I have two 3GB text files, each file has around 80 million lines. And they share 99.9% identical lines (file A has 60,000 unique lines, file B has 80,000 unique lines). How can I quickly find those unique lines in two files? Is there any ready-to-use command line tools for this? I'm using Python but I guess it's less possible to find a ...
I'm working on an assignment that has a plain text file of data. Each line of text represents a car race. Each line of text has four strings, delimited by commas. The strings represent a racer name. The first string is the racer that came first, the second got second place etc. The task we've been given is to read in this file and sor...
Is there an elegant way to get the computed style for each DOM node in a web page, for a large number of files, in order to compare style data for similar nodes across those files? I'm working on a large number of HTML files (> 500) containing pretty broken HTML from MS FrontPage, trying to extract style data and convert it to semantic ...
Hello! Is there a way to compare two blocks of memory, and know at which point they differ (memcmp() does not meet this requirement)? I wouldn't want to perform costly loops. Thanks in advance. Regards, Neo_b ...
Hey guys, So I am new to the development thing, making me yes a noob. I am currently creating my first iPhone app and in it I have a countdown relating to when a web video service is launching. Under the countdown I have a button that allows playing the video stream, I would like to create an if statement that tells the app to reference...
Hi all, i have more than one directory and want to check if there is any common files between directories should be identify and merge all the changes into only one file in ouput directory.i tried with kdiff3 and winmerge but not succeed. like this is directories strcuture 1)dir\doc.txt 2)dir2\doc.txt output directory will be...
Hi, I want to update a column by comparing each row to all other rows in the table but I cant figure out how to distinguish the column names in the row being updated with the rows being searched through. Here's a simplified example... people: +--------+-----+----------------+ | name | age | nameClosestAge | +--------+----...
Ok, no idea why a multi-billion dollar company skimps on array functions for their flagship SQL servers This is why people use MySQL Server. Ok, enough ranting. Using SQL 2005. Let's say i received an array via checkbox from another page using the querystring method: intTask = request.querystring("task") For this example, intTask = "...
I am making a bash script where I want to find files that are equal to a variable. The equals will then be used. I want to use "mogrify" to shrink a couple of image files that have the same name as the ones i gather from a list (similar to "dpkg -l"). It is not "dpkg -l" I am using but it is similar. My problem is that it prints all the...
How to compare local copy of a file with latest one in Subversion using Tortoisesvn? I have all my files committed but there seems to be a difference somewhere and I am trying to find it. ...
Hi, I wonder which of these excerpts should take less resources, when we want to see if "word" is an element of an array: Excerpt 1 - Check variable: <?php function checkWord($word, $elements) { $array = array($word => true); foreach ($elements as $element) { if (isset($array[$element])) return true; } return f...
I found this method: Array.prototype.compare = function(arr) { if (this.length != arr.length) return false; for (var i = 0; i < arr.length; i++) { if (this[i].compare) { if (!this[i].compare(arr[i])) return false; } if (this[i] !== arr[i]) return false; } return true; } var a = ['aa'...
Hi all, is there any such tool to compare row data and cell data between two mysql tables ? Say you have 2 different cells (values) in a row (same row idenfied by primary key) and you want to "Copy to Left" from one cell to the other, skip the next difference, and again Copy to Left (so not syncronize aka copy all). The compare part i s...
When I wrote in JavaScript "Ł" > "Z" it returns true. In Unicode order it should be of course false. How to fix this? My site is using UTF-8. ...
As titled, I couldn't find such plugin. Though many plugins provide FTP sync functions(like Aptana). But it lacks of compare/merge. Compare/Merge functions are usually used for versioning. However, in our web developments, we need such functions due to the followings: Our designers will modify the web site using FTP. I want to mer...
Several HOW TO questions about simple and multidimensional arrays: 1) How to search in simple and multi arrays? 2) How to count number of search results? 3) How to catch duplicates inside: 3.1 multidimensional array? 3.2 simple array? 3.3 in array's search results? 3.4 and remove them? 4) How to compare two arrays (multidime...
Hi I recently started learning LINQ. Bsically to understand this technology better I try to rewrite some of my previous programs using LINQ. I mean I try to replace foreach methods etc with linq queries. Today I encounterd a problem. I have a list of objects element List<Element> elementList public class Element { priv...
EDIT: OK, OK, I misread. I'm not comparing an int to an Integer. Duly noted. My SCJP book says: When == is used to compare a primitive to a wrapper, the wrapper will be unwrapped and the comparison will be primitive to primitive. So you'd think this code would print true: Integer i1 = 1; //if this were int it'd be corre...
I have a 2 list of dictionaries. The first list contains sphere definitions in terms of x, y, z, radius. The second list contains various points in space as x, y, z. These lists are both very long, so iterating over each list and compare against all values is inefficient. I've been trying the map and reduce terms, but both of them take...
I'm writing a linux shell for my operating systems class. I've knocked out the majority of it but I'm stuck on simple string comparisons. I've everything I can think of. strcmp should take in \0 terminated strings and return 0 for equal but that doesn't seem to be working and even stepping through the array and checking each char isn'...