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• How to install PHP-FPM and PHP on Ubuntu?

  - by Sanoj

  I have problems with installing PHP and in Ubuntu. I followed the instructions on the PHP-FPM site, PHP FastCGI Process Manager but when doing ../configure && make to compile PHP I got a lot of not found messages (listed below), and I don't know how to fix them. I tried both the Integrated compilation and Separate compilation but both compilations ends up with the same messages. Is there a solution or workaround? An alternativ way to install PHP with PHP-FPM? ../configure: 11986: ac_fn_c_check_func: not found ../configure: 11997: ac_fn_c_check_func: not found ../configure: 12147: 5: Bad file descriptor ../configure: 12147: :: checking for socket in -lsocket: not found ../configure: 12147: 6: Bad file descriptor ../configure: 12147: checking for socket in -lsocket... : not found cat: confdefs.h: No such file or directory ../configure: 12147: ac_fn_c_try_link: not found ../configure: 12147: 5: Bad file descriptor ../configure: 12147: :: result: no: not found ../configure: 12147: 6: Bad file descriptor ../configure: 12147: no: not found ../configure: 12147: 5: Bad file descriptor ../configure: 12147: :: checking for __socket in -lsocket: not found ../configure: 12147: 6: Bad file descriptor ../configure: 12147: checking for __socket in -lsocket... : not found cat: confdefs.h: No such file or directory ../configure: 12147: ac_fn_c_try_link: not found ../configure: 12147: 5: Bad file descriptor ../configure: 12147: :: result: no: not found ../configure: 12147: 6: Bad file descriptor ../configure: 12147: no: not found ../configure: 12154: ac_fn_c_check_func: not found ../configure: 12165: ac_fn_c_check_func: not found ../configure: 12315: 5: Bad file descriptor ../configure: 12315: :: checking for socketpair in -lsocket: not found ../configure: 12315: 6: Bad file descriptor ../configure: 12315: checking for socketpair in -lsocket... : not found cat: confdefs.h: No such file or directory ../configure: 12315: ac_fn_c_try_link: not found ../configure: 12315: 5: Bad file descriptor ../configure: 12315: :: result: no: not found ../configure: 12315: 6: Bad file descriptor ../configure: 12315: no: not found ../configure: 12315: 5: Bad file descriptor ../configure: 12315: :: checking for __socketpair in -lsocket: not found ../configure: 12315: 6: Bad file descriptor ../configure: 12315: checking for __socketpair in -lsocket... : not found cat: confdefs.h: No such file or directory ../configure: 12315: ac_fn_c_try_link: not found ../configure: 12315: 5: Bad file descriptor ../configure: 12315: :: result: no: not found ../configure: 12315: 6: Bad file descriptor ../configure: 12315: no: not found ../configure: 12322: ac_fn_c_check_func: not found ../configure: 12333: ac_fn_c_check_func: not found ../configure: 12483: 5: Bad file descriptor ../configure: 12483: :: checking for htonl in -lsocket: not found ../configure: 12483: 6: Bad file descriptor ../configure: 12483: checking for htonl in -lsocket... : not found cat: confdefs.h: No such file or directory ../configure: 12483: ac_fn_c_try_link: not found ../configure: 12483: 5: Bad file descriptor ../configure: 12483: :: result: no: not found ../configure: 12483: 6: Bad file descriptor ../configure: 12483: no: not found ../configure: 12483: 5: Bad file descriptor ../configure: 12483: :: checking for __htonl in -lsocket: not found ../configure: 12483: 6: Bad file descriptor ../configure: 12483: checking for __htonl in -lsocket... : not found cat: confdefs.h: No such file or directory ../configure: 12483: ac_fn_c_try_link: not found ../configure: 12483: 5: Bad file descriptor ../configure: 12483: :: result: no: not found ../configure: 12483: 6: Bad file descriptor ../configure: 12483: no: not found ../configure: 12490: ac_fn_c_check_func: not found ../configure: 12501: ac_fn_c_check_func: not found ../configure: 12651: 5: Bad file descriptor ../configure: 12651: :: checking for gethostname in -lnsl: not found ../configure: 12651: 6: Bad file descriptor ../configure: 12651: checking for gethostname in -lnsl... : not found cat: confdefs.h: No such file or directory ../configure: 12651: ac_fn_c_try_link: not found ../configure: 12651: 5: Bad file descriptor ../configure: 12651: :: result: no: not found ../configure: 12651: 6: Bad file descriptor ../configure: 12651: no: not found ../configure: 12651: 5: Bad file descriptor ../configure: 12651: :: checking for __gethostname in -lnsl: not found ../configure: 12651: 6: Bad file descriptor ../configure: 12651: checking for __gethostname in -lnsl... : not found cat: confdefs.h: No such file or directory ../configure: 12651: ac_fn_c_try_link: not found ../configure: 12651: 5: Bad file descriptor ../configure: 12651: :: result: no: not found ../configure: 12651: 6: Bad file descriptor ../configure: 12651: no: not found ../configure: 12658: ac_fn_c_check_func: not found ../configure: 12669: ac_fn_c_check_func: not found ../configure: 12819: 5: Bad file descriptor ../configure: 12819: :: checking for gethostbyaddr in -lnsl: not found ../configure: 12819: 6: Bad file descriptor ../configure: 12819: checking for gethostbyaddr in -lnsl... : not found cat: confdefs.h: No such file or directory ../configure: 12819: ac_fn_c_try_link: not found ../configure: 12819: 5: Bad file descriptor ../configure: 12819: :: result: no: not found ../configure: 12819: 6: Bad file descriptor ../configure: 12819: no: not found ../configure: 12819: 5: Bad file descriptor ../configure: 12819: :: checking for __gethostbyaddr in -lnsl: not found ../configure: 12819: 6: Bad file descriptor ../configure: 12819: checking for __gethostbyaddr in -lnsl... : not found cat: confdefs.h: No such file or directory ../configure: 12819: ac_fn_c_try_link: not found ../configure: 12819: 5: Bad file descriptor ../configure: 12819: :: result: no: not found ../configure: 12819: 6: Bad file descriptor ../configure: 12819: no: not found ../configure: 12826: ac_fn_c_check_func: not found ../configure: 12837: ac_fn_c_check_func: not found ../configure: 12987: 5: Bad file descriptor ../configure: 12987: :: checking for yp_get_default_domain in -lnsl: not found ../configure: 12987: 6: Bad file descriptor ../configure: 12987: checking for yp_get_default_domain in -lnsl... : not found cat: confdefs.h: No such file or directory ../configure: 12987: ac_fn_c_try_link: not found ../configure: 12987: 5: Bad file descriptor ../configure: 12987: :: result: no: not found ../configure: 12987: 6: Bad file descriptor ../configure: 12987: no: not found ../configure: 12987: 5: Bad file descriptor ../configure: 12987: :: checking for __yp_get_default_domain in -lnsl: not found ../configure: 12987: 6: Bad file descriptor ../configure: 12987: checking for __yp_get_default_domain in -lnsl... : not found cat: confdefs.h: No such file or directory ../configure: 12987: ac_fn_c_try_link: not found ../configure: 12987: 5: Bad file descriptor ../configure: 12987: :: result: no: not found ../configure: 12987: 6: Bad file descriptor ../configure: 12987: no: not found ../configure: 12995: ac_fn_c_check_func: not found ../configure: 13006: ac_fn_c_check_func: not found ../configure: 13156: 5: Bad file descriptor ../configure: 13156: :: checking for dlopen in -ldl: not found ../configure: 13156: 6: Bad file descriptor ../configure: 13156: checking for dlopen in -ldl... : not found cat: confdefs.h: No such file or directory ../configure: 13156: ac_fn_c_try_link: not found ../configure: 13156: 5: Bad file descriptor ../configure: 13156: :: result: no: not found ../configure: 13156: 6: Bad file descriptor ../configure: 13156: no: not found ../configure: 13156: 5: Bad file descriptor ../configure: 13156: :: checking for __dlopen in -ldl: not found ../configure: 13156: 6: Bad file descriptor ../configure: 13156: checking for __dlopen in -ldl... : not found cat: confdefs.h: No such file or directory ../configure: 13156: ac_fn_c_try_link: not found ../configure: 13156: 5: Bad file descriptor ../configure: 13156: :: result: no: not found ../configure: 13156: 6: Bad file descriptor ../configure: 13156: no: not found ../configure: 13164: 5: Bad file descriptor ../configure: 13164: :: checking for sin in -lm: not found ../configure: 13164: 6: Bad file descriptor ../configure: 13164: checking for sin in -lm... : not found cat: confdefs.h: No such file or directory ../configure: 13196: ac_fn_c_try_link: not found ../configure: 13198: 5: Bad file descriptor ../configure: 13198: :: result: no: not found ../configure: 13198: 6: Bad file descriptor ../configure: 13198: no: not found ../configure: 13214: ac_fn_c_check_func: not found ../configure: 13225: ac_fn_c_check_func: not found ../configure: 13510: 5: Bad file descriptor ../configure: 13510: :: checking for inet_aton in -lresolv: not found ../configure: 13510: 6: Bad file descriptor ../configure: 13510: checking for inet_aton in -lresolv... : not found cat: confdefs.h: No such file or directory ../configure: 13510: ac_fn_c_try_link: not found ../configure: 13510: 5: Bad file descriptor ../configure: 13510: :: result: no: not found ../configure: 13510: 6: Bad file descriptor ../configure: 13510: no: not found ../configure: 13510: 5: Bad file descriptor ../configure: 13510: :: checking for __inet_aton in -lresolv: not found ../configure: 13510: 6: Bad file descriptor ../configure: 13510: checking for __inet_aton in -lresolv... : not found cat: confdefs.h: No such file or directory ../configure: 13510: ac_fn_c_try_link: not found ../configure: 13510: 5: Bad file descriptor ../configure: 13510: :: result: no: not found ../configure: 13510: 6: Bad file descriptor ../configure: 13510: no: not found ../configure: 13510: 5: Bad file descriptor ../configure: 13510: :: checking for inet_aton in -lbind: not found ../configure: 13510: 6: Bad file descriptor ../configure: 13510: checking for inet_aton in -lbind... : not found cat: confdefs.h: No such file or directory ../configure: 13510: ac_fn_c_try_link: not found ../configure: 13510: 5: Bad file descriptor ../configure: 13510: :: result: no: not found ../configure: 13510: 6: Bad file descriptor ../configure: 13510: no: not found ../configure: 13510: 5: Bad file descriptor ../configure: 13510: :: checking for __inet_aton in -lbind: not found ../configure: 13510: 6: Bad file descriptor ../configure: 13510: checking for __inet_aton in -lbind... : not found cat: confdefs.h: No such file or directory ../configure: 13510: ac_fn_c_try_link: not found ../configure: 13510: 5: Bad file descriptor ../configure: 13510: :: result: no: not found ../configure: 13510: 6: Bad file descriptor ../configure: 13510: no: not found ../configure: 13516: 5: Bad file descriptor ../configure: 13516: :: checking for ANSI C header files: not found ../configure: 13516: 6: Bad file descriptor ../configure: 13516: checking for ANSI C header files... : not found cat: confdefs.h: No such file or directory ../configure: 13615: ac_fn_c_try_compile: not found ../configure: 13617: 5: Bad file descriptor ../configure: 13617: :: result: no: not found ../configure: 13617: 6: Bad file descriptor ../configure: 13617: no: not found ../configure: 13665: ac_cv_header_dirent_dirent.h: not found ../configure: 13665: 5: Bad file descriptor ../configure: 13665: :: checking for dirent.h that defines DIR: not found ../configure: 13665: 6: Bad file descriptor ../configure: 13665: checking for dirent.h that defines DIR... : not found eval: 1: Bad substitution

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• File Sharing: User-created folders are read-only to others on Mac 10.6 Server

  - by Anriëtte Combrink

  Hi there We recently got a new Mac Mini Server with 10.6 Server on it. It has two 500GB volumes, one of which [Macintosh HD2 the extra one other than the boot disk] we are using to share our work files. I have added a user account for each user in the Users pane on Server Preferences, and all our staff (users added to the system) are added to a new group, called toolboxstaff. Now, when a user creates a new folder on this volume, folders are created with read-only access for everyone else besides the owner. How do I set it that when a user creates a folder, it creates it with RW access for the toolboxstaff group? Thanks in advance.

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• jQuery input mask length

  - by Tim

  Hey all, I have an input field and I want to limit it to alphanumerical (A-Z, a-z, 0-9) characters only, with a MINIMUM field length of 5, and a maximum length of up to 15 characters total. Does anyone know how I can do this using jQuery? I'm trying to use the jQuery input mask by digitalBush - http://digitalbush.com/projects/masked-input-plugin/ The problem is that UNLESS I enter 15 characters, the field goes blank. If I enter "012345678912345" (15 characters) in the input field then the value is stored and it's fine. But if I enter "12345" as a username, when that input box loses focus its value goes back to being blank. Is there something that I can change in the "definitions" or options somewhere that fixes this? Many thanks for your help :) Tim

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• Put text input inside label for radio button?

  - by Martijn

  I'm trying to make a radio group specifying a bunch of options, and an extra option "other" with a text input to specify. The code for this particular radio button I'm using is <input type='radio' name='RadioInput' value='Other' id='RadioInput_Other' /> <label for='RadioInput_Other'>Ohter: <input type='text' name='RadioInput_Other_Value' id='RadioInput_Other_Value' value='' /> </label> The idea is that if you give focus to the text input, the radio button corresponding to it is selected. The code above almost does this (since the text input is inside the label). However, it also shifts focus to the radio button (which is annoying, since whatever you type next is lost). Is there any way to prevent this using XHTML1.0 / CSS2? Preferably without using javascript.

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• Want to bind an input field to a jquery-ui slider handle

  - by BFTrick

  hello, I want to bind an input field to the jquery-ui slider handle. So whenever one value changes I want the other value to also change. Ex: if someone types 1000 into the minimum value input field I want the lower slider handle to move to the 1000 mark. Also if the user drags the lower slider handle to 1000 the input field should reflect that. Making the slider reflect the changes in the input field is easy: $(minYearInput).blur(function () { $("#yearSlider").slider("values", 0, parseInt($(this).val())); }); $(maxYearInput).blur(function () { $("#yearSlider").slider("values", 1, parseInt($(this).val())); }); I just need help making the text fields mimic the slider. $("#yearSlider").slider({ range: true, min: 1994, max: 2011, step: 1, values: [ 1994 , 2011 ], slide: function(event, ui) { //what goes here? } }); Any ideas? A similar question from this site: http://stackoverflow.com/questions/1330008/jquery-ui-slider-input-a-value-and-slider-move-to-location

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• Cross Browser input field width stylization

  - by Derek Adair

  Hi, I have a shipping/billing input form and I'm having trouble styling the input fields to be the same width... Here is a link (click one of the order bottles to go to the checkout page which contains the form) The Problem: -a field <input type="text" size="X" /> appears to render with different sizes in different browsers (see link). -In addition, select fields seem to render on a differently as well. -Chrome/safari do not seem to respond to the font-size property for select fields. Any guidance on how to stylize the size of text-input and select fields cross-browser would be oh so very helpful. Must I result to having a different sytlesheet for each browser... just for these input fields? -thanks

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• "Intercepting" user input into text box and removing it

  - by James P

  I have a text box that I would like to do some validation on. At the moment I have this code: function updateChanger() { // Validate input var likeMessage = validateInput($("#like").val()); alert(likeMessage); } function validateInput(input) { input = input.replace(/[^a-zA-Z0-9:\(\/\)\s\.,!~]/g, ""); return input; } This successfully trims out unwanted characters in the likeMessage variable, but the character still gets entered into the text box. I would like to stop that from happening. I know it will have something to do with $("#like").val() but the only thing I can think of is just chopping off the end character from the text box value, would this suffice? Thanks for any help!

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• C input loop for shell

  - by AustinM

  So I'm working on creating a very simple C program that just preforms shell commands. This is what I have so far: #include <stdio.h> int main() { char input[30]; fputs("$ ", stdout); fflush(stdout); fgets(input, sizeof input, stdin); system(input); } It works, but only for one command. For example if I compile and type ./cmd I get the $ prompt. If I type ls I get what I'm supposed to get. But then it exits and goes back to the regular system shell. How can I make it so after the user types a command it goes back to the "$" input.

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• jQuery Mobile focus next input on keypress

  - by user738175

  I have a jquery mobile site with a html form consisting of 4 pin entry input boxes. I want the user to be able to enter a pin in each input field without having to press the iphone keyboards "next" button. I have tried the following and although it appears to set the focus to the second input and insert the value, the keyboard disappears so the user still has to activate the required input with a tap event. $('#txtPin1').keypress(function() { $('#txtPin1').bind('change', function(){ $("#txtPin1").val($("#txtPin1").val()); }); $("#txtPin2").focus(); $("#txtPin2").val('pin2'); }); Is there a different event that I should be assigning to $("#txtPin2")? I have tried to implement http://jqueryminute.com/set-focus-to-the-next-input-field-with-jquery/ this also, but I found that it worked for android and not for iphone. Any help is greatly appreciate it.

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• Realtek HD Audio 5.1 Optical Input (from Xbox 360)

  - by Shevek

  I'm trying to connect up my Xbox 360 digital audio to my 5.1 speakers via my PC (my LCD has dual input, DVI for the PC, D-SUB for the Xbox). The motherboard has a Realtek ALC888 chipset and I have a 5.1 speaker system connected via 3 x 3.5mm jacks (FR/FL, RR/RL, C/LFE) and I get full 5.1 output from the PC. I have connected the optical audio cable from the Xbox to the Optical In on the motherboard's backplate. With the Xbox in Digital Stereo mode I get 2 channel audio from the Xbox, through the PC, to the speakers. With the Xbox in Dolby Digital 5.1 mode I get no sound at all. I have the latest Realtek drivers installed in Win 7 32-bit. Questions: Is it possible to use the full 5.1 DD from the Xbox? If so, am I missing some option(s) in the Realtek setup? Do I need some other piece of software to do this? (AC3Filter or FFDShow perhaps) Many thanks

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• fcgiwrap listening to a unix socket file: how to change file permissions

  - by user36520

  I have a web server (nginx) and a CGI application (gitweb) that is ran with fcgiwrap to enable Fast CGI access to it. I want the Fast CGI protocol to take place over a unix socket file. To start the fcgiwrap daemon, I run: setuidgid git fcgiwrap -s "unix:$PWD/fastcgi.sock" (this is a daemontools daemon) The problem is that my web server runs as the user www-data and not the user git. And fcgiwrap creates the socket fastcgi.sock with user git, group git and read only fort the non owner. Thus, nginc with the user www-data can't access the socket. Apparently, fcgiwrap is not able to select permissions of unix socket files. And this is quite annoying. Moreover, if I manage to have the socket file exists before I run fcgiwrap (which is quite difficult given I did not find any shell command to create a socket file), it quits with the following error: Failed to bind: Address already in use The only solution I found is to start the server the following way: rm -f fastcgi.sock # Ensure that the socket doesn't already exists (sleep 5; chgrp www-data fastcgi.sock; chmod g+w fastcgi.sock) & exec setuidgid git fcgiwrap -s "unix:$PWD/fastcgi.sock" Which is far from the most elegant solution. Can you think of anything better ? Thanks

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• Nautilus and file command in 11.04 don't show metadata for WebM files

  - by Pili

  The file-name extension .webm is used for media files using the WebM multimedia format, which consists of the WebM container (a subset of the Matroska container) and audio and video streams with independet enconding and quality settings. Description of the issue: For files in the WebM format, the program file says that files are raw data, instead of determining and displaying the real file-format, which is WebM. Besides, Nautilus doesn't display the technical metadata of files in this format. Why is the file program not displaying the file format for WebM files?

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• Choice of Input / music / graphics libraries for an indie game - what factors should I consider?

  - by RusselMeMan

  I was wondering which tools (grapics-sound-input libraries, game engine libraries) that the following indie games used: Braid Superbrothers: S&S Super Meat Boy Limbo Fez (I know this one is XNA) Also, what is in common use in production games? My guess for game development in C++ is: -DirectX is most common for  Windows games -SDL or SDL+OpenGL is most common for  Linux games -OpenGL + Apple APIs are most common for OSX development What do most indie game projects use? If I wanted to casually build my own game for fun in C++ with the idea of possibly releasing it to Steam or something someday, is there anything I should be concerned about if I make it with DirectX for music/sound/input and build my own game engine? Thanks!

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• Audio input problem in Ubuntu 9.10

  - by Andrea Ambu

  My audio input is a mix of my mic output and my sound card output. I'd like it to be just my mic output. I was able to do so in Ubuntu 9.04 but the interface is 9.10 is totally changed and I tried every my creativity was able to think. It's really annoying when talking to other people over the internet because they keep hearing their voice back. I'm not sure I explained it in clear way so I'll give you an example: What I do: I put an mp3 on play or a video on youtube then open a recorder and start to talk on my mic. What happens: both my voice and audio from mp3/youtube get reordered, even if I put headphones volume to 0 (via hardware). What I'd like to happen: Only my voice should be recorded. I'm sure I'm missing some technical term, but that's the problem and I'd like to solve it in Ubuntu 9.10, any idea?

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• How to add extensions to a lot of files using content of each file?

  - by v8media

  I've got over 10,000 files that don't have extensions from older versions of the Mac OS. They're extremely nested, and they also have all sorts of strange formatting and characters. They don't have file types or creator codes attached to them any longer. A great deal of these files have text in the file that will let me determine extensions (for example Word.Document.8 is in every file created by that version of Word, and Excel.Sheet.8 in every file created with that version of Excel). I found a script that looks like it would work for one of these file types at a time, but it erases parts of filenames after nefarious characters, which is not good. find . -type f -not -name "." -print0 |\ xargs -0 file |\ grep 'Word.Document.8' |\ sed 's/:.*//' |\ xargs -I % echo mv % %.doc So, two questions from that: One is, should I clean the characters in the filenames first, or programmatically deal with those in the script in order to leave them the same? As long as I lose no information from the filenames, I don't see a problem cleaning out slashes and other problem characters. Also, if I clean the filenames, there are likely to be duplicates, so any cleaning script would have to add something like "-1" before the extension to make sure nothing gets lost. 2nd question is how do I change the script so that it will look for more than one file type at the same time and give each the proper extension? I'm not tied to this script, but it is understandable, which is a pro. Mac OS X 10.6 is installed on this file server, but I've got access to any recent versions of OS X. Thanks, Ian

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• An alternative to reading input from Java's System.in

  - by dvanaria

  I’m working on the UVa Online Judge problem set archive as a way to practice Java, and as a way to practice data structures and algorithms in general. They give an example input file to submit to the online judge to use as a starting point (it’s the solution to problem 100). Input from the standard input stream (java.lang.System.in) is required as part of any solution on this site, but I can’t understand the implementation of reading from System.in they give in their example solution. It’s true that the input file could consist of any variation of integers, strings, etc, but every solution program requires reading basic lines of text input from System.in, one line at a time. There has to be a better (simpler and more robust) method of gathering data from the standard input stream in Java than this: public static String readLn(int maxLg) { byte lin[] = new byte[maxLg]; int lg = 0, car = -1; String line = “”; try { while (lg < maxLg) { car = System.in.read(); if ((car < 0) || (car == ‘\n’)) { break; } lin[lg++] += car; } } catch (java.io.IOException e) { return (null); } if ((car < 0) && (lg == 0)) { return (null); // eof } return (new String(lin, 0, lg)); } I’m really surprised by this. It looks like something pulled directly from K&R’s “C Programming Language” (a great book regardless), minus the access level modifer and exception handling, etc. Even though I understand the implementation, it just seems like it was written by a C programmer and bypasses most of Java’s object oriented nature. Isn’t there a better way to do this, using the StringTokenizer class or maybe using the split method of String or the java.util.regex package instead?

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• Python file-io code listing current folder path instead of the specified

  - by Tom Brito

  I have the code: import os import sys fileList = os.listdir(sys.argv[1]) for file in fileList: if os.path.isfile(file): print "File >> " + os.path.abspath(file) else: print "Dir >> " + os.path.abspath(file) Located in my music folder ("/home/tom/Music") When I call it with: python test.py "/tmp" I expected it to list my "/tmp" files and folders with the full path. But it printed lines like: Dir >> /home/tom/Music/seahorse-gw2jNn Dir >> /home/tom/Music/FlashXX9kV847 Dir >> /home/tom/Music/pulse-DcIEoxW5h2gz This is, the correct file names, but the wrong path (and this files are not either in my Music folder).. What's wrong with this code?

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• How to know file type without extension

  - by Ayusman

  While trying to come-up with a servlet based application to read files and manipulate them (image type conversion) here is a question that came up to me: Is it possible to inspect a file content and know the filetype? Is there a standard that specifies that each file MUST provide some type of marker in their content so that the application will not have to rely on the file extension constraints? Consider an application scenario: I am creating an application that will be able to convert different file formats to a set of output formats. Say user uploads an PDF, my application can suggest that the possible conversion formats are microsoft word or TIFF or JPEG etc. As my application will gradually support different file formats (over a period of time), I want my application to inspect the input file instead of having the user to specify the format. And suggest to user the possible formats of output. I understand this is an open ended, broad question. Please let me know if it needs to be modified. Thanks, Ayusman

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• Update Input Value With jQuery, Old Value Submitted to Form

  - by Tyler DeWitt

  I've got a form with an input with id/name league_id <form accept-charset="UTF-8" action="/user" method="post"><div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="?"><input name="authenticity_token" type="hidden" value="bb92urX83ivxOZZJzWLJMcr5ZSuamowO9O9Sxh5gqKo="></div> <input id="league_id" name="league_id" type="text" value="11"> <select class="sport_selector" id="sport_type_id" name="sport_type_id"><option value="5" selected="selected">Football</option> <option value="25">Women's Soccer</option> <option value="30">Volleyball</option> <option value="10">Men's Soccer</option></select> <input name="commit" type="submit" value="Save changes"> </form> In another part of my page, I have a drop down that, when changed, clears the value of league_id $("#sport_type_id").change -> $("#league_id").val(null) $(this).parents('form:first').submit() If I debug this page, I can see the value get wiped from the text box, but when the form is submitted, my controller always gets the old value. I tried changing the name of the input and got the same results.

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• Read a file to multiple array byte[]

  - by hankol

  I have an encryption algorithm (AES) that accepts file converted to array byte and encrypt it. Since I am going to process a very big size files, the JVM may go out of memory. I am planing to read the files in multiple array byte. each containing some part of the file. Then I teratively feed the algorithm. Finally merge them to produce encrypted file. So my question is: there any way to read a file part by part to multiple array byte? I thought I can use the following to read the file to array byte: IOUtils.toByteArray(InputStream input). And then split the array into multiple bytes using: Arrays.copyOfRange(). But I am afraid that the first code that reads file to byte will make the JVM to go out of memory. any suggestion please ? thanks

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• VFS: file-max limit 1231582 reached

  - by Rick Koshi

  I'm running a Linux 2.6.36 kernel, and I'm seeing some random errors. Things like ls: error while loading shared libraries: libpthread.so.0: cannot open shared object file: Error 23 Yes, my system can't consistently run an 'ls' command. :( I note several errors in my dmesg output: # dmesg | tail [2808967.543203] EXT4-fs (sda3): re-mounted. Opts: (null) [2837776.220605] xv[14450] general protection ip:7f20c20c6ac6 sp:7fff3641b368 error:0 in libpng14.so.14.4.0[7f20c20a9000+29000] [4931344.685302] EXT4-fs (md16): re-mounted. Opts: (null) [4982666.631444] VFS: file-max limit 1231582 reached [4982666.764240] VFS: file-max limit 1231582 reached [4982767.360574] VFS: file-max limit 1231582 reached [4982901.904628] VFS: file-max limit 1231582 reached [4982964.930556] VFS: file-max limit 1231582 reached [4982966.352170] VFS: file-max limit 1231582 reached [4982966.649195] top[31095]: segfault at 14 ip 00007fd6ace42700 sp 00007fff20746530 error 6 in libproc-3.2.8.so[7fd6ace3b000+e000] Obviously, the file-max errors look suspicious, being clustered together and recent. # cat /proc/sys/fs/file-max 1231582 # cat /proc/sys/fs/file-nr 1231712 0 1231582 That also looks a bit odd to me, but the thing is, there's no way I have 1.2 million files open on this system. I'm the only one using it, and it's not visible to anyone outside the local network. # lsof | wc 16046 148253 1882901 # ps -ef | wc 574 6104 44260 I saw some documentation saying: file-max & file-nr: The kernel allocates file handles dynamically, but as yet it doesn't free them again. The value in file-max denotes the maximum number of file- handles that the Linux kernel will allocate. When you get lots of error messages about running out of file handles, you might want to increase this limit. Historically, the three values in file-nr denoted the number of allocated file handles, the number of allocated but unused file handles, and the maximum number of file handles. Linux 2.6 always reports 0 as the number of free file handles -- this is not an error, it just means that the number of allocated file handles exactly matches the number of used file handles. Attempts to allocate more file descriptors than file-max are reported with printk, look for "VFS: file-max limit reached". My first reading of this is that the kernel basically has a built-in file descriptor leak, but I find that very hard to believe. It would imply that any system in active use needs to be rebooted every so often to free up the file descriptors. As I said, I can't believe this would be true, since it's normal to me to have Linux systems stay up for months (even years) at a time. On the other hand, I also can't believe that my nearly-idle system is holding over a million files open. Does anyone have any ideas, either for fixes or further diagnosis? I could, of course, just reboot the system, but I don't want this to be a recurring problem every few weeks. As a stopgap measure, I've quit Firefox, which was accounting for almost 2000 lines of lsof output (!) even though I only had one window open, and now I can run 'ls' again, but I doubt that will fix the problem for long. (edit: Oops, spoke too soon. By the time I finished typing out this question, the symptom was/is back) Thanks in advance for any help. And another update: My system was basically unusable, so I decided I had no option but to reboot. But before I did, I carefully quit one process at a time, checking /proc/sys/fs/file-nr after each termination. I found that, predictably, the number of open files gradually went down as I closed things down. Unfortunately, it wasn't a large effect. Yes, I was able to clear up 5000-10000 open files, but there were still over 1.2 million left. I shut down just about everything. All interactive shells, except for the one ssh I left open to finish closing down, httpd, even nfs service. Basically everything in the process table that wasn't a kernel process, and there were still an appalling number of files apparently left open. After the reboot, I found that /proc/sys/fs/file-nr showed about 2000 files open, which is much more reasonable. Starting up 2 Xvnc sessions as usual, along with the dozen or so monitoring windows I like to keep open, brought the total up to about 4000 files. I can see nothing wrong with that, of course, but I've obviously failed to identify the root cause. I'm still looking for ideas, since I definitely expect it to happen again. And another update, the next day: I watched the system carefully, and discovered that /proc/sys/fs/file-nr showed a growth of about 900 open files per hour. I shut down the system's only NFS client for the night, and the growth stopped. Mind you, it didn't free up the resources, but it did at least stop consuming more. Is this a known bug with NFS? I'll be bringing the NFS client back online today, and I'll narrow it down further. If anyone is familiar with this behavior, feel free to jump in with "Yeah, NFS4 has this problem, go back to NFS3" or something like that.

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• Why does Windows 7 always automatically change the input or keyboard language?

  - by B-Ball

  I am wondering why Windows 7 always automatically changes my input or keyboard language. I've a notebook with an integrated QWERTY keyboard English (United States). Traveling, I use that one but, additionally, I've my own as well as a much better keyboard at home which is a QWERTZ keyboard German (Germany). Thus, being at home, I'd like to use my QWERTZ keyboard. Unfortunately, Windows 7 does not play along at this one. Every time, I start up my notebook, it is usually set to English (United States) but that's not the problem. In case, I'd use my notebook QWERTY keyboard English (United States), that's fine. However, if I start up my notebook and I'd like to use my QWERTZ keyboard German (Germany), I usually press ALT + Left Shift in order to switch from English (United States) to German (Germany) and Windows 7 switches the input language but only for the program that is currently open. If my input language is set to German (Germany) and I, e.g., open NotePad, Windows 7 automatically switches my input language to English (United States). This is very annoying since I've to change the input or keyboard language to German (Germany) every time I open up a new program. Why doesn't Windows 7 stay with one input language if I changed it manually by pressing ALT + Left Shift? Why doesn't the manual change of the input or keyboard language apply for the whole Windows 7? Why does it only affect the currently opened program? Since I've two keyboards with two different layouts, I seriously need to have both of the keyboards languages installed. I tried both of the below settings in order to find a solution for my problem. Currently, I am using the first option, two input languages. First option: Two input language - www.abload.de/img/19aie.jpg Second option: Two keyboard languages - www.abload.de/img/2nb4x.jpg Thank you very much in advance.

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• Why does Windows 7 always automatically change the input or keyboard language?

  - by B-Ball

  I am wondering why Windows 7 always automatically changes my input or keyboard language. I've a notebook with an integrated QWERTY keyboard English (United States). Traveling, I use that one but, additionally, I've my own as well as a much better keyboard at home which is a QWERTZ keyboard German (Germany). Thus, being at home, I'd like to use my QWERTZ keyboard. Unfortunately, Windows 7 does not play along at this one. Every time, I start up my notebook, it is usually set to English (United States) but that's not the problem. In case, I'd use my notebook QWERTY keyboard English (United States), that's fine. However, if I start up my notebook and I'd like to use my QWERTZ keyboard German (Germany), I usually press ALT + Left Shift in order to switch from English (United States) to German (Germany) and Windows 7 switches the input language but only for the program that is currently open. If my input language is set to German (Germany) and I, e.g., open NotePad, Windows 7 automatically switches my input language to English (United States). This is very annoying since I've to change the input or keyboard language to German (Germany) every time I open up a new program. Why doesn't Windows 7 stay with one input language if I changed it manually by pressing ALT + Left Shift? Why doesn't the manual change of the input or keyboard language apply for the whole Windows 7? Why does it only affect the currently opened program? Since I've two keyboards with two different layouts, I seriously need to have both of the keyboards languages installed. I tried both of the below settings in order to find a solution for my problem. Currently, I am using the first option, two input languages. First option: two input languages: Second option: two keyboard languages:

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• how to remove trailing and leading whitespace for user-provided input in dos?

  - by OopOop

  I know how to do this when the variable is pre-defined. However, when asking for the user to enter in some kind of input, how do I trim leading and trailing whitespace? This is what I have so far: @echo off set /p input=: echo. The input is %input% before ::trim left whitespace for /f "tokens=* delims= " %%a in ("%input%") do set input=%%a ::trim right whitespace (up to 100 spaces at the end) for /l %%a in (1,1,100) do if "!input:~-1!"==" " set input=!input:~0,-1! echo. The input is %input% after pause Thank you! :)

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• How would I handle input with a Game Component?

  - by Aufziehvogel

  I am currently having problems from finding my way into the component-oriented XNA design. I read an overview over the general design pattern and googled a lot of XNA examples. However, they seem to be right on the opposite site. In the general design pattern, an object (my current player) is passed to InputComponent::update(Player). This means the class will know what to do and how this will affect the game (e.g. move person vs. scroll text in a menu). Yet, in XNA GameComponent::update(GameTime) is called automatically without a reference to the current player. The only XNA examples I found built some sort of higher-level Keyboard engine into the game component like this: class InputComponent: GameComponent { public void keyReleased(Keys); public void keyPressed(Keys); public bool keyDown(Keys); public void override update(GameTime gameTime) { // compare previous state with current state and // determine if released, pressed, down or nothing } } Some others went a bit further making it possible to use a Service Locator by a design like this: interface IInputComponent { public void downwardsMovement(Keys); public void upwardsMovement(Keys); public bool pausedGame(Keys); // determine which keys pressed and what that means // can be done for different inputs in different implementations public void override update(GameTime); } Yet, then I am wondering if it is possible to design an input class to resolve all possible situations. Like in a menu a mouse click can mean "click that button", but in game play it can mean "shoot that weapon". So if I am using such a modular design with game components for input, how much logic is to be put into the InputComponent / KeyboardComponent / GamepadComponent and where is the rest handled? What I had in mind, when I heard about Game Components and Service Locator in XNA was something like this: use Game Components to run the InputHandler automatically in the loop use Service Locator to be able to switch input at runtime (i.e. let player choose if he wants to use a gamepad or a keyboard; or which shall be player 1 and which player 2). However, now I cannot see how this can be done. First code example does not seem flexible enough, as on a game pad you could require some combination of buttons for something that is possible on keyboard with only one button or with the mouse) The second code example seems really hard to implement, because the InputComponent has to know in which context we are currently. Moreover, you could imagine your application to be multi-layered and let the key-stroke go through all layers to the bottom-layer which requires a different behaviour than the InputComponent would have guessed from the top-layer. The general design pattern with passing the Player to update() does not have a representation in XNA and I also cannot see how and where to decide which class should be passed to update(). At most time of course the player, but sometimes there could be menu items you have to or can click I see that the question in general is already dealt with here, but probably from a more elobate point-of-view. At least, I am not smart enough in game development to understand it. I am searching for a rather code-based example directly for XNA. And the answer there leaves (a noob like) me still alone in how the object that should receive the detected event is chosen. Like if I have a key-up event, should it go to the text box or to the player?

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