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  • unix tool to remove duplicate lines from a file

    - by Nathan Fellman
    I have a tool that generates tests and predicts the output. The idea is that if I have a failure I can compare the prediction to the actual output and see where they diverged. The problem is the actual output contains some lines twice, which confuses diff. I want to remove the duplicates, so that I can compare them easily. Basically, something like sort -u but without the sorting. Is there any unix commandline tool that can do this?

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  • Encoding in python with lxml - complex solution

    - by Vojtech R.
    Hi, I need to download and parse webpage with lxml and build UTF-8 xml output. I thing schema in pseudocode is more illustrative: from lxml import etree webfile = urllib2.urlopen(url) root = etree.parse(webfile.read(), parser=etree.HTMLParser(recover=True)) txt = my_process_text(etree.tostring(root.xpath('/html/body'), encoding=utf8)) output = etree.Element("out") output.text = txt outputfile.write(etree.tostring(output, encoding=utf8)) So webfile can be in any encoding (lxml should handle this). Outputfile have to be in utf-8. I'm not sure where to use encoding/coding. Is this schema ok? (I cant find good tutorial about lxml and encoding, but I can find many problems with this...) I need robust approved solution so I ask you seniors. Many thanks

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  • decimal.TryParse() drops leading "1"

    - by Martin Harris
    Short and sweet version: On one machine out of around a hundred test machines decimal.TryParse() is converting "1.01" to 0.01 Okay, this is going to sound crazy but bare with me... We have a client applications that communicates with a webservice through JSON, and that service returns a decimal value as a string so we store it as a string in our model object: [DataMember(Name = "value")] public string Value { get; set; } When we display that value on screen it is formatted to a specific number of decimal places. So the process we use is string - decimal then decimal - string. The application is currently undergoing final testing and is running on more than 100 machines, where this all works fine. However on one machine if the decimal value has a leading '1' then it is replaced by a zero. I added simple logging to the code so it looks like this: Log("Original string value: {0}", value); decimal val; if (decimal.TryParse(value, out val)) { Log("Parsed decimal value: {0}", val); string output = val.ToString(format, CultureInfo.InvariantCulture.NumberFormat); Log("Formatted string value: {0}", output); return output; } On my machine - any every other client machine - the logfile output is: Original string value: 1.010000 Parsed decimal value: 1.010000 Formatted string value: 1.01 On the defective machine the output is: Original string value: 1.010000 Parsed decimal value: 0.010000 Formatted string value: 0.01 So it would appear that the decimal.TryParse method is at fault. Things we've tried: Uninstalling and reinstalling the client application Uninstalling and reinstalling .net 3.5 sp1 Comparing the defective machine's regional settings for numbers (using English (United Kingdom)) to those of a working machine - no differences. Has anyone seen anything like this or has any suggestions? I'm quickly running out of ideas... While I was typing this some more info came in: Passing a string value of "10000" to Convert.ToInt32() returns 0, so that also seems to drop the leading 1.

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  • get all running processes info using QProcess

    - by kaycee
    few days ago i asked about how to get all running processes in the system using QProcess. i found a command line that can output all processes to a file: C:\WINDOWS\system32\wbem\wmic.exe" /OUTPUT:C:\ProcessList.txt PROCESS get Caption this will create C:\ProcessList.txt file contains all running processes in the system. i wonder how can i run it using QProcess and take its output to a variable. it seems every time i try to run it and read nothing happens: QString program = "C:\\WINDOWS\\system32\\wbem\\wmic.exe"; QStringList arguments; arguments << "/OUTPUT:C:\\ProcessList.txt" <<"PROCESS"<< "get"<< "Caption"; process->setStandardOutputFile("process.txt"); process->start(program,arguments); QByteArray result = process->readAll(); i prefer not to create process.txt at all and to take all the output to a variable...

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  • Java program strange behavior, how to fix it ?

    - by Frank
    My notebook has Intel CPU, running Windows Vista. My program looks like this : public class Tool_Lib_Simple { public static void main(String[] args) { System.out.println("123"); } } When I run it, I expect to see : "123", but the output was : "Hi NM : How are you NM ?" which was the old output from two days ago before I changed my program. If I copy this program into another project in Netbean 6.7, it will run correctly and output "123", and if I change the program name from "Tool_Lib_Simple" to something else, it will also output "123", but just not under the name of "Tool_Lib_Simple" in the current project's src directory, I've deleted the "build" directory and did re-compile, re-build, it still gives me "Hi NM : How are you NM ?" as a result, seems to me the old version of my program is saved in the hard drive or ram and got stuck there, I've programmed many years, hardly ever encounter this kind of problem, how to fix this ? Frank

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  • Perl script -need some help.

    - by benjamin button
    I have an sql file which will give me an output like below: 10|1 10|2 10|3 11|2 11|4 . . . I am using this in a perl script like below: my @tmp_cycledef = `sqlplus -s $connstr \@DLCycleState.sql`; after this above statement,since tmp_cycledef has all the output of the sql query i want to show the output as: 10 1,2,3 11 2,4 how could i do this using perl?

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  • How to dynamically expand a string in C

    - by sa125
    Hi - I have a function that recursively makes some calculations on a set of numbers. I want to also pretty-print the calculation in each recursion call by passing the string from the previous calculation and concatenating it with the current operation. A sample output might look like this: 3 (3) + 2 ((3) + 2) / 4 (((3) + 2) / 4) x 5 ((((3) + 2) / 4) x 5) + 14 ... and so on So basically, the second call gets 3 and appends + 2 to it, the third call gets passed (3) + 2 , etc. My recursive function prototype looks like this: void calc_rec(int input[], int length, char * previous_string); I wrote a 2 helper functions to help me with the operation, but they implode when I test them: /********************************************************************** * dynamically allocate and append new string to old string and return a pointer to it **********************************************************************/ char * strapp(char * old, char * new) { // find the size of the string to allocate int len = sizeof(char) * (strlen(old) + strlen(new)); // allocate a pointer to the new string char * out = (char*)malloc(len); // concat both strings and return sprintf(out, "%s%s", old, new); return out; } /********************************************************************** * returns a pretty math representation of the calculation op **********************************************************************/ char * mathop(char * old, char operand, int num) { char * output, *newout; char fstr[50]; // random guess.. couldn't think of a better way. sprintf(fstr, " %c %d", operand, num); output = strapp(old, fstr); newout = (char*)malloc( 2*sizeof(char)+sizeof(output) ); sprintf(newout, "(%s)", output); free(output); return newout; } void test_mathop() { int i, total = 10; char * first = "3"; printf("in test_mathop\n"); while (i < total) { first = mathop(first, "+", i); printf("%s\n", first); ++i; } } strapp() returns a pointer to newly appended strings (works), and mathop() is supposed to take the old calculation string ("(3)+2"), a char operand ('+', '-', etc) and an int, and return a pointer to the new string, for example "((3)+2)/3". Any idea where I'm messing things up? thanks.

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  • Mix of two bit sequences

    - by Tomek Tarczynski
    Is there any clever way to mix two bit sequences in such way that bits from first sequence will be on odd places, and bits from second sequence will be on even places. Both sequences are no longer than 16b so output will fit into 32bit integer. Example: First sequence : 1 0 0 1 0 0 Second sequence : 1 1 1 0 1 1 Output : 1 1 0 1 0 1 1 0 0 1 0 1 I thought about making integer array of size 2^16 and then the output would be: arr[first] << 1 | arr[second]

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  • global scope of variable

    - by shantanuo
    The following shell scrip will check the disk space and change the variable "diskfull" to 1 if the usage is more than 10% The last echo always shows 0 I tried the global diskfull=1 in the if clause but it did not work. How do I change the variable to 1 if the disk consumed is more than 10% #!/bin/sh diskfull=0 ALERT=10 df -HP | grep -vE '^Filesystem|tmpfs|cdrom' | awk '{ print $5 " " $1 }' | while read output; do #echo $output usep=$(echo $output | awk '{ print $1}' | cut -d'%' -f1 ) partition=$(echo $output | awk '{ print $2 }' ) if [ $usep -ge $ALERT ]; then diskfull=1 exit fi done echo $diskfull

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  • Foreach is crashing script, but no errors reported.

    - by ILMV
    So I've created this smarty function to get images from my flickr photostream using SimplePie... simple really, or so it should be. The problem I'm having is the foreach will crash the script, this doesn't happen if I put an exit after the closing foreach, of course because of this the rest of my script doesn't execute. The problem also completely subsides if I remove the foreach, I've tested it and it's not the contents of the foreach, but the loop itself. Error reporting is turned on but I don't get any, I also tried messing with the memory_limit, with no luck. Anyone know why this foreach is killing my script? Thanks! function smarty_function_flickr ($params, &$smarty) { require_once('system/library/SimplePie/simplepie.inc'); require_once('system/library/SimplePie/idn/idna_convert.class.php'); $flickr=new flickr(); /** * Set up SimplePie with all default values using shorthand syntax. */ $feed = new SimplePie($params['feed'], 'system/library/SimplePie/cache', '600'); $feed->handle_content_type(); /** * What sizes should we use? * Choices: square, thumb, small, medium, large. */ $thumb = 'square'; $full = 'medium'; $output = array(); $counter=0; // If I comment this foreach out the problem subsides, I know it is not the code within the foreach foreach ($feed->get_items() as $item) { $url = $flickr->image_from_description($item->get_description()); $output[$counter]['title'] = $item->get_title(); $output[$counter]['image'] = $flickr->select_image($url, $full); $output[$counter]['thumb'] = $flickr->select_image($url, $thumb); $counter++; } // Set template variables and template $smarty->assign('flickr',$output); $smarty->display('forms/'.$params['template'].'.tpl'); }

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  • Concatenation with Zero is not occurring properly in code?

    - by Vineet
    I was trying to reverse a number in PL/SQL. It's working fine, but when my number contains any 0, the output is unexpected. For example: 1234 output 4321 1000 output 1 1203 ouput 3021 10001 output 1 DECLARE r number(9); num number(9):=&p_num; BEGIN WHILE num>=1 LOOP IF mod(num,10)=0 THEN -- extracting last digit of a number . r:=r||0; --if end digit is 0 then concat r with 0 ELSE r:=r||mod(num,10);--if mod is not 0 then it would be last digit. END IF; num:=trunc(num/10);--Removing last digit from number END LOOP; dbms_output.put_line(r); END;

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  • MySQL table data transformation -- how can I dis-aggregate MySQL time data?

    - by lighthouse65
    We are coding for a MySQL data warehousing application that stores descriptive data (User ID, Work ID, Machine ID, Start and End Time columns in the first table below) associated with time and production quantity data (Output and Time columns in the first table below) upon which aggregate (SUM, COUNT, AVG) functions are applied. We now wish to dis-aggregate time data for another type of analysis. Our current data table design: +---------+---------+------------+---------------------+---------------------+--------+------+ | User ID | Work ID | Machine ID | Event Start Time | Event End Time | Output | Time | +---------+---------+------------+---------------------+---------------------+--------+------+ | 080025 | ABC123 | M01 | 2008-01-24 16:19:15 | 2008-01-24 16:34:45 | 2120 | 930 | +---------+---------+------------+---------------------+---------------------+--------+------+ Reprocessing dis-aggregation that we would like to do would be to transform table content based on a granularity of minutes, rather than the current production event ("Event Start Time" and "Event End Time") granularity. The resulting reprocessing of existing table rows would look like: +---------+---------+------------+---------------------+--------+ | User ID | Work ID | Machine ID | Production Minute | Output | +---------+---------+------------+---------------------+--------+ | 080025 | ABC123 | M01 | 2010-01-24 16:19 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:20 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:21 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:22 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:23 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:24 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:25 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:26 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:27 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:28 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:29 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:30 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:31 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:22 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:33 | 133 | | 080025 | ABC123 | M01 | 2010-01-24 16:34 | 133 | +---------+---------+------------+---------------------+--------+ So the reprocessing would take an existing row of data created at the granularity of production event and modify the granularity to minutes, eliminating redundant (Event End Time, Time) columns while doing so. It assumes a constant rate of production and divides output by the difference in minutes plus one to populate the new table's Output column. I know this can be done in code...but can it be done entirely in a MySQL insert statement (or otherwise entirely in MySQL)? I am thinking of a INSERT ... INTO construction but keep getting stuck. An additional complexity is that there are hundreds of machines to include in the operation so there will be multiple rows (one for each machine) for each minute of the day. Any ideas would be much appreciated. Thanks.

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  • java.util.logging: how to suppress date line

    - by andrews
    I'm trying to suppress output of the date line durinng logging when using the default logger in java.util.logging. For example, here is a typical output: Jun 1, 2010 10:18:12 AM gamma.utility.application info INFO: ping: db-time=2010-06-01 10:18:12.0, local-time=20100601t101812, duration=180000 Jun 1, 2010 10:21:12 AM gamma.utility.application info INFO: ping: db-time=2010-06-01 10:21:12.0, local-time=20100601t102112, duration=180000 I would like to get rid of the Jun 1, 2010... lines, they just clutter my log output. How can I do this?

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  • Redirect and parse in realtime stdout of an long running process in vb.net

    - by Richard
    Hello there, This code executes "handbrakecli" (a command line application) and places the output into a string: Dim p As Process = New Process p.StartInfo.FileName = "handbrakecli" p.StartInfo.Arguments = "-i [source] -o [destination]" p.StartInfo.UseShellExecute = False p.StartInfo.RedirectStandardOutput = True p.Start Dim output As String = p.StandardOutput.ReadToEnd p.WaitForExit The problem is that this can take up to 20 minutes to complete during which nothing will be reported back to the user. Once it's completed, they'll see all the output from the application which includes progress details. Not very useful. Therefore I'm trying to find a sample that shows the best way to: Start an external application (hidden) Monitor its output periodically as it displays information about it's progress (so I can extract this and present a nice percentage bar to the user) Determine when the external application has finished (so I can't continue with my own applications execution) Kill the external application if necessary and detect when this has happened (so that if the user hits "cancel", I get take the appropriate steps) Does anyone have any recommended code snippets?

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  • jQuery .change() on Radio Button

    - by Denis Hoctor
    Hi folks, I must be missing something obvious here... I can't get .change() to fire on radio buttons? I have the code below live here! <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Radio Button jQuery Change</title> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script> <script type="text/javascript"> console.log("parsed"); $("input[name='rdio']").change(function() { console.log("changed"); if ($("input[name='rdio']:checked").val() == 'a') $("output").text("a changed"); else if ($("input[name='rdio']:checked").val() == 'b') $("output").text("b changed"); else $("output").text("c changed"); }); </script> </head> <body> <div> <input type="radio" name="rdio" value="a" checked="checked" /> a <br/> <input type="radio" name="rdio" value="b" /> b <br/> <input type="radio" name="rdio" value="c" /> c </div> <h3>Output:</h3> <div id="output"></div> </body> </html> Can anyone see what I've missed? Thanks, Denis

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  • Equality with Double.NaN

    - by chris
    I have the following code... if (Price_Foreign != Double.NaN) { output.Append(spacer); output.Append(String.Format("{0,-10:C} USD",Price_Foreign)); } Which outputs: NaN USD What gives? I'm using Double.NaN to indicate that the value doesn't exist, and shouldn't be output.

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  • Ruby module_function, invoking module's private method, invoked in class method style on module shows error

    - by Jignesh
    test_module.rb module MyModule def module_func_a puts "module_func_a invoked" private_b end module_function :module_func_a private def private_b puts "private_b invoked" end end class MyClass include MyModule def test_module module_func_a end end Invoking module function from class c = MyClass.new c.test_module Output 1: $ ruby test_module.rb module_func_a invoked private_b invoked Invoking module function on module in class method style ma = MyModule.module_func_a Output 2: module_func_a invoked test_module.rb:5:in `module_func_a': undefined local variable or method `private_b' for MyModule:Module (NameError) from test_module.rb:31 As can be seen from the Output 1 and Output 2 when including the module in a class, no issue occurs when a module's private method gets invoked from a module function while in case when directly invoking the module function on the module in class method style the module's private method, invoked from module function, is not found. Can anybody make me understand the reason behind above behavior and whether invoking module function (which in turn invokes module's private method) on module in class method style is possible or not? If possible, then what rectifications are required in my code to do the same? Thanks, Jignesh

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  • Recursive t-sql query

    - by stackoverflowuser
    Hi I have a table as shown below. ID ParentID Node Name Node Type ------------------------------------------------------------------ 525 524 Root Area Level 1 526 525 C Area Level 2 527 525 A Area Level 2 528 525 D Area Level 2 671 525 E Area Level 2 660 527 B Area Level 3 672 671 F Area Level 3 How can i write a recursive t-sql query to generate below output? Output ("Root" node not required in the output): Node ID ----------------------- A 527 A/B 660 C 526 D 528 E 671 E/F 672 Thanks

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  • Concatenation with Zero is not occuring properly in code?

    - by Vineet
    I was trying to reverse a number in pl/sql ,its working fine but when my number contain any 0,output come unexpected .for eg 1234 output 4321 1000 output 1 1203 ouput 3021 10001 output 1 DECLARE r number(9); num number(9):=&p_num; BEGIN WHILE num>=1 LOOP IF mod(num,10)=0 THEN -- extracting last digit of a number . r:=r||0; --if end digit is 0 then concat r with 0 ELSE r:=r||mod(num,10);--if mod is not 0 then it would be last digit. END IF; num:=trunc(num/10);--Removing last digit from number END LOOP; dbms_output.put_line(r); END;

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  • How to check Linux version with Autoconf?

    - by Goofy
    My program requires at least Linux 2.6.26 (I use timerfd and some other Linux-specific features). I have an general idea how to write this macro but I don't have enough knowledge about writing test macros for Autoconf. Algorithm: Run "uname --release" and store output Parse output and subtract Linux version number (MAJOR.MINOR.MICRO) Compare version I don't know how to run command, store output and parse it. Maybe such macro already exists and it's available (I haven't found any)?

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  • Compact a given array problem

    - by Bragaadeesh
    Dont know whether this is a duplicate, but this was an interview question asked to me. Given an array of random numbers and -1 placed inbetween, I have to compact the array meaning all the -1s are to be replaced and the final output should be the last valid index with the fresh array. For example. Input: 3 4 -1 -1 -1 5 8 -1 8 Output: 3 4 5 8 8 5 8 -1 8 and last valid index is 4 Input: -1 -1 -1 -1 -1 2 Output: 2 -1 -1 -1 -1 2 and last valid index is 0 Input: -1 -1 -1 3 3 3 Output: 3 3 3 3 3 3 and last valid index is 2 You should not swap the values just the last valid index along with the array is enough to decipher the non negative values.

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  • exec() in BeanShell macro causes jEdit to hang when it returns non-zero exit code

    - by rossmeissl
    I have a jEdit BeanShell macro that runs my Markdown files through Maruku when I save them: if (buffer.getMode().toString().equals("markdown")) { cmd = "C:\\Ruby\\bin\\maruku.bat -o " + buffer.getDirectory() + buffer.getName().replaceAll("markdown$", "html") + " " + buffer.getPath(); exec(cmd); } This works great when the Markdown file is valid. But if I've made a mistake, jEdit just waits around forever for the exec() call to "succeed," which it never will. When this happens, I have to kill jEdit's javaw.exe process and run Maruku manually from the command line to discover the error, e.g.: E:\bp\plan\supply_chain>maruku business_plan.markdown ___________________________________________________________________________ | Maruku tells you: +--------------------------------------------------------------------------- | Could not find ref_id = "17" for md_link(["17"],"17") | Available refs are [] +--------------------------------------------------------------------------- !C:/Ruby/lib/ruby/gems/1.8/gems/maruku-0.6.0/lib/maruku/errors_management.rb:49:in `maruku_error' !C:/Ruby/lib/ruby/gems/1.8/gems/maruku-0.6.0/lib/maruku/output/to_html.rb:716:in `to_html_link' !C:/Ruby/lib/ruby/gems/1.8/gems/maruku-0.6.0/lib/maruku/output/to_html.rb:970:in `send' !C:/Ruby/lib/ruby/gems/1.8/gems/maruku-0.6.0/lib/maruku/output/to_html.rb:970:in `array_to_html' !C:/Ruby/lib/ruby/gems/1.8/gems/maruku-0.6.0/lib/maruku/output/to_html.rb:961:in `each' \___________________________________________________________________________ Not creating a link for ref_id = "17". Then I restart jEdit, fix the error, and re-save the file, at which point the macro succeeds. How can I make my macro more resilient to either die helpfully (display Maruku's error output) or, at the very least, die silently so I don't have to kill jEdit?

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  • Downloading file with Python results in only 4.1kB

    - by Vlad Ogay
    I'm using simple code: import urllib2 response = urllib2.urlopen("http://www.mysite.com/getfile/4355") output = open('myfile.zip','wb') output.write(response.read()) output.close() The web-server is IIS + ASP.NET MVC 4 It returns FileResult wrapping a zip-file with "application/octet-stream" content-type. The problem is that downloaded zip file is broken - only 4.1kB size, where it must be 24kB. When I type the url adress in web-browser directly - it downloads and opens fine. Could you please, suggest, what's wrong with my Python code?

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