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• Temporary operation in a temporary directory in shell script

  - by jhs

  I need a fresh temporary directory to do some work in a shell script. When the work is done (or if I kill the job midway), I want the script to change back to the old working directory and wipe out the temporary one. In Ruby, it might look like this: require 'tmpdir' Dir.mktmpdir 'my_build' do |temp_dir| puts "Temporary workspace is #{temp_dir}" do_some_stuff(temp_dir) end puts "Temporary directory already deleted" What would be the best bang for the buck to do that in a Bash script? I want to trap

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• For Loop Question?

  - by NextRev

  I'm programming an app for the iPhone. I'm not very good with loops just yet. How do I shorten this code into a for loop? if(CGRectContainsRect([space1 frame], [box frame])){ space1.image = [UIImage imageNamed:@"box.png"]; } else if(CGRectContainsRect([space2 frame], [box frame])){ space2.image = [UIImage imageNamed:@"box.png"]; } else if(CGRectContainsRect([space3 frame], [box frame])){ space3.image = [UIImage imageNamed:@"box.png"]; } else if(CGRectContainsRect([space4 frame], [box frame])){ space4.image = [UIImage imageNamed:@"box.png"]; } else if(CGRectContainsRect([space5 frame], [box frame])){ space5.image = [UIImage imageNamed:@"box.png"]; }

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• for loop in iPhone

  - by victor

  nodes = [doc nodesForXPath:@"//user" error: nil]; for (CXMLElement *node in nodes) { [itemPreDict setObject:[[node attributeForName:@"name"] stringValue] forKey:@"name"]; [itemPreDict setObject:[[node attributeForName:@"gender"] stringValue] forKey:@"gender"]; [itemPreDict setObject:[[node attributeForName:@"dob"] stringValue] forKey:@"dob"]; [itemDict setObject:itemPreDict forKey:[[node attributeForName:@"name"] stringValue]]; } In the end of loop, I'm getting 10 dicts (10 users) with same info for last user in a list, how can I get 10 dicts with different user info. Help Me Please!

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• How to get the current project directory or the bin directory and move a few level up?

  - by melaos

  I have an ASP.Net MVC app, and i have some xsl files inside of the Content directory. I've try a few methods to get directory dynamically buy keep on coming short. So how do i get the directory to point to the Content/xsl folder? the closest that i came to was with this: this.GetType().Assembly.CodeBase which only returns the project DLL, but i can't figure out how to move up a few levels from there or what .net library to use to navigate around the path. there's no ../.. :( Basically i want to navigate to the Content/xsl folder which is at the same level of the Bin directory.

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• Play a beep that loop and change the frequency/speed

  - by Bono

  Hi all, I am creating an iphone application that use audio. I want to play a beep sound that loop indefinitely. I found an easy way to do that using the upper layer AVAudioPlayer and the numberOfLoops set to "-1". It works fine. But now I want to play this audio and be able to change the rate / speed. It may works like the sound played by a car when approaching an obstacle. At the beginning the beep has a low frequency and this frequency accelerate till reaching a continuous sound biiiiiiiiiiiip ... It seems this is not feasible using the high layer AVAudioPlayer, but even looking at AudioToolBox I found no solution. Does anybody have informations about how to do that? Thanks a lot for helping me!

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• what is the '<app-directory>' of remote_api in google-app-engine

  - by zjm1126

  http://code.google.com/intl/en/appengine/docs/python/tools/uploadingdata.html the api is : Downloading Data from App Engine To start a data download, run appcfg.py download_data with the appropriate arguments: appcfg.py download_data --config_file=album_loader.py --filename=album_data_archive.csv --kind=Album <app-directory> i want to download data from my gae app zjm1126.appspot.com so i write this in the commond: appcfg.py download_data --config_file=GreetingLoad.py --filename=GreetingLoad.csv but, i don't know how to write the 'app-directory' so , how to write the 'app-directory'.. thanks

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• Storing source files outside project file directory in Visual Studio C++ 2009

  - by Skurmedel

  Visual Studio projects assumes all files belonging to the project are situated in the same directory as the project file, or one underneath it. For a particular project (in the non-Visual Studio sense) this is not what I want. I want to store the MSVC-specific files in another folder, because there might be other ways to build the application as well, for example with SCons. Also all the stuff MSVC splurts out clutters the source directory. Example: /source /scons /msvc <- here is where I want my MSVC-specific stuff I can add the files, in Explorer, to the source directory manually, and then link them in Visual Studio with the project. It's not the end of the world, but it annoys me a bit that Visual Studio tries to dictate the folder structure of my project. I was looking through the schemas for the project files but realized that this annoying assumption is in the IDE and not the format of the project files. Do someone know a neater way to solve this than manually linking files to the project from the source directory?

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• javscript smart array loop, need some help here

  - by Totty

  var _test1 = []; _test1[88] = 'sex'; _test1[1999990] = 'hey'; for(i = 0, length = _test1.length; i < length; i++){ if(_test1[i] == 'hey'){ alert(_test1.length); } } this takes a lot of time, and there are only 2 values. Is there any way to be faster? Or to use another system that index objects by a number and then loop them fast? thanks

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• How is the Tomcat temp directory location defined?

  - by sdoca

  I am running Tomcat bundled with Liferay5.2.3 and use Eclipse 3.5 (Galileo) as my IDE. I set up my Tomcat server in Eclipse as per this blog entry: http://www.jroller.com/holy/entry/developing_portlets_for_liferay_in. If I start Tomcat via the Eclipse server config, Liferay/Tomcat uses my C:\Documents and Settings\user\Local Settings\Temp\ directory. However, if I start Tomcat directly using the startup.bat script, Liferay/Tomcat uses the Tomcat temp directory. I can't figure out if Eclipse, Liferay or Tomcat is deciding which temp directory to use or how to change it. I would prefer to use the Tomcat temp directory. I have this issue with both the Lifera/Tomcat bundles 5.5 and 6.0 (liferay-portal-tomcat-6.0-5.2.3.zip and liferay-portal-tomcat-5.5-5.2.3.zip). Anybody have any clues?

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• for loop in #define

  - by hspim

  #include <stdio.h> #define UNITS {'*', '#', '%', '!', '+', '$', '=', '-'} #define PrintDigit(c, d) (for (i=0; i < c ; i++)putchar(unit[d]);) char unit[] = UNITS; //void PrintDigit(c, element) { // int i; // for (i=0; i < c ; i++) // putchar(unit[element]); //} int main( ) { int i, element=4; PrintDigit(10, element); putchar('\n'); return 0; } I have the function here PrintDigit() which works as expected. When attempting to turn the function into a #define however gcc keeps throwing a syntax error on the for loop. Any idea what the problem is?

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• jQuery ajax inside a loop problem

  - by steamboy

  Hello, This js loop script always get the last value of ui_item inside a jquery ajax funciton. How can a catch the correct value of each iteration? for (var i = 0; i <= split_files_cb_value_holder.length - 1; i++){ var split_values = split_files_cb_value_holder[i].split(':'); ui_item = split_files_cb_value_holder[i]; $.ajax({ type: "POST", url: "ds/index.php/playlist/check_folder", data: "component_type="+$('#component_type').val()+"&value="+split_values[1], success: function(msg) { console.log(ui_item); //ALWAYS GETS THE LAST VALUE }, error: function() { alert("An error occured while updating. Try again in a while"); } }); } Thanks!

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• ASP.NET MVC thinks my virtual directory is a controller

  - by kmehta

  I have a virtual directory under my MVC website in IIS called "Files". This directory is at the same level as my Views directory. When I link to a file from my MVC app to a file under my Files directory, I get the following error: The controller for path '/Files/Images/1c7f7eb8-5d66-4bca-a73a-4ba6340a7805.JPG' was not found or does not implement IController. It thinks that my Files VD is a controller. How do I access my files like a normal VD without MVC interfering? Thanks.

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• virtual directory for php app

  - by Tom

  I created a virtual directory for my php app. Now I get the "Directory Listing Denied This Virtual Directory does not allow contents to be listed." Do I need to make some kind of dummy index.asp file that redirects (OR PREFERRED: just displays index.php) or how to solve this? I have restricted access to webserver, but index.php is set to be default

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• read the contents of a directory using shell script

  - by jrharshath

  Hi, I'm trying to get the contents of a directory using shell script. My script is: for entry in `ls`; do echo $entry done However, my current directory contains many files with whitespaces in their names. In that case, this script fails. What is the correct way to loop over the contents of a directory in shell scripting? PS: I use bash.

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• Scala downwards or decreasing for loop?

  - by Felix

  In scala, you often use an iterator to do a for loop in an increasing order like: for(i <- 1 to 10){ code } How would you do it so it goes from 10 to 1? I guess 10 to 1 gives an empty iterator (like usual range mathematics)? I made a scala script which solves it by calling reverse on the iterator, but it's not nice in my opinion, is this the way to go: def nBeers(n:Int) = n match { case 0 => ("No more bottles of beer on the wall, no more bottles of beer."+ "\nGo to the store and buy some more, "+ "99 bottles of beer on the wall.\n") case _ => (n+" bottles of beer on the wall, "+n +" bottles of beer.\n"+"Take one down and pass it around, "+ (if((n-1)==0) "no more" else (n-1))+ " bottles of beer on the wall.\n") } for(b <- (0 to 99).reverse)println(nBeers(b)) ?? Any comments/suggestions?

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• How to fill many texbox by using loop function in VBA

  - by melt

  Hi ! I made a user interface in VBA with many textbox. I read an excel sheet and I put all the value of this one in all the textbox of my user inteface. So the user can modify the values and then save it in the excel sheet. Because we can't name the textbox like array (textBox(1), textbox(2)....) this is hard to fill the textbox by using a loop function. I tried to use tag or tabindex property but I don't find the good way to proceed .... Is someone know an easy way to solve this !!! Thanks

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• php for loop varable names

  - by Stefan

  i got a code of 100-200 rules for making a table. but the whole time is happening the same. i got a variable $xm3, then i make a column . next row, i got $xm2 and make column. next row, i got $xm1 and make column. so my variables are going to $xm3, $xm2, $xm1, $xm0, $xp1, $xp2, $xp3. is there a way to make a forloop so i can fill $xm and after that a value from the for loop?

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• How to prevent filename expansion in for loop in bash

  - by cagri

  In a for loop like this, for i in `cat *.input`; do echo "$i" done if one of the input file contains entries like *a, it will, and give the filenames ending in 'a'. Is there a simple way of preventing this filename expansion? Because of use of multiple files, globbing (set -o noglob) is not a good option. I should also be able to filter the output of cat to escape special characters, but for i in `cat *.input | sed 's/*/\\*'` ... still causes *a to expand, while for i in `cat *.input | sed 's/*/\\\\*'` ... gives me \*a (including backslash). [ I guess this is a different question though ]

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• I need to do a BASICE For Loop algorithm for a java Pyramid

  - by user1665119

  Question 2. USE THE FOR LOOP. Design and write an algorithm that will read a single positive number from the keyboard and will then print a pyramid out on the screen. The pyramid will need to be of a height equal in lines to the number inputted by the operator. Your program is not to test for negative numbers, nor is it to cater for them. For your test, use the number 7. If you would like to take the problem further, try 18 and watch what happens. Example input: 4 Example output: 1 121 12321 1234321

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• Variable loss in redirected bash while loop

  - by James Hadley

  I have the following code for ip in $(ifconfig | awk -F ":" '/inet addr/{split($2,a," ");print a[1]}') do bytesin=0; bytesout=0; while read line do if [[ $(echo ${line} | awk '{print $1}') == ${ip} ]] then increment=$(echo ${line} | awk '{print $4}') bytesout=$((${bytesout} + ${increment})) else increment=$(echo ${line} | awk '{print $4}') bytesin=$((${bytesin} + ${increment})) fi done < <(pmacct -s | grep ${ip}) echo "${ip} ${bytesin} ${bytesout}" >> /tmp/bwacct.txt done Which I would like to print the incremented values to bwacct.txt, but instead the file is full of zeroes: 91.227.223.66 0 0 91.227.221.126 0 0 127.0.0.1 0 0 My understanding of Bash is that a redirected for loop should preserve variables. What am I doing wrong?

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• FOR loop performance in Javascript

  - by AndrewMcLagan

  As my research leads me to believe that for loops are the fastest iteration construct in javascript language. I was thinking that also declaring a conditional length value for the for loop would be faster... to make it clearer, which of the following do you think would be faster? Example ONE for(var i = 0; i < myLargeArray.length; i++ ) { console.log(myLargeArray[i]); } Example TWO var count = myLargeArray.length; for(var i = 0; i < count; i++ ) { console.log(myLargeArray[i]); } my logic follows that on each iteration in example one accessing the length of myLargeArray on each iteration is more computationally expensive then accessing a simple integer value as in example two?

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• best-practice on for loop's condition

  - by guest

  what is considered best-practice in this case? for (i=0; i<array.length(); ++i) or for (i=array.length(); i>0; --i) assuming i don't want to iterate from a certain direction, but rather over the bare length of the array. also, i don't plan to alter the array's size in the loop body. so, will the array.length() become constant during compilation? if not, then the second approach should be the one to go for..

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• Javascript XMLHttpRequests in Loop?

  - by usurper

  Hi, I am trying to save an array of records into a mysql database but I always get the abort message in firebug except for the last save. How do I save the records using a loop for XMLHttpRequest? Here is my code: function savingContent() { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } var rowindex = 0; for (x in globalObj.AddedRows) { var rowData = "?q=" + globalObj.AddedRows[rowindex]; xmlhttp.open("POST", "insertRowData.php"+rowData, true); xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded"); xmlhttp.setRequestHeader("Content-Length",rowData.length); xmlhttp.send(null); rowindex += 1; }

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• JavaScript closures in for-loop

  - by user1656447

  As explained here http://www.mennovanslooten.nl/blog/post/62/ code below outputs result just for "5x5" forgetting about anything before that. for (x = 1; x <= 5; x++) { for (y = 1; y <= 5; y++) { var cords = x+"x"+y; var el = document.getElementById(cords); el.addEventListener("click", function (e) { B_modeWindow('1', cords); }); } } As far I have the informations (blog link provided above) can't figure out how to alter showed code to fix it. How to walk around this code with JavaScript closure in my for-loop?

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• stuck in while loop python

  - by user1717330

  I am creating a chat server in python and got quite far as a noob in the language. I am having 1 problem at the moment which I want to solve before I go further, but I cannot seem to find how to get the problem solved. It is about a while loop that continues.. in the below code is where it goes wrong while 1: try: data = self.channel.recv ( 1024 ) print "Message from client: ", data if "exit" in data: self.channel.send("You have closed youre connection.\n") break except KeyboardInterrupt: break except: raise When this piece of code get executed, on my client I need to enter "exit" to quit the connection. This works as a charm, but when I use CTRL+C to exit the connection, my server prints "Message from client: " a couple of thousand times. where am I going wrong?

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