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• SElinux integrety check

  - by Alex

  How can i check (with SELinux) access to the file by process name? For examle: we have 2 process: * /usr/bin/foo1 * /usr/bin/foo2 They are run under account with username userA and try to open for modify file: /home/userA/test.txt I want that if foo1 try to open file - it's ok. But if foo2 try to open this file - i have message about this in /var/log Problem is that both processes have the same user ID. And i cant use RBAC by username.

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• What is the difference between printf() and puts() in C?

  - by alex

  First up, I should let you know that I am learning C, so my apologies if this question seems stupid to a more advanced developer. I know you can print with printf() and puts(). I can also see that printf() allows you to embed variables inside and do some stuff like formatting. Is puts() merely a primitive version of printf(). Should it be used for every possible printf() without string interpolation? Thanks

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• I want to extend std::string, but not for the reason you might think.

  - by Alex

  I have a method that effectively takes a string. However, there is a very limited subset of strings I want to use. I was thinking of typedef'ing std::string as some class, and call the functions explicit. I'm not sure that would work, however. Ideas?

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• In Django/python, how do I set the memcache to infinite time?

  - by alex

  cache.set(key, value, 9999999) But this is not infinite time...

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• Translate sequence in macro parameters to separate macros

  - by Alex Tiger

  How to acces each element in macro if the definition is like MACRO(name, seq) and the code is like: MACRO("TheName", (Elem1) (Elem2) (Elem3) ) I want to generate the next code: MACRO("TheName", ELEMMACRO(Elem1) ELEMMACRO(Elem2) ELEMMACRO(Elem3) ) Or something like that. In other words, I want to process every parameter separately (I don't care of definition, even if it will be something like MACRO("TheName", Elem1, Elem2, Elem3 ) There could be more elements, there could be less. I have tried V_ARGS (I need it only for gcc), but I can only copy all the elements by that, not to process them separately. What can I do? P.S. Because of some reasons, I can't use Boost.

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• Remove a character from a given position on Oracle

  - by alex

  Is there anyway to remove a character from a given position? Let's say my word is: PANCAKES And I want to remove the 2nd letter (in this case, 'A'), so i want PNCAKES as my return. Translate doesnt work for this. Replace doesnt work for this. Regex is damn complicated... Ideas?

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• DELETE and ACCESS

  - by Alex

  Where is the error in this statement? query = "DELETE TOP 10 FROM table WHERE field LIKE \"something*\"" I get an error on the query sytax. Thanks.

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• endpoints (bug?) behavior in xts

  - by Alex

  If I try to get endpoints for every year, for example, and do the following: xts.data <- xts(1:10000, order.by=seq(from=as.Date("1970-01-01"), by=1, len=10000)) z <- endpoints(xts.data, on="months", k=12) The return value for this is: > z [1] 0 10000 Same with numbers higher than 12. Why would xts simply not return indices of every year or 13th month starting from the beginning. Is it limited by the number of periods in a year? That is if i did: z <- endpoints(xts.data, on="weeks", k=54) This seems to work fine.

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• Double "!!" in Ruby [closed]

  - by Alex Maslakov

  Possible Duplicate: What does !! mean in ruby? Ruby, !! operator (a/k/a the double-bang) Sometimes I see a Ruby code like this def sent? !!@sent_at end It seems to be not logical. Is it necessary to use here double !? As far as I'm concerned, it might be just def sent? @sent_at end UPDATE: then what is the difference between these def sent? !!@sent_at end def sent? @sent_at.nil? end def sent? @sent_at == nil end

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• What web framework uses "javascript:__doPostBack()"

  - by alex

  I've seen this all over the web javascript:__doPostBack('ctl00$ContentPlaceHolder1$lnk2','') Checking headers of the last place I saw it didn't reveal a server side language. What server side language and/or framework encourages this style of link?

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• Get page url using javascript

  - by Alex

  Hello, could some one recommend a way to get page name from a url using JavaScript? For instance if I have http://www.cnn.com/news/1234/news.html?a=1&b=2&c=3 I just need to get "news.html" string Thanks!

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• How do I replace everything with one? (in a string) In Pythong

  - by alex

  Suppose I have this: My---sun--is------very-big---. I want to replace all multiple hyphens with just one hyphen.

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• What is most efficient way of setting row to zeros for a sparce scipy matrix?

  - by Alex Reinking

  I'm trying to convert the following MATLAB code to Python and am having trouble finding a solution that works in any reasonable amount of time. M = diag(sum(a)) - a; where = vertcat(in, out); M(where,:) = 0; M(where,where) = 1; Here, a is a sparse matrix and where is a vector (as are in/out). The solution I have using Python is: M = scipy.sparse.diags([degs], [0]) - A where = numpy.hstack((inVs, outVs)).astype(int) M = scipy.sparse.lil_matrix(M) M[where, :] = 0 # This is the slowest line M[where, where] = 1 M = scipy.sparse.csc_matrix(M) But since A is 334863x334863, this takes like three minutes. If anyone has any suggestions on how to make this faster, please contribute them! For comparison, MATLAB does this same step imperceptibly fast. Thanks!

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• How do I merge dictionaries together in Python?

  - by alex

  d3 = dict(d1, **d2) I understand that this merges the dictionary. But, is it unique? What if d1 has the same key as d2 but different value? I would like d1 and d2 to be merged, but d1 has priority if there is duplicate key.

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• How to get ordered qty of product in front-end?

  - by alex

  I display a best-sell list in front-end,Now I also want to show the QTY that how many already sell for this product,How do I get the QTY ? And if the product is a "Configurable Product",How do I get the QTY ?

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• What charectar range would this represent (regular expression)?

  - by Alex

  Recently I came across a character range that was the following: [/-+] My very simple question is, is this even a valid charectar range? If so, what range of charectars would it match?

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• Java / MySQL - How to access connection from another class?

  - by Alex

  I'm just getting my head around java (and OOP for that matter), the only thing I am familiar with is MySQL. I need to keep the DB connection open throughout the duration of the application, as well as a server socket. I'm not even sure if they both need separate classes, but here's what I have so far: http://pastebin.com/qzMFFTrY (it wouldn't all go in a code tag) The variable I need is con for line 86.

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• How do I send this email in Python, opening files and stuff?

  - by alex

  msg = EmailMessage(subject, body, from_email, [to_email]) msg.content_subtype = "html" msg.send() This is how I send an email in Django. But what if I want to open a text file and take into account all its line breaks and tabs. I want to take the body of the text file (with line breaks \n) and email it as text of the "body".

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• How Similar are Java, C#, and Python?

  - by Alex

  I know it is a kind of broad question but any answer are appreciated.

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• What is (self) in the python code? (OOP question)

  - by alex

  class MyController(BaseController): def index(self): # Return a rendered template #return render('/test.mako') # or, return a response return '' Why does the function "index" have "self"? I got this code from Pylons controller

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• What tool do you use to export/import groups and user IDs on Windows servers?

  - by Alex

  Hi. What's a free tool to export the groups and users on a Windows server and then import them again on a rebuilt system? Thanks.

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• Help with manipulating some strings.

  - by Alex

  My strings are of this kind: City (PR) from a Database, where PR stands for Province. At the end I want two separate variables. City and PR. I have to do this with C#. Any idea? Thanks.

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• Ubuntu 10.10, taskbar

  - by Alex

  I launched system monitor to kill one program, which didn't responded on any mouse clicks, etc. But i occasionally killed another process. so, taskbar was killed. (it was in the bottom of the screen, in the top all is good) reboot didnt help o_O. Now I use Alt-Tab and alt-controll-arrows to switch between programs and desktops (it works). How to launch taskbar again? its very strange that reboot didnt help me.

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• Select <a> which is the second <a> on a page that contains the same href text? jQuery

  - by Alex

  Hello there, I'm working with a page that has several links that contain the same href text, and I need to select the second anchor element on the page that contains said href text. Here's a simplified version of the link structure of the page: <a href="same/link/to/stuff/">same link</a> <a href="same/link/to/stuff/">same link</a> How do I fashion my selector so that it only selects the second anchor in the above example? Currently I'm trying: $('a[href=same/link/to/stuff/] :eq(1)') but it is not working. Thanks!!

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• How can I create a <a href=> to facebook and share a message?

  - by alex

  I don't want to share my PAGE, but I want to share a message with a short URL link to something.

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