a background image on my website (as background-image of `&lt;body&gt;`) But I need this image to be located in a bottom right corner of the webpage. How can I achieve this? (better with css method)

Thank You.

How to position background image in bottom right corner? (CSS)

I have an `UIView` and I set a background image in this way:

    self.view.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@&quot;sfond-appz.png&quot;]];

My problem is that back-image is not centered inside the view, but it&#39;s replayed some times to fill all the view. Is there a way to center image inside uiview and scretch to have screen size? 

Note: I can&#39;t use `UIImageView` for background cause I have a `scrollview`.

How to fill background image of an UIView

This works:

    mkdir(&#39;folder&#39;)
but this doesn&#39;t

    mkdir(&#39;folder/subfolder&#39;)
error:

    WindowsError: [Error 3] The system cannot find the path specified: &#39;folder/subfolder&#39;

python mkdir to make folder with subfolder?

They are same, but which one should I use?

http://docs.python.org/library/os.html:

&gt; `os.sep`
&gt;
&gt; &gt;The character used by the operating system to separate pathname components. This is &#39;/&#39; for   POSIX and &#39;\\&#39; for Windows. Note that knowing this is not sufficient to be able to parse or concatenate pathnames — use os.path.split() and os.path.join() — but it is occasionally useful. Also available via os.path.

which one should I use: os.sep or os.path.sep?

I can take a guess based on the names, but what specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?

Is user-cpu time the amount of time spent executing user-code while kernel-cpu time the amount of time spent in the kernel due to the need of privileged operations (like IO to disk)?

What unit of time is this measurement in?

And is wall-clock time really the number of seconds the process has spent on the CPU or is the name just misleading?

What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?

I want to check the operating system (on the computer where the script runs).

I know I can use `os.system(&#39;uname -o&#39;)` in Linux, but it gives me a message in the console, and I want to write to a variable.

It will be okay if the script can tell if it is Mac, Windows or Linux. How can I check it? 

How do I check the operating system in Python?

I am sorry to ask this question when it has already been asked but I couldn&#39;t get a clarity from them. So I am asking the following related questions to get the difference between system call (mode-switch) and context switch 

- Why is it said that the system call doesn&#39;t require context switch when the context of the 
process making the call has to be saved and then reloaded. Is it just because according to the definition of context switch a switch has to be made to another process.

- What does it mean that when a system call is made the kernel executes in &quot;user context&quot;.


- According to the wikipedia article : [http://en.wikipedia.org/wiki/Context_switch][1]

a context switch is not necessary for system call but it depends on the operating system and a context switch might occur during a system call. I am wondering what would happen in the case when the context switch takes place at the time of system call. Any examples?


  [1]: http://en.wikipedia.org/wiki/Context_switch

System call and context switch

I have to download a file from an SFTP server everyday. I have the program which retrieves the file from the server but I was thinking of setting up a cron job (or anything similar) to automate that. We are a Windows shop and need to set up the cron job in Windows. 

Setting up a cron job in Windows

## Situation

I have a Runnable. I have a class that schedules this Runnable for execution using a ScheduledExecutorService with [scheduleWithFixedDelay](http://download.oracle.com/javase/1,5.0/docs/api/java/util/concurrent/ScheduledExecutorService.html#scheduleWithFixedDelay%28java.lang.Runnable,%20long,%20long,%20java.util.concurrent.TimeUnit%29).

## Goal

I want to alter this class to schedule the Runnable for fixed delay execution _either_ indefinitely, _or_ until it has been run a certain number of times, depending on some parameter that is passed in to the constructor.

If possible, I would like to use the same Runnable, as it is conceptually the same thing that should be &quot;run&quot;.

## Possible approaches

### Approach #1

Have two Runnables, one that cancels the schedule after a number of executions (which it keeps a count of) and one that doesn&#39;t:

    public class MyClass{
        private ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor();

        public enum Mode{
            INDEFINITE, FIXED_NO_OF_TIMES
        }

        public MyClass(Mode mode){
            if(mode == Mode.INDEFINITE){
                scheduler.scheduleWithFixedDelay(new DoSomethingTask(), 0, 100, TimeUnit.MILLISECONDS);
            }else if(mode == Mode.FIXED_NO_OF_TIMES){
                scheduler.scheduleWithFixedDelay(new DoSomethingNTimesTask(), 0, 100, TimeUnit.MILLISECONDS);
            }
        }
        
        private class DoSomethingTask implements Runnable{
            @Override
            public void run(){
                doSomething();
            }
        }
        
        private class DoSomethingNTimesTask implements Runnable{
            private int count = 0;
    
            @Override
            public void run(){
                doSomething();
                count++;
                if(count &gt; 42){
                    // Cancel the scheduling.
                    // Can you do this inside the run method, presumably using
                    // the Future returned by the schedule method? Is it a good idea?
                }
            }
        }
        
        private void doSomething(){
            // do something
        }
    }

I would rather just have one Runnable for the execution of the doSomething method. Tying the scheduling to the Runnable feels wrong. What do you think about this?

### Approach #2

Have a single Runnable for the execution of the code that we want to run periodically. Have a separate scheduled runnable that checks how many times the first Runnable has run and cancels when it gets to a certain amount. This may not be accurate, as it would be asynchronous. It feels a bit cumbersome. What do you think about this?

### Approach #3

Extend ScheduledExecutorService and add a method &quot;scheduleWithFixedDelayNTimes&quot;. Perhaps such a class already exists? Currently, I&#39;m using `Executors.newSingleThreadScheduledExecutor();` to get my ScheduledExecutorService instance. I would presumably have to implement similar functionality to instantiate the extended ScheduledExecutorService. This could be tricky. What do you think about this?

### No scheduler approach [Edit]

I could not use a scheduler. I could instead have something like:

    for(int i = 0; i &lt; numTimesToRun; i++){
        doSomething();
        Thread.sleep(delay);
    }

And run that in some thread. What do you think of that? You could potentially still use the runnable and call the run method directly.

---

Any suggestions welcome. I&#39;m looking for a debate to find the &quot;best practice&quot; way of achieving my goal.

How to stop a Runnable scheduled for repeated execution after a certain number of executions

I am working on a C# WPF project. I need to allow the user to create and add a scheduled task to the Windows Task Scheduler. 

How could I go about doing this and what using directives and references do I need as I am not finding much when searching the Internet. 

Creating Scheduled Tasks

I need to schedule a task to run in at fixed interval of time. How can I do this with support of long intervals (for example on each 8 hours)?

I&#39;m currently using `java.util.Timer.scheduleAtFixedRate`. Does `java.util.Timer.scheduleAtFixedRate` support long time intervals? 

How to schedule a periodic task in Java?

In Linux, supposing a thread&#39;s pid is [pid], from the directory /proc/[pid] we can get many useful information. For example, these proc files, /proc/[pid]/status,/proc/[pid]/stat and /proc/[pid]/schedstat are all useful. But how can I get the CPU core number that a thread is running in? If a thread is in sleep state, how can I know which core it will run after it is scheduled again?

BTW, is there a way to dump the process(thread) list of running and sleeping tasks for each CPU core?

How can I see which CPU core a thread is running in?

You know how if you&#39;re the administrative user of a system and you can just right click say, a batch script and run it as Administrator without entering the administrator password?

I&#39;m wondering how to do this with a PowerShell script. I do not want to have to enter my password; I just want to mimic the right-click *Run As Administrator* method.

Everything I read so far requires you to supply the administrator password.


Running a command as Administrator using PowerShell?

On Windows&amp;nbsp;7, I have a command-line program that fails due to file write permission errors, and popping up annoying [UAC][1] dialogs every time I run command-line programs that are from an &#39;unknown publisher&#39;.

However, if I start my console by right clicking and choosing &#39;run as administrator&#39;, then the install works fine, even if the UAC dialogs are still present.

My user is already a member of the &#39;administrators&#39; group, so what precisely does &#39;run as administrator&#39; do that makes my install work?

My specific question is precisely: What does &#39;run as administrator&#39; do? Neither of the answers thus far address this. (for example, does it run the new process as the &#39;Administrator&#39; user? Or does it run the process as the current user, but with elevated privileges? If so, what privileges? How does that differ from the privileges I get from my user being in the &#39;Administrators&#39; group?

(Specifically, I&#39;m using the &#39;Console&#39; from [SourceForge][2], not a regular CMD window, but I don&#39;t think that&#39;s important. This is all while installing the Python &#39;distribute&#39; package by running &#39;python distribute_setup.py&#39; on a newly installed Python3 MSI from python.org. It&#39;s a 32-bit Python on 64-bit Windows. See *https://stackoverflow.com/questions/8951862*)

  [1]: http://en.wikipedia.org/wiki/User_Account_Control
  [2]: http://en.wikipedia.org/wiki/SourceForge


What precisely does &#39;Run as administrator&#39; do?

I am using &quot;runas&quot; to open command prompt  as a different user but that command prompt is not 
running as an admin. How can I make it run as an admin?

UPDATE: I am using Windows Server 2012

UPDATE: I opened cmd for another account by running

     runas /user:domain\username cmd.exe
Then I tried to run some commands in this new prompt but this is not running as an elevated user (even though it has Administrator privileges). 

Content Type	Original Author	Original Content on Stackoverflow
Question	Samuel Liew	View Question on Stackoverflow
Solution 1 - Windows	Samuel Liew	View Answer on Stackoverflow
Solution 2 - Windows	Jay Sidri	View Answer on Stackoverflow

How do I set a Windows scheduled task to run in the background?

Windows Problem Overview

Windows Solutions

Solution 1 - Windows

Solution 2 - Windows

How to catch integer(0)?

Fragment Inside Fragment

Attributions