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  • Delete Perl install files?

    - by Bjorn
    I have a VPS that is managed and am mysteriously running out of space, I think I found a few files I can delete. So just double checking it's ok to delete the Perl install files: /root/perl588installer.tar.gz (pretty sure this can go) /root/perl588installer/ (wasn't sure if this can go, I'm thinking it's just used when perl is installed) I rarely install this kind of thing myself but when I do I'm sure you can delete these files. Thanks

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  • SQL SERVER – DELETE, TRUNCATE and RESEED Identity

    - by pinaldave
    Yesterday I had a headache answering questions to one of the DBA on the subject of Reseting Identity Values for All Tables. After talking to the DBA I realized that he has no clue about how the identity column behaves when there is DELETE, TRUNCATE or RESEED Identity is used. Let us run a small T-SQL Script. Create a temp table with Identity column beginning with value 11. The seed value is 11. USE [TempDB] GO -- Create Table CREATE TABLE [dbo].[TestTable]( [ID] [int] IDENTITY(11,1) NOT NULL, [var] [nchar](10) NULL ) ON [PRIMARY] GO -- Build sample data INSERT INTO [TestTable] VALUES ('val') GO When seed value is 11 the next value which is inserted has the identity column value as 11. – Select Data SELECT * FROM [TestTable] GO Effect of DELETE statement -- Delete Data DELETE FROM [TestTable] GO When the DELETE statement is executed without WHERE clause it will delete all the rows. However, when a new record is inserted the identity value is increased from 11 to 12. It does not reset but keep on increasing. -- Build sample data INSERT INTO [TestTable] VALUES ('val') GO -- Select Data SELECT * FROM [TestTable] Effect of TRUNCATE statement -- Truncate table TRUNCATE TABLE [TestTable] GO When the TRUNCATE statement is executed it will remove all the rows. However, when a new record is inserted the identity value is increased from 11 (which is original value). TRUNCATE resets the identity value to the original seed value of the table. -- Build sample data INSERT INTO [TestTable] VALUES ('val') GO -- Select Data SELECT * FROM [TestTable] GO Effect of RESEED statement If you notice I am using the reseed value as 1. The original seed value when I created table is 11. However, I am reseeding it with value 1. -- Reseed DBCC CHECKIDENT ('TestTable', RESEED, 1) GO When we insert the one more value and check the value it will generate the new value as 2. This new value logic is Reseed Value + Interval Value – in this case it will be 1+1 = 2. -- Build sample data INSERT INTO [TestTable] VALUES ('val') GO -- Select Data SELECT * FROM [TestTable] GO Here is the clean up act. -- Clean up DROP TABLE [TestTable] GO Question for you: If I reseed value with some random number followed by the truncate command on the table what will be the seed value of the table. (Example, if original seed value is 11 and I reseed the value to 1. If I follow up with truncate table what will be the seed value now? Here is the complete script together. You can modify it and find the answer to the above question. Please leave a comment with your answer. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • How to delete just one LINE of text (NOT a table-row!) with a single KEYBOARD shortcut in Microsoft Office Word 2010?

    - by Sk8erPeter
    Are there any shortcuts to delete just one row (which is NOT a table row, just a single row in a text) in Microsoft Office Word 2010? If not, how can I assign one to do it? In worst case, can I make a macro (in VB) which could do the same with a custom shortcut? To clarify my problem: I would like to avoid multiple clicks and/or pushing multiple buttons, even if I click in the middle of the line of text. :) For example, in Notepad++ I can delete the entire current line with Ctrl+L, in NetBeans, I can delete an entire line with Ctrl+E, in Eclipse, I can delete current line with Ctrl+D, etc., where it doesn't really matter where my mouse cursor is actually... so there are these simple solutions, which I look for in Word too. It really would simplify my work in huge documents.

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  • OneNote: How to delete a notebook

    - by Sahil Malik
    SharePoint, WCF and Azure Trainings: more information I’m filing this under the absurdity of stupid design. Or perhaps, we didn’t really use it ourselves before releasing it. I’m talking about OneNote the metro app. Beautiful app, beautiful concept, until of course, you feel like deleting the default notebook it creates for you. Why would anyone want to delete that of course! Hell everyone would want to! It’s the first damned thing you’d do. How do you delete a section? There is a button at the bottom.How do you delete a page? Well just like section, there is a button at the bottom. So you wish to delete a notebook? There is no button at the bottom. That’d be no fun of course! Here is how, Read full article ....

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  • Delete button in Ubuntu One Notes

    - by Jean MC13
    For the whishlist... The 'delete button' in Ubuntu One Notes is exactly in the same place as the 'save' button. So I saved a long note, but as my finger clicked two times on the save button, the second click was on the 'delete' one ! Lost without return possible. <:-(( This annoying feature could easily be changed : - put the delete button in another place - before deleting : ask for confirmation - offer a way to cancel ('undelete' function)

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  • How to delete vssver2.scc and global.asax from my Windows Server?

    - by rlb.usa
    I have a Windows server that I SFTP into, and I have some very old vssver2.scc files on there. They are used by Visual Source Safe- which is no longer used (SVN instead now). I want to delete them. Most troubling though is a very old global.asax file used by ASP.NET applications - since the app is compiled, it reads from it's global.dll in the Bin folder, and not the global.asax. I want to get rid of it. But I can't - and I can't overwrite it in favor of a newer one either. These files have 444 (Owner:r Group:r Public:r) permission and when I try to give them 777 (O:rwx G:rwx P:rwx) permission hoping it will let me delete them, it goes back to 444.

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  • How do I delete Windows.old in Windows 7?

    - by CRK
    I used to run Windows 7 32 bit, but installed the 64 bit version because of a RAM upgrade. During the installation I got this message: The partition you selected might contain files from a previous Windows installation. If it does, these files and folders will be moved to a folder named Windows.old. You will be able to access the information in Windows.old, but you will not be able to use your previous version of Windows. The C:\ drive now has two (2) Windows folders: Windows (15.3 GB) Windows.old (15.7 GB) Don't see why I need the Windows.old taking over 15GB of space on my hard drive so I tried to delete it. It didn't work. How can I safely delete this folder?

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  • How do I recursively delete all files or folders whose names match a pattern in Windows?

    - by zylstra
    For the file example, I would like to delete all files matching .+?[a-f0-9]{4}.html (i.e. any html file ending in a four digit hexadecimal). So paged47c.html would be deleted, but page.html would remain. For the folder example, I would like to delete all folders matching .+?[A-Z]+ (i.e. any folder containing a capital letter). So some-folderSE93_89ds/ would be deleted, but some-folder/ would remain. I don't work much with the command line, but I could probably get an example involving "del" to work for me. Alternatively, is there a simple GUI program for Windows that would do this?

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  • Go - Concurrent method

    - by nevalu
    How to get a concurrent method? In my case, the library would be called from a program to get a value to each argument str --in method Get()--. When it's used Get() then it assigns a variable from type bytes.Buffer which it will have the value to return. The returned values --when it been concurrently called-- will be stored into a database or a file and it doesn't matter that its output been of FIFO way (from method). type test struct { foo uint8 bar uint8 } func NewTest(arg1 string) (*test, os.Error) {...} func (self *test) Get(str string) ([]byte, os.Error) { var format bytes.Buffer ... } I think that all code inner of method Get() should be put inner of go func() {...}(), and then to use a channel. Would there be a problem if it's called another method from Get()? Or would it also has to be concurrent?

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  • [PHP] Weird problem with dynamic method invocation

    - by Rolf
    Hi everyone, this time, I'm facing a really weird problem. I've the following code: $xml = simplexml_load_file($this->interception_file); foreach($xml->children() as $class) { $path = str_replace('__CLASS_DIR__',CLASS_DIR,$class['path']); if(!is_file($path)) { throw new Exception('Bad configuration: file '.$path.' not found'); } $className = pathinfo($path,PATHINFO_FILENAME); foreach($class as $method) { $method_name = $method['name']; $obj = new $className(); var_dump(in_array($method_name,get_class_methods($className)));exit; echo $obj->$method_name();### not a method ??? } } As you can see, I get the class name and method name from an XML file. I can create an instance of the class without any problem. The var_dump at the end returns true, that means $method_name (which has 2 optional parameters) is a method of $className. BUT, and I am pretty sure the syntax is correct, when I try: $obj-$method_name() I get: Fatal error: Method name must be a string If you have any ideas, pleaaaaase tell me :) Thanks in advance, Rolf

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  • When using method chaining, do I reuse the object or create one?

    - by MainMa
    When using method chaining like: var car = new Car().OfBrand(Brand.Ford).OfModel(12345).PaintedIn(Color.Silver).Create(); there may be two approaches: Reuse the same object, like this: public Car PaintedIn(Color color) { this.Color = color; return this; } Create a new object of type Car at every step, like this: public Car PaintedIn(Color color) { var car = new Car(this); // Clone the current object. car.Color = color; // Assign the values to the clone, not the original object. return car; } Is the first one wrong or it's rather a personal choice of the developer? I believe that he first approach may quickly cause the intuitive/misleading code. Example: // Create a car with neither color, nor model. var mercedes = new Car().OfBrand(Brand.MercedesBenz).PaintedIn(NeutralColor); // Create several cars based on the neutral car. var yellowCar = mercedes.PaintedIn(Color.Yellow).Create(); var specificModel = mercedes.OfModel(99).Create(); // Would `specificModel` car be yellow or of neutral color? How would you guess that if // `yellowCar` were in a separate method called somewhere else in code? Any thoughts?

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  • What is the most likely cause to a Blue Screen of Death when the user presses Ctrl-Alt-Delete?

    - by Jay
    My wife is experiencing this with her work laptop--she presses Ctrl-Alt-Delete to lock and she gets the BSOD. The first troubleshooting step is usually to "re-image", and it's locked down. So with this question, I am asking whether the behavior is unique enough that someone in the stack-universe knows exactly what this is (something I can tell her to tell her help desk support). Update: help desk said to order more RAM. Alt-tabbing caused the same behavior today. And...she learned that multiple users are affected. I'm not sure I'll be able to clean any additional info that will help w/ troubleshooting. I'll leave the question here for a bit and if an answer ends up being the actual solution, I'll accept it. If not, I think I should probably remove the question (i'll check meta). Update #2.5: The cause appears to be a ctrl-alt-delete keystroke while Sales Team Configurator is open. This can either be to lock the screen (there are workaround in answers already present) or to unlock the screen (no workaround for that).

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  • IntegrityError: foreign key violation upon delete

    - by Lukasz Korzybski
    I have Order and Shipment model. Shipment has a foreign key to Order. class Order(...): ... class Shipment() order = m.ForeignKey('Order') ... Now in one of my views I want do delete order object along with all related objects. So I invoke order.delete(). I have Django 1.0.4, PostgreSQL 8.4 and I use transaction middleware, so whole request is enclosed in single transaction. The problem is that upon order.delete() I get: ... File "/usr/local/lib/python2.6/dist-packages/django/db/backends/__init__.py", line 28, in _commit return self.connection.commit() IntegrityError: update or delete on table "main_order" violates foreign key constraint "main_shipment_order_id_fkey" on table "main_shipment" DETAIL: Key (id)=(45) is still referenced from table "main_shipment". I checked in connection.queries that proper queries are executed in proper order. First shipment is deleted, after that django executes delete on order row: {'time': '0.000', 'sql': 'DELETE FROM "main_shipment" WHERE "id" IN (17)'}, {'time': '0.000', 'sql': 'DELETE FROM "main_order" WHERE "id" IN (45)'} Foreign key have ON DELETE NO ACTION (default) and is initially deferred. I don't know why I get foreign key constraint violation. I also tried to register pre_delete signal and manually delete shipment objects before delete on order is called, but it resulted in the same error. I can change ON DELETE behaviour for this key in Postgres but it would be just a hack, I wonder if anyone has a better idea what's going on here. There is also a small detail, my Order model inherits from Cart model, so it actually doesn't have id field but cart_ptr_id and after DELETE on order is executed there is also DELETE on cart, but it seems unrelated? to the shipment-order problem so I simplified it in the example.

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  • Django IntegrityError: foreign key violation upon delete

    - by Lukasz Korzybski
    I have Order and Shipment model. Shipment has a foreign key to Order. class Order(...): ... class Shipment() order = m.ForeignKey('Order') ... Now in one of my views I want do delete order object along with all related objects. So I invoke order.delete(). I have Django 1.0.4, PostgreSQL 8.4 and I use transaction middleware, so whole request is enclosed in single transaction. The problem is that upon order.delete() I get: ... File "/usr/local/lib/python2.6/dist-packages/django/db/backends/__init__.py", line 28, in _commit return self.connection.commit() IntegrityError: update or delete on table "main_order" violates foreign key constraint "main_shipment_order_id_fkey" on table "main_shipment" DETAIL: Key (id)=(45) is still referenced from table "main_shipment". I checked in connection.queries that proper queries are executed in proper order. First shipment is deleted, after that django executes delete on order row: {'time': '0.000', 'sql': 'DELETE FROM "main_shipment" WHERE "id" IN (17)'}, {'time': '0.000', 'sql': 'DELETE FROM "main_order" WHERE "id" IN (45)'} Foreign key have ON DELETE NO ACTION (default) and is initially deferred. I don't know why I get foreign key constraint violation. I also tried to register pre_delete signal and manually delete shipment objects before delete on order is called, but it resulted in the same error. I can change ON DELETE behaviour for this key in Postgres but it would be just a hack, I wonder if anyone has a better idea what's going on here. There is also a small detail, my Order model inherits from Cart model, so it actually doesn't have id field but cart_ptr_id and after DELETE on order is executed there is also DELETE on cart, but it seems unrelated? to the shipment-order problem so I simplified it in the example.

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  • in python: can i pass class method as and a default argument to another class method

    - by alex
    i want to to pass class method as and a default argument to another class method, so that i can re-use the method as a @classmethod @classmethod class foo: def func1(self,x): do somthing; def func2(self, aFunc = self.func1): # make some a call to afunc afunc(4) this why when the method func2 is called within the class aFunc defaults to self.func1, but i can call this same function from outside of the class and pass it a different function at the input. i get NameError: name 'self' is not defined

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  • How to name a static factory method in the utility class?

    - by leventov
    I have an interface MyLongNameInterface with a counterpart utility class MyLongNameInterfaces. What is the best name for a static factory method in the utility class, which creates an instance of MyLongNameInterface? MyLongNameInterfaces.newInstance() -- a new instance of the utility class? MyLongNameInterfaces.newMyLongNameInterface() -- too verbose MyLongNameInterfaces.create() -- create an instance of the utility class? Also, create is not a widely used conventional verb in Java better option?

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  • How do I permanently delete e-mail messages in the sendmail queue and keep them from coming back?

    - by Steven Oxley
    I have a pretty annoying problem here. I have been testing an application and have created some test e-mails to bogus e-mail addresses (not to mention that my server isn't really set up to send e-mail anyway). Of course, sendmail is not able to send these messages and they have been getting stuck in the sendmail queue. I want to manually delete the messages that have been building up in the queue instead of waiting the 5 days that sendmail usually takes to stop retrying. I am using Ubuntu 10.04 and /var/spool/mqueue/ is the directory in which every how-to I have read says the e-mails that are queued up are kept. When I delete the files in this directory, sendmail stops trying to process the e-mails until what appears to be a cron script runs and re-populates this directory with the messages I don't want sent. Here are some lines from my syslog: Jun 2 17:35:19 sajo-laptop sm-mta[9367]: o530SlbK009365: to=, ctladdr= (33/33), delay=00:06:27, xdelay=00:06:22, mailer=esmtp, pri=120418, relay=e.mx.mail.yahoo.com. [67.195.168.230], dsn=4.0.0, stat=Deferred: Connection timed out with e.mx.mail.yahoo.com. Jun 2 17:35:48 sajo-laptop sm-mta[9149]: o4VHn3cw003597: to=, ctladdr= (33/33), delay=2+06:46:45, xdelay=00:34:12, mailer=esmtp, pri=3540649, relay=mx2.hotmail.com. [65.54.188.94], dsn=4.0.0, stat=Deferred: Connection timed out with mx2.hotmail.com. Jun 2 17:39:02 sajo-laptop CRON[9510]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -n 200 -r -0 rm) Jun 2 17:39:43 sajo-laptop sm-mta[9372]: o52LHK4s007585: to=, ctladdr= (33/33), delay=03:22:18, xdelay=00:06:28, mailer=esmtp, pri=1470404, relay=c.mx.mail.yahoo.com. [206.190.54.127], dsn=4.0.0, stat=Deferred: Connection timed out with c.mx.mail.yahoo.com. Jun 2 17:39:50 sajo-laptop sm-mta[9149]: o51I8ieV004377: to=, ctladdr= (33/33), delay=1+06:31:06, xdelay=00:03:57, mailer=esmtp, pri=6601668, relay=alt4.gmail-smtp-in.l.google.com. [74.125.79.114], dsn=4.0.0, stat=Deferred: Connection timed out with alt4.gmail-smtp-in.l.google.com. Jun 2 17:40:01 sajo-laptop CRON[9523]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Does anyone know how I can get rid of these messages permanently? As a side note, I'd also like to know if there is a way to set up sendmail to "fake" sending e-mail. Is there?

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  • Delete registry key or value via a CMD script?

    - by Derek
    How do I edit an already-in-production .cmd script file, in order to have the script delete a certain registry key in the Windows registry? Firstly, is this even possible, and secondly (if that's not possible), could I create a .reg file and execute that file from with the .cmd file? From within the .cmd script, it is not working: del "[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\CurrentVersion\SampleKey]" This method hasn't worked for me either: cmd "\\networkdrive\regfiles\deleteSampleKey.reg" Then from within the .reg file: Windows Registry Editor Version 5.00 [ -HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon ]

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  • call a class method from inside an instance method from a module mixin (rails)

    - by sean
    Curious how one would go about calling a class method from inside an instance method of a module which is included by an active record class. For example I want both user and client models to share the nuts and bolts of password encryption. # app/models class User < ActiveRecord::Base include Encrypt end class Client < ActiveRecord::Base include Encrypt end # app/models/shared/encrypt.rb module Encrypt def authenticate # I want to call the ClassMethods#encrypt_password method when @user.authenticate is run self.password_crypted == self.encrypt_password(self.password) end def self.included(base) base.extend ClassMethods end module ClassMethods def encrypt_password(password) Digest::SHA1.hexdigest(password) end end end However, this fails. Says that the class method cannot be found when the instance method calls it. I can call User.encrypt_password('password') but User.new.encrypt_password fails Any thoughts?

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