I am using Ubuntu 16.04. my Ubuntu software is not opening.I tried opening it through the terminal.When I type 'open Ubuntu software center', it shows 'Couldn't get a file descriptor referring to the console'. Please give me a solution.
I am a newbie in linux and I don't know how to open the Ubuntu Software Center via Terminal!! Please help
Scamming a scammer? I have seen many questions like:      My question is: what happens if you receive this money (without doing anything or giving your bank account number) but do not do anything scammer wants?  I especially want to know about what happens with the money you got and possible legal consequences.    Is it considered yours because scammer transfered it to you? Do you have to return it? If yes, to whom and in what form? And finally, how is it that scammers are just sending money to random people? Aren't they scared that someone will simply not return it? I understand that this may be stolen money, but it surely took some effort (cash/time) to "acquire" it, so why are they just sending it away? $P[X=x]=0$ when $X$ is continuous variable There are similar questions for  and , but I'm after a Windows solution here.  The problem is as follows: I want to write several (js) script files in a folder, and have a  program monitor that folder for file changes and new files being added, and run a command whenever that happens (to compile them all into one single file).  The solution has to:   Monitor both file changes and new files being added, in a folder. Run a command only if there is any change.   It would be best if it either is a built-in solution (like a JScript or VBscript snippet), or something that does not require installation. How to download all files from Ubuntu One? I just installed Ubuntu 14.04, and Ubuntu One isn't installed by default and their download page says it comes pre installed, which doesn't help with anything.  I wanna move all my files from Ubuntu One to Dropbox, but downloading one file at a time from the browser and upload it again to dropbox will take way too long.  Is there any way to get Ubuntu One on Ubuntu 14.04? or somehow download all files from the Ubuntu One website?  I see they updated their site: Simple prime number generator in Python Could someone please tell me what I'm doing wrong with this code? It is just printing 'count' anyway.  I just want a very simple prime generator (nothing fancy).   import math  def main():     count = 3     one = 1     while one == 1:         for x in range(2, int(math.sqrt(count) + 1)):             if count % x == 0:                  continue             if count % x != 0:                 print count          count += 1 JSP in /WEB-INF returns "HTTP Status 404 The requested resource is not available" According to Wikipedia      extra disks should not be mounted in /mnt/ according to the first link, but doesn't seams so according to the second link.  Both say thought that they shouldn't be in /media.  Question  So where should extra permanent disks be mounted? Order of general- and special linear groups over finite fields. Let $\mathbb{F}_3$ be the field with three elements. Let $n\geq 1$. How many elements do the following groups have?   $\text{GL}_n(\mathbb{F}_3)$ $\text{SL}_n(\mathbb{F}_3)$   Here GL is the , the group of invertible n×n matrices, and SL is the , the group of n×n matrices with determinant 1. Invalid Topology [Topoengine error] from ArcGIS for Desktop? Using ArcGIS 10.1 for Desktop, I'm trying to run the Identity function on two large data sets but it fails every time. I don't think it is a lack of hardware as I can run other processes on the same data sets.   I've already updated software, and added the 64 bit geoprocessing add-in, checked and repaired geometry, and done the fix in  (set ARCTMPDIR env variable to a writable local folder).   Executing: Identity DudleyStamp OA2011 "D:\Case Studies\National2\National.gdb\DudleyStampOA11" ALL "1 Meters" NO_RELATIONSHIPS  Start Time: Wed May 08 21:11:43 2013 Reading Features... Processing Tiles... Assembling Tile Features... ERROR 999999: Error executing function. The table was not found. The table was not found. [DudleyStampOA11] The table was not found.   The table was not found. [DudleyStampOA11]   Invalid Topology [Topoengine error.] Failed to execute (Identity). Failed at Wed May 08 21:45:41 2013 (Elapsed Time: 33 minutes 58 seconds)   Based on comments so far I tried copying data to new file geodatabase, and running the tool from ArcCatalog still get exactly the same error.  I have ordered 16GB of the fastest RAM my computer can take (I current have 4GB). I also have a 6 Core AMD Phenom II X6 1090T, SSD, and AMD Radeon HD 6970 Graphics Card. So I'm not sure what more hardware I can add.  I've also tried increasing the size of the page file which was a suggestion I found on Google with no effect. 32-bit vs. 64-bit systems When I plug in my USB flash drive, it shows up on my computer as write-protected or read-only. I am unable to transfer data to it, nor can I modify or delete any files already stored on it. I also cannot repartition or reformat the drive using Windows Disk Management, DiskPart, GParted, or other tools. The drive does not have a write-protect switch.  Why did this happen and what can I do about it? Is there a way to remove the write protection?  (Note that this can happen with some memory cards, too, as they often use controllers similar to those used in flash drives. In some cases, the system may report that the drive or card was formatted successfully even though it was never actually formatted; the original data reappears when the device is reinserted.)     This question comes up often and the answers are usually the same. This post is meant to provide a definitive, canonical answer for this problem. Feel free to edit the answer to add additional details. How to instantiate polymer component programmatically in dartlang? Setting the pivot point of an object I have a sword that currently rotates around a pivot point thats off of the actual object. Im new to blender and im not sure how i would go about changing it so that the sword rotates around the handle. Any help would be appreciated! 70s or 80s Book. Post Catastrophe, Sheriff tries to hold town together, and keep his schizo wife from killing him When defining a method on a class in Python, it looks something like this:  class MyClass(object):     def __init__(self, x, y):         self.x = x         self.y = y   But in some other languages, such as C#, you have a reference to the object that the method is bound to with the "this" keyword without declaring it as an argument in the method prototype.    Was this an intentional language design decision in Python or are there some implementation details that require the passing of "self" as an argument? SPWeb.getFile(Url) exception : value does not fall within the expected range Attribute editing in QGIS on geoJson file We have vector files in the format of geoJson files. We need to keep it in geoJson format as it is picked up by mobile devices via Restful services.  The problem is we want to change the attributes of the features in QGIS but it seems like this is not possible. We don't have to add or remove columns. We simply need to edit the existing data.  Is there a work around for this?  Are there any plugins that I can download that will allow me to do this in QGIS? Combinations of selecting $n$ objects with $k$ different types Suppose that I am buying cakes for a party. There are $k$ different types and I intend to buy a total of $n$ cakes. How many different combinations of cakes could I possibly bring to the party? I'm mainly a C# developer, but I'm currently working on a project in Python.  How can I represent the equivalent of an Enum in Python? How to hide TabPage from TabControl