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• shell script or command to search and replace [closed]

  - by Redbox

  Possible Duplicate: My server’s been hacked EMERGENCY lately website on my server has been infected with nasty javascript like this: http://pastebin.com/7XCidF6C i wonder is there any where to search and remove the entire script block? i only know how to search which files: find /home/loudcom/public_html/tv -iname '.' | xargs grep --color 'f1930e\|fff309' how do i apply sed or any other command to replace the entire block of nasty code to empty? im using Centos 6.

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• Command line tool to format c++ code on ubuntu

  - by michael

  Hi, Is there any command line tool which can be used to beautify c++ file on ubuntu? If yes, can you please suggest one? Thank you.

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• The meaning of the first line output in the iwconfig command in Linux

  - by John Smith

  When I'm using the iwconfig command on my current wifi interface , wlan0 , the first line I get as output is wlan0 IEEE 802.11bgn. When I try to do this when I am connected to other WiFi's, I sometimes get other versions, like IEEE 802.11bg or IEEE 802.11abgn. I want to ask, what's the meaning of this output? if the output is IEEE 802.11bgn then it means that this WiFi supports both the b , g and n standards or it means something else? Thnaks :)

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• Make command in Ubuntu linux

  - by faby

  I just recently started learning different Linux commands but I still don't understand how to use the 'make' command. Please is there anyone that understands how to use 'make'?

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• command line LVM issue on CentOS 5

  - by alex-M

  I am able to create from using lvm GUI to do as follows: /dev/var-v0l/var /var ext3 defaults 1 2 /dev/varopt-vol/var-opt /var/opt ext3 defaults 1 2 $df /dev/mapper/var-v0l 103208224 1881092 96084460 2% /var /dev/mapper/varopt-vol 103208224 192252 97773300 1% /var/opt but using command line LVM I created I can not do as the above $ df df: `/var/opt': No such file or directory /dev/mapper/var-v0l 103208224 1881092 96084460 2% /var What am I missing.

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• WPF: Menu Items only bind command parameters once.

  - by Aran Mulholland

  Ive noticed this a couple of times when using menus with commands, they are not very dynamic, check this out. I am creating a menu from a collection of colours, I use it to colour a column in a datagrid. Anyway when i first bring up the menu (its a context menu) the command parameter binding happens and it binds to the column that the context menu was opened on. However the next time i bring it up it seems wpf caches the menu and it doesnt rebind the command parameter. so i can set the colour only on the initial column that the context menu appeared on. I have got around this situation in the past by making the menu totally dynamic and destroying the collection when the menu closed and forcing a rebuild the next time it opened, i dont like this hack. anyone got a better way? <MenuItem Header="Colour" ItemsSource="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:ResultEditorGrid}}, Path=ColumnColourCollection}" ItemTemplate="{StaticResource colourHeader}" > <MenuItem.Icon> <Image Source="{StaticResource ColumnShowIcon16}" /> </MenuItem.Icon> <MenuItem.ItemContainerStyle> <Style TargetType="MenuItem" BasedOn="{StaticResource systemMenuItemStyle}"> <!--Warning dont change the order of the following two setters otherwise the command parameter gets set after the command fires, not mush use eh?--> <Setter Property="CommandParameter"> <Setter.Value> <MultiBinding> <MultiBinding.Converter> <local:ColumnAndColourMultiConverter/> </MultiBinding.Converter> <Binding RelativeSource="{RelativeSource AncestorType={x:Type DataGridColumnHeader}}" Path="Column"/> <Binding Path="."/> </MultiBinding> </Setter.Value> </Setter> <Setter Property="Command" Value="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:ResultEditorGrid}}, Path=ColourColumnCommand}" /> </Style> </MenuItem.ItemContainerStyle> </MenuItem>

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• AvalonDock + UserControl + DataGrid + ContextMenu command routing issue

  - by repka

  I have this kind of layout: <Window x:Class="DockAndMenuTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:ad="clr-namespace:AvalonDock;assembly=AvalonDock" Title="MainWindow" Height="350" Width="525"> <ad:DockingManager> <ad:DocumentPane> <ad:DockableContent Title="Doh!"> <UserControl> <UserControl.CommandBindings> <CommandBinding Command="Zoom" Executed="ExecuteZoom" CanExecute="CanZoom"/> </UserControl.CommandBindings> <DataGrid Name="_evilGrid"> <DataGrid.Resources> <Style TargetType="DataGridRow"> <Setter Property="ContextMenu"> <Setter.Value> <ContextMenu> <MenuItem Command="Zoom"/> </ContextMenu> </Setter.Value> </Setter> </Style> </DataGrid.Resources> </DataGrid> </UserControl> </ad:DockableContent> </ad:DocumentPane> </ad:DockingManager> </Window> Briefly: ContextMenu is set for each DataGridRow of DataGrid inside UserControl, which in its turn is inside DockableContent of AvalonDock. Code-behind is trivial as well: public partial class MainWindow { public MainWindow() { InitializeComponent(); _evilGrid.ItemsSource = new[] { Tuple.Create(1, 2, 3), Tuple.Create(4, 4, 3), Tuple.Create(6, 7, 1), }; } private void ExecuteZoom(object sender, ExecutedRoutedEventArgs e) { MessageBox.Show("zoom !"); } private void CanZoom(object sender, CanExecuteRoutedEventArgs e) { e.CanExecute = true; } } So here's the problem: right-clicking on the selected row (if it it was selected before the right click) my command comes out disabled. The command is "Zoom" in this case, but can be any other, including a custom one. If I get rid of either docking or UserControl around my grid there are no problems. ListBox doesn't have this issue either. So I don't know what's at fault here. SNOOP shows that in cases when this propagation fails, instead of UserControl, CanExecute is handled by PART_ShowContextMenuButton (Button), which is part of docking header. I've had other issues with UI command propagation within UserControls hosted inside AvalonDock, but this one is the easiest to reproduce.

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• Supporting Piping (A Useful Hello World)

  - by blastthisinferno

  I am trying to write a collection of simple C++ programs that follow the basic Unix philosophy by: Make each program do one thing well. Expect the output of every program to become the input to another, as yet unknown, program. I'm having an issue trying to get the output of one to be the input of the other, and getting the output of one be the input of a separate instance of itself. Very briefly, I have a program add which takes arguments and spits out the summation. I want to be able to pipe the output to another add instance. ./add 1 2 | ./add 3 4 That should yield 6 but currently yields 10. I've encountered two problems: The cin waits for user input from the console. I don't want this, and haven't been able to find a simple example showing a the use of standard input stream without querying the user in the console. If someone knows of an example please let me know. I can't figure out how to use standard input while supporting piping. Currently, it appears it does not work. If I issue the command ./add 1 2 | ./add 3 4 it results in 7. The relevant code is below: add.cpp snippet // ... COMMAND LINE PROCESSING ... std::vector<double> numbers = multi.getValue(); // using TCLAP for command line parsing if (numbers.size() > 0) { double sum = numbers[0]; double arg; for (int i=1; i < numbers.size(); i++) { arg = numbers[i]; sum += arg; } std::cout << sum << std::endl; } else { double input; // right now this is test code while I try and get standard input streaming working as expected while (std::cin) { std::cin >> input; std::cout << input << std::endl; } } // ... MORE IRRELEVANT CODE ... So, I guess my question(s) is does anyone see what is incorrect with this code in order to support piping standard input? Are there some well known (or hidden) resources that explain clearly how to implement an example application supporting the basic Unix philosophy? @Chris Lutz I've changed the code to what's below. The problem where cin still waits for user input on the console, and doesn't just take from the standard input passed from the pipe. Am I missing something trivial for handling this? I haven't tried Greg Hewgill's answer yet, but don't see how that would help since the issue is still with cin. // ... COMMAND LINE PROCESSING ... std::vector<double> numbers = multi.getValue(); // using TCLAP for command line parsing double sum = numbers[0]; double arg; for (int i=1; i < numbers.size(); i++) { arg = numbers[i]; sum += arg; } // right now this is test code while I try and get standard input streaming working as expected while (std::cin) { std::cin >> arg; std::cout << arg << std::endl; } std::cout << sum << std::endl; // ... MORE IRRELEVANT CODE ...

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• FluentNHibernate Unit Of Work / Repository Design Pattern Questions

  - by Echiban

  Hi all, I think I am at a impasse here. I have an application I built from scratch using FluentNHibernate (ORM) / SQLite (file db). I have decided to implement the Unit of Work and Repository Design pattern. I am at a point where I need to think about the end game, which will start as a WPF windows app (using MVVM) and eventually implement web services / ASP.Net as UI. Now I already created domain objects (entities) for ORM. And now I don't know how should I use it outside of ORM. Questions about it include: Should I use ORM entity objects directly as models in MVVM? If yes, do I put business logic (such as certain values must be positive and be greater than another Property) in those entity objects? It is certainly the simpler approach, and one I am leaning right now. However, will there be gotchas that would trash this plan? If the answer above is no, do I then create a new set of classes to implement business logic and use those as Models in MVVM? How would I deal with the transition between model objects and entity objects? I guess a type converter implementation would work well here. Now I followed this well written article to implement the Unit Of Work pattern. However, due to the fact that I am using FluentNHibernate instead of NHibernate, I had to bastardize the implementation of UnitOfWorkFactory. Here's my implementation: using System; using FluentNHibernate.Cfg; using FluentNHibernate.Cfg.Db; using NHibernate; using NHibernate.Cfg; using NHibernate.Tool.hbm2ddl; namespace ELau.BlindsManagement.Business { public class UnitOfWorkFactory : IUnitOfWorkFactory { private static readonly string DbFilename; private static Configuration _configuration; private static ISession _currentSession; private ISessionFactory _sessionFactory; static UnitOfWorkFactory() { // arbitrary default filename DbFilename = "defaultBlindsDb.db3"; } internal UnitOfWorkFactory() { } #region IUnitOfWorkFactory Members public ISession CurrentSession { get { if (_currentSession == null) { throw new InvalidOperationException(ExceptionStringTable.Generic_NotInUnitOfWork); } return _currentSession; } set { _currentSession = value; } } public ISessionFactory SessionFactory { get { if (_sessionFactory == null) { _sessionFactory = BuildSessionFactory(); } return _sessionFactory; } } public Configuration Configuration { get { if (_configuration == null) { Fluently.Configure().ExposeConfiguration(c => _configuration = c); } return _configuration; } } public IUnitOfWork Create() { ISession session = CreateSession(); session.FlushMode = FlushMode.Commit; _currentSession = session; return new UnitOfWorkImplementor(this, session); } public void DisposeUnitOfWork(UnitOfWorkImplementor adapter) { CurrentSession = null; UnitOfWork.DisposeUnitOfWork(adapter); } #endregion public ISession CreateSession() { return SessionFactory.OpenSession(); } public IStatelessSession CreateStatelessSession() { return SessionFactory.OpenStatelessSession(); } private static ISessionFactory BuildSessionFactory() { ISessionFactory result = Fluently.Configure() .Database( SQLiteConfiguration.Standard .UsingFile(DbFilename) ) .Mappings(m => m.FluentMappings.AddFromAssemblyOf<UnitOfWorkFactory>()) .ExposeConfiguration(BuildSchema) .BuildSessionFactory(); return result; } private static void BuildSchema(Configuration config) { // this NHibernate tool takes a configuration (with mapping info in) // and exports a database schema from it _configuration = config; new SchemaExport(_configuration).Create(false, true); } } } I know that this implementation is flawed because a few tests pass when run individually, but when all tests are run, it would fail for some unknown reason. Whoever wants to help me out with this one, given its complexity, please contact me by private message. I am willing to send some $$$ by Paypal to someone who can address the issue and provide solid explanation. I am new to ORM, so any assistance is appreciated.

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• Linux Distro for Beginners

  - by XLR3204S

  Well... I know that's the question arising all over the Internet, but I couldn't find an answer to suit me after googling for quite some time. I'd like to get a Linux distribution, and start learning using the CLI. I'm looking for a distribution already having GNOME installed, as I'll be using Linux-Command.org as my learning resource, and I'm not very familiar with CLI-based web browsers. I'd mainly like to get to know my way around a UNIX-based system, and then I think I'd like to pick up a CLI-only distribution, and start doing more complex stuff. I've tried Ubuntu, Fedora Core, OpenSolaris and FreeBSD (the last two aren't linux distros, I know). Ubuntu and FC are fine, they do come with Firefox, but I'm not really sure they're meant for learning purposes. OpenSolaris was OK as well, but I haven't got to play with it enough. FreeBSD 7.2 did not want to install itself on my 13" MacBook Pro, it generated a kernel panic everytime while copying the files to the disk. So to sum this up, I'm trying to learn Linux, and I'm willing to invest time into this (that is, not giving up when the first problems arise). I also have intermediate knowledge of C++, if it helps, and I'm also using the CLI-vim to write small C++ CLI-based programs, so text editing should be any problem. And... speaking of Macs, how am I going to be limited if I try to learn how to use UNIX-based systems using the OS X Terminal? It uses bash 3.2, isn't this the same shell as the one found on most of the Linux machines? How does the fact that OS X is based on FreeBSD 4.4, if I'm not mistaking, affect this? Thanks in advance, and hopefully, I'll have a starting point ASAP.

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• Newbie: get access privilege

  - by Mellon

  I am newbie on Linux Ubuntu machine. I logged in to the Ubuntu with username: student. There are some directories only allowed root user to access, for example /var/lib/mysql ,(I know I can use sudo to access but it is not what I want). If I want to get the access privilege on those directories with student account, is it so that I can run the following command : chown student: PATH_TO_ROOT_USER_PRIVILEGED_DIR and after that, I can access that directory by using my own account ? am I right? If I am right, then will root user lose the access privilege because I changed it to student user? If I am wrong, please tell me the right solution. P.S. please don't concern on what I am going to do on /var/lib/mysql directory, that is only my example, as I mentioned above, I mean generally *for those directories which only have root privilege*, can I use chown to change access privilege and will root user then loose the access because of the change made by chown ? I just wanna know the effect of chown.

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• Menu tab completion for recent history in zsh

  - by dat5h

  I am interested in a potential zle widget for zsh. Is there a way to build a widget that mimics the kill-completion selectable menu? Essentially I want to be able to press , tab in vi-command-mode, or maybe !-tab-completion at the shell and get a list of recent history (or related history compared what is already entered at the commandline) that allows me to scroll through it and possibly select a relevant function to call or compare similar calls. Looking through the manual I stumbled onto a similar widget that I have mapped like so: # tab completion history menu (vicmd) autoload -z history-beginning-search-menu zle -N history-beginning-search-menu-space-end history-beginning-search-menu bindkey -M vicmd "\t" history-beginning-search-menu-space-end # emacs binding could be "\e\t"? (I wouldn't know) Therefore, if I enter vicmd and hit tab when I enter something like "grep", then I get a list of all grep calls in history. It also asks me for the list-number and it will perform the numbered item in history. If I enter a space and then try this, it lists ALL of my history history. This is fairly close to what I want, but there are some problems. For example, 1) it prints the entire list of relevant history and does not check the number of lines of the screen so it could easily blow up the space on the terminal; 2) when I type in numbers for selecting an item in history it does not show me the numbers I type, so I may make a mistake and have to start over again; 3) I would love to be able to hook in appearance tweaks. I was wondering if there exists more updated version of this widget or if there is any way to look at the source for kill-completion or history-beginning-search-menu to see if I could think of a way to do it.

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• script to run sox to combine multiple mono tracks to stereo

  - by Ze'ev

  I have a folder full of .wav audio files. Some are stereo, most are mono splits. The mono split pairs are all named foo bar track.L.wav and foo bar track.R.wav I can use the command line tool sox to combine a mono pair into 1 stereo track like this: sox -M track1.L.wav track1.R.wav track1.Stereo.wav where the first 2 files are the mono pairs, and the third is the output stereo file. This is great, but I'd like to have a script that will automatically find all the mono pairs and combine them into stereo files. I.e., I need it to find all files which have the same name except for the .L. and .R. before the extension, and run sox on them, outputting to a new file with the same name without the L/R suffix. For example, if my folder contains these files: track1.L.wav track2.L.wav track3.L.wav track4.L.wav track1.R.wav track2.R.wav track3.R.wav track4.R.wav track6.wav track7.wav I need to run these commands: sox -M track1.L.wav track1.R.wav track1.Stereo.wav sox -M track2.L.wav track2.R.wav track2.Stereo.wav sox -M track3.L.wav track3.R.wav track3.Stereo.wav sox -M track4.L.wav track4.R.wav track4.Stereo.wav Here's where I am so far: for file in ./*.L.wav; do file2=`echo $file | sed 's_\(.*\).L.wav_\1.R.wav_'`; out=`echo $file | sed 's_\(.*\).L.wav_\1.STEREO.wav_'`; echo $file - $file2 - $out; done That works, but when I replace the echo line with sox -M $file $file2 $out; it doesn't work; spaces in the filenames cause it to fail.

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• windows 7 64 bit visual studio 2008 libtiff build nmake error

  - by user1244539

  I am trying to build tiff 4.0.2 on my Windows 7 x64 system with Visual Studio 2008, but it was showing errors: C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2347) : error C2061: syntax error : identifier 'QINT' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2362) : error C2059: syntax error : '}' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2397) : error C2061: syntax error : identifier 'JOYCAPS' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2397) : error C2059: syntax error : ';' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2398) : error C2061: syntax error : identifier 'PJOYCAPS' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2398) : error C2059: syntax error : ';' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2399) : error C2061: syntax error : identifier 'NPJOYCAPS' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2399) : error C2059: syntax error : ';' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2400) : error C2061: syntax error : identifier 'LPJOYCAPS' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2400) : error C2059: syntax error : ';' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2534) : error C2146: syntax error : missing ')' before identifier 'pjc' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2534) : error C2081: 'LPJOYCAPSA' : name in formal parameter list illegal C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2534) : error C2061: syntax error : identifier 'pjc' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2534) : error C2059: syntax error : ';' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2534) : error C2059: syntax error : ',' C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\mmsystem.h(2534) : error C2059: syntax error : ')' NMAKE: fatal error u1077: "c:\program files(x86)\microsoft visual studio 9.0\vc\bin\cl.exe": return code '0x2' This is what I was doing: Extracted tiff 4.0.2 In VS 2008 x64 Win 7 command prompt setting the environment for x86 by running vcvars32.bat Changing the path to tiff 4.0.2/libtiff folder Running nmake /f makefile.vc to create a static library of libtiff Following these steps in Windows XP generates the .lib file but in Windows 7 it fails. This is the first time I'm making any .lib files.

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• Batch copy gives errors, xcopy works fine

  - by ndm13

  I am writing a general file backup program. It searches the drive for files matching a set of types and then writes them to a folder on the desktop. I wrote it using xcopy on Windows XP but upon learning that xcopy was deprecated in favor of robocopy in Vista and newer, still wanting to maintain compatibility I decided to switch to the non-deprecated copy. This is where the problems begin. I'm trying to fix the copy routine. I thought I had everything sorted out, but it doesn't copy anything. My output is zero files copied for every iteration. Original Code using xcopy: for /r %%a in (*.bmp *.dds *.gif *.jpg *.jpeg *.png *.psd *.pspimage *.tga *.thm *.tif *.tiff) do ( echo f | xcopy "%%a" "%HOMEDRIVE%%HOMEPATH%\Desktop\LDR\Images\Bitmap\%%~nxa" /q /y /g /c ) Revised (broken) Code using copy: for /r %%a in (*.bmp *.dds *.gif *.jpg *.jpeg *.png *.psd *.pspimage *.tga *.thm *.tif *.tiff) do ( copy "%%a" "%HOMEDRIVE%%HOMEPATH%\Desktop\LDR\Images\Bitmap\%%~nxa" /d /y /z ) Output: The system cannot find the path specified. 0 files copied. I know that it seems everyone uses either xcopy or robocopy but can anyone help with copy? Note: I'm using Batch to keep it very lightweight and command-line accessible.

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• Combining template method with strategy

  - by Mekswoll

  An assignment in my software engineering class is to design an application which can play different forms a particular game. The game in question is Mancala, some of these games are called Wari or Kalah. These games differ in some aspects but for my question it's only important to know that the games could differ in the following: The way in which the result of a move is handled The way in which the end of the game is determined The way in which the winner is determined The first thing that came to my mind to design this was to use the strategy pattern, I have a variation in algorithms (the actual rules of the game). The design could look like this: I then thought to myself that in the game of Mancala and Wari the way the winner is determined is exactly the same and the code would be duplicated. I don't think this is by definition a violation of the 'one rule, one place' or DRY principle seeing as a change in rules for Mancala wouldn't automatically mean that rule should be changed in Wari as well. Nevertheless from the feedback I got from my professor I got the impression to find a different design. I then came up with this: Each game (Mancala, Wari, Kalah, ...) would just have attribute of the type of each rule's interface, i.e. WinnerDeterminer and if there's a Mancala 2.0 version which is the same as Mancala 1.0 except for how the winner is determined it can just use the Mancala versions. I think the implementation of these rules as a strategy pattern is certainly valid. But the real problem comes when I want to design it further. In reading about the template method pattern I immediately thought it could be applied to this problem. The actions that are done when a user makes a move are always the same, and in the same order, namely: deposit stones in holes (this is the same for all games, so would be implemented in the template method itself) determine the result of the move determine if the game has finished because of the previous move if the game has finished, determine who has won Those three last steps are all in my strategy pattern described above. I'm having a lot of trouble combining these two. One possible solution I found would be to abandon the strategy pattern and do the following: I don't really see the design difference between the strategy pattern and this? But I am certain I need to use a template method (although I was just as sure about having to use a strategy pattern). I also can't determine who would be responsible for creating the TurnTemplate object, whereas with the strategy pattern I feel I have families of objects (the three rules) which I could easily create using an abstract factory pattern. I would then have a MancalaRuleFactory, WariRuleFactory, etc. and they would create the correct instances of the rules and hand me back a RuleSet object. Let's say that I use the strategy + abstract factory pattern and I have a RuleSet object which has algorithms for the three rules in it. The only way I feel I can still use the template method pattern with this is to pass this RuleSet object to my TurnTemplate. The 'problem' that then surfaces is that I would never need my concrete implementations of the TurnTemplate, these classes would become obsolete. In my protected methods in the TurnTemplate I could just call ruleSet.determineWinner(). As a consequence, the TurnTemplate class would no longer be abstract but would have to become concrete, is it then still a template method pattern? To summarize, am I thinking in the right way or am I missing something easy? If I'm on the right track, how do I combine a strategy pattern and a template method pattern? This is part of a homework assignment but I'm not looking to be gifted the answer, I have deliberately been very verbose in my question to show that I have thought about it before coming here to ask a question

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• good way to implement NotSpecification: isSpecialCaseOf?

  - by koen

  I'm implementing the specification pattern. The NotSpecification seems simple at first: NotSpecification.IsSpecialCaseOf(otherSpecification) return !this.specification.isSpecialCaseOf(otherSpecification) But it doesn't work for all Specifications: Not(LesserThan(5)).IsSpecialCaseOf(GreaterThan(4)) This should be true. So far I think that the only way to accomplish the isSpecialCaseOf the NotSpecification is to implement the remainderUnsatisfiedBy (partial subsumption in the paper on the specification pattern). But maybe I am missing something more simple or a logical insight that makes this unnecessary. Question: Is there another way of implementing this by not using remainderUnsatisfiedBy?

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• Munin email notification

  - by Prashanth

  I am trying to get munin to notify me via email. I have configured munin and it reports critical and warning values but no alerts are being sent neither is any script being called. Can you please help me out with this? I have included part of the munin.conf below # Drop [email protected] and [email protected] an email everytime # something changes (OK -> WARNING, CRITICAL -> OK, etc) #contact.someuser.command mail -s "Munin notification" [email protected]\ contact.prashanth.command echo "Munin notification" | sendmail -t [email protected] contact.prashanth.always_send warning critical contact.root.command echo "Munin notification" | sendmail -t [email protected] contact.root.always_send warning critical contact.pipevia.command | /home/prashanth/script.sh /home/prashanth/script.sh None of this works. What am i missing here and why are emails not being sent? Thanks in advance. here is the munin-limits.log 2011/09/26 14:58:12 Opened log file 2011/09/26 14:58:12 [INFO] Starting munin-limits, getting lock /var/run/munin/munin-limits.lock 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 722. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 725. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 740. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 754. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 759. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $text in length at /usr/share/perl5/Munin/Master/LimitsOld.pm line 774. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $res[3] in join or string at /usr/share/perl5/Munin/Master/LimitsOld.pm line 777. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 722. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 725. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 740. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 754. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 759. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $text in length at /usr/share/perl5/Munin/Master/LimitsOld.pm line 774. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $res[15] in join or string at /usr/share/perl5/Munin/Master/LimitsOld.pm line 777. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 722. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 725. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 740. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 754. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 759. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $text in length at /usr/share/perl5/Munin/Master/LimitsOld.pm line 774. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $res[1] in join or string at /usr/share/perl5/Munin/Master/LimitsOld.pm line 777. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 722. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 725. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 740. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 754. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $a[0] in pattern match (m//) at /usr/share/perl5/Munin/Master/LimitsOld.pm line 759. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $text in length at /usr/share/perl5/Munin/Master/LimitsOld.pm line 774. 2011/09/26 14:58:12 [PERL WARNING] Use of uninitialized value $res[1] in join or string at /usr/share/perl5/Munin/Master/LimitsOld.pm line 777. 2011/09/26 14:58:12 Baz? 2011/09/26 14:58:12 [INFO] munin-limits finished (0.02 sec) 2011/09/26 14:58:12 Command "prashanth" stderr: Munin notification - this is a test mail from the user prashanth | sendmail -t [email protected]

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• Java regex patterns - compile time constants or instance members?

  - by KepaniHaole

  Currently, I have a couple of singleton objects where I'm doing matching on regular expressions, and my Patterns are defined like so: class Foobar { private final Pattern firstPattern = Pattern.compile("some regex"); private final Pattern secondPattern = Pattern.compile("some other regex"); // more Patterns, etc. private Foobar() {} public static Foobar create() { /* singleton stuff */ } } But I was told by someone the other day that this is bad style, and Patterns should always be defined at the class level, and look something like this instead: class Foobar { private static final Pattern FIRST_PATTERN = Pattern.compile("some regex"); private static final Pattern SECOND_PATTERN = Pattern.compile("some other regex"); // more Patterns, etc. private Foobar() {} public static Foobar create() { /* singleton stuff */ } } The lifetime of this particular object isn't that long, and my main reason for using the first approach is because it doesn't make sense to me to hold on to the Patterns once the object gets GC'd. Any suggestions / thoughts?

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• MVVM and Ribbon Command

  - by user312372

  I am trying to change the source property of the frame in Page1.xaml when the SampleCommand is excecuted. How do I acheive this in the View Model? Page1.xaml: <r:RibbonTab.Groups> <r:RibbonGroup GroupSizeDefinitions="{StaticResource RibbonLayout}"> <r:RibbonGroup.Command> <r:RibbonCommand LabelTitle="RibbonButton"/> </r:RibbonGroup.Command> <r:RibbonButton x:Name="RibbonButton1" Command="{Binding Path=SampleCommand}"/> </r:RibbonGroup> </r:RibbonTab.Groups> </r:RibbonTab> </r:Ribbon> <Border Name="PageBorder" Grid.Row="0" Grid.Column="1"> <Frame Name="pageFrame" Source="FirstPage.xaml" /> </Border> </DockPanel> c# Page1ViewModel.cs: RelayCommand _sampleCommand; public ICommand SampleCommand { get { // create command ?? return _sampleCommand } page1.xaml.cs : Page1ViewModel pageViewModel; this.DataContext = pageViewModel; // when pageloads

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• Cron won't use msmtp to send emails in case of failed cronjob

  - by Glister

  I'm trying to configure a machine so that it will send me an email if one of the cronjobs output something in case of an error. I'm using Debian Wheezy. Cron is working normally (without the email functionality). msmtp is installed and configured. Have already symlinked /usr/{bin|sbin}/sendmail to /usr/bin/msmtp. I can send email by using: echo "test" | mail -s "subject" [email protected] or by executing: echo "test" | /usr/sbin/sendmail Without the symlink (/usr/sbin/sendmail) cron will tell me that: (CRON) info (No MTA installed, discarding output) With the symlinks I get: (root) MAIL (mailed 1 byte of output; but got status 0x004e, #012) Can you suggest how to config the cron/msmtp pair? Thanks! EDIT: Note: I've written "msmtpd" by mistake. Its not a daemon but rather an SMTP client named just "msmtp" (without the "d" ending). It is executed on demand and it is not running in the background all the time. When I try to send an email by using msmtp like that it works: echo "test" | msmtp [email protected] On the far side, in the logs of the SMTP server I read: Nov 2 09:26:10 S01 postfix/smtpd[12728]: connect from unknown[CLIENT_IP] Nov 2 09:26:12 S01 postfix/smtpd[12728]: 532301C318: client=unknown[CLIENT_IP], sasl_method=CRAM-MD5, [email protected] Nov 2 09:26:12 S01 postfix/cleanup[12733]: 532301C318: message-id=<> Nov 2 09:26:12 S01 postfix/qmgr[2404]: 532301C318: from=<[email protected]>, size=191, nrcpt=1 (queue active) Nov 2 09:26:12 S01 postfix/local[12734]: 532301C318: to=<[email protected]>, orig_to=<[email protected]>, relay=local, delay=0.62, delays=0.59/0.01/0/0.03, dsn=2.0.0, status=sent (delivered to command: IFS=' ' && exec /usr/bin/procmail -f- || exit 75 #1001) Nov 2 09:26:12 S01 postfix/qmgr[2404]: 532301C318: removed Nov 2 09:26:13 S01 postfix/smtpd[12728]: disconnect from unknown[CLIENT_IP] And the Email is delivered to the target user. So it looks like that the msmtp client is working properly. It has to be something in the cron/msmtp integration, but I have no clue what that thing might be. Can you help me?

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• Bind Command to MenuItem

  - by Neir0

  Hi I have ListView and i am trying to bind command to ContextMenu of ListView. <ListView x:Name="listView1" ItemsSource="{Binding Path=Persons}"> <ListView.Resources> <ContextMenu x:Key="ItemContextMenu"> <MenuItem Header="Add" /> <MenuItem Header="Edit"/> <Separator/> <MenuItem Header="Delete" Command="{Binding Msg}" /> </ContextMenu> </ListView.Resources> <ListView.ItemContainerStyle> <Style TargetType="ListViewItem"> <!--<EventSetter Event="PreviewMouseLeftButtonDown" />--><!--Handler="OnListViewItem_PreviewMouseLeftButtonDown" />--> <Setter Property="ContextMenu" Value="{StaticResource ItemContextMenu}"/> <Setter Property="HorizontalContentAlignment" Value="Stretch" /> </Style> </ListView.ItemContainerStyle> <ListView.View> <GridView> <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Path=Name}" /> <GridViewColumn Header="Sur Name" DisplayMemberBinding="{Binding Path=SurName}" /> <GridViewColumn Header="Age" DisplayMemberBinding="{Binding Path=Age}" /> </GridView> </ListView.View> </ListView> <Button Content="Message" Command="{Binding Msg}" /> Binding to Button works well but when i click to delete item in ContextMenu, command is not working! Why?

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• Batch file to create many files with special characters

  - by MollyO

  Essential info: I have a file "DB_OUTPUT.TXT" with 304 lines that I need to turn into 304 files (one per line). Each line contains many special characters and may be up to tens of thousands of characters long. For these reasons, I'm having difficulty using a cmd.exe batch file (which limits the amount of input) and the echo command (which would try to execute each special character, short of me having to escape them all). I also have a file "DB_OUTPUT_FILENAMES.TXT" containing a distinct filename for each line-soon-to-be-file from "db_output.txt". So line 1 of DB_OUTPUT.TXT needs to be the body of a new file with a name equal to line 1 of DB_OUTPUT_FILENAMES.TXT. Extra info: As you may have guessed, DB_OUTPUT.TXT is output from a database; it contains 304 records with 6 or 7 columns at a fixed width with the last column being a SQL query. Each of these lines (db records) will be used as a script to create new database objects, which is why the special characters need to be preserved. Question: Is there a way to do this in a batch-like fashion? I'd be happy with either a Windows solution or a Linux one.

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• Non-alphanumeric character folder name auto-completion problems

  - by viking

  I have been working with Windows 7's command line and have some folders that begin with non-alphanumeric characters. When I try to use tab completion to complete the folder name, the initial character is not included inside of the quotation marks. Example: C:\Users\username\!example is the folder I want to get into, but when I type: cd ! and press <Tab> to autocomplete, it will complete to cd !"!example" instead of the expected cd "!example" Any ideas on how to fix this besides changing the folder names? EDIT: I realize I could just tab through the entire list after entering cd, but I'm looking for a way to speed up the process. I have been spending a significant amount of time navigating these folders. UPDATE: This also happens if there is a space in the directory. For example: "c:\Program Files". In order to continue using tab to complete, first the second quote has to be deleted. C:\Program press Tab "C:\Program Files" is what appears. To navigate to a subdirectory, first the quote after Program Files has to be deleted before the next directory can be spelled out.

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• Modelling multiple simultaneous states

  - by James P.

  How can you go about modelling an object that can have multiple simultaneous states? For example, you could have a person that's waiting for a bus. That's one state. But they could also be reading a newspaper while waiting for the bus. Furthermore, they could be thinking about something while reading the newspaper. They could also be sniffing their nose because they have a cold. That's a four states in all taking place at the same time. Obviously using booleans would be tedious and unflexible. Also, a conventional state pattern would mean that states are exclusive and can't be simultaneous in nature. The only thing I can think of is a State pattern combined with a Composite. Would this do or is there a way of taking things further?

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