compare

Comparing the MD5 results of split files against the MD5 of the whole

試著忘記壹切 提交于 2019-12-01 12:16:52
I have a situation where I have one VERY large file that I'm using the linux "split" command to break into smaller parts. Later I use the linux "cat" command to bring the parts all back together again. In the interim, however, I'm curious... If I get an MD5 fingerprint on the large file before splitting it, then later get the MD5 fingerprints on all the independent file parts that result from the split command, is there a way to take the independent fingerprints and somehow deduce that the sum or average (or whatever you like to all it) of their parts is equal to the fingerprint of the single

Batch file to compare contents of a text file

纵然是瞬间 提交于 2019-12-01 11:43:19
问题 I have two text files which contain the below numbers File1 00000 11111 File2 00000 11111 22222 I need a code which compares the contents of file2 to that of file1 and the numbers which are not matched , in this case '22222' be the only content in file2. In short i want to erase the content of file2 and put the non matched content in file2. Below is the code i have tried but it just erases the entire thing in the file2. setlocal enabledelayedexpansion for /f "tokens=1" %%a in (file1) do (type

Until user input matches variable do

∥☆過路亽.° 提交于 2019-12-01 11:15:42
问题 Okay, so I'm trying to create a username/password login script of sorts. (may not be the most secure idea I'm still working on it) ;) My script will load variables to compare to from file like this. (right now I'm just working on password portion) ./path/to/variables.conf This file will contain a variable called PASS=SOME_VALUE I plan to use read to obtain the variable that will be compared read -p "Enter your password:" CPASS; Now the part I'm missing (how I envision it working) while "

Comparing the MD5 results of split files against the MD5 of the whole

[亡魂溺海] 提交于 2019-12-01 10:55:07
问题 I have a situation where I have one VERY large file that I'm using the linux "split" command to break into smaller parts. Later I use the linux "cat" command to bring the parts all back together again. In the interim, however, I'm curious... If I get an MD5 fingerprint on the large file before splitting it, then later get the MD5 fingerprints on all the independent file parts that result from the split command, is there a way to take the independent fingerprints and somehow deduce that the

How do I determine whether the types of two objects are compatible?

流过昼夜 提交于 2019-12-01 10:49:47
I have a generic function that I want to know how to write. List<Something> something; public int countItems<T>(List<T> Items) { // Here I would like to compare the type of "Items" with the type of "something" to see if they are compatible. How do I do it? return 0; } do you mean: if(typeof(T) == typeof(Something)) {...} ? Note that having generics depend hugely on the T (and act differently) may mean what you are trying to do isn't actually very generic ... if (something.GetType() == items.GetType()) ... This will compare the types of the actual objects. The question is poorly stated and more

c# Compare two text files and generate a new one with differences

假如想象 提交于 2019-12-01 10:45:40
I am looking for the best way to compare 2 text files (+-15000lines) quickly and get as output strings that are differents in the two files. 1st one is an old inventory, new one is the current inventory and I would like to generate an third one containing strings that are different between file2 & file1. (95% of the 2 files will be similar). Very simple approach, assuming that similar means equal : var file1Lines = File.ReadLines(file1Path); var file2Lines = File.ReadLines(file2Path); IEnumerable<String> inFirstNotInSecond = file1Lines.Except(file2Lines); IEnumerable<String> inSecondNotInFirst

How to compare A to Á on the iPhone

南楼画角 提交于 2019-12-01 09:50:31
I need to compare 2 strings, looking at the first letter only. Is there a method to compare A to Á, and recognize it as A, without the ´ ? NSString has a diacritic-insensitive comparison mode which will do what you're after. // should return NSOrderedSame, i.e. identical [@"Apple" compare:@"Ápple" options:NSDiacriticInsensitiveSearch] If you want it to be case-insensitive as well: // ditto [@"APPLE" compare:@"Ápple" options:NSDiacriticInsensitiveSearch | NSCaseInsensitiveSearch] 来源: https://stackoverflow.com/questions/4418997/how-to-compare-a-to-%c3%81-on-the-iphone

How do I determine whether the types of two objects are compatible?

廉价感情. 提交于 2019-12-01 09:30:41
问题 I have a generic function that I want to know how to write. List<Something> something; public int countItems<T>(List<T> Items) { // Here I would like to compare the type of "Items" with the type of "something" to see if they are compatible. How do I do it? return 0; } 回答1: do you mean: if(typeof(T) == typeof(Something)) {...} ? Note that having generics depend hugely on the T (and act differently) may mean what you are trying to do isn't actually very generic ... 回答2: if (something.GetType()

Java8 特性详解(一) Lambda

南笙酒味 提交于 2019-12-01 09:10:37
为什么要使用lambda表达式 从函数式接口说起 理解Functional Interface(函数式接口)是学习Java8 lambda表达式的关键所在。 函数式接口的定义其实很简单:任何接口,如果只包含唯一一个抽象方法,那么它就是一个函数式接口。对于函数式接口,我们可以通过lambda表达式来创建该接口的对象。 为了让编译器帮助我们确保一个接口满足函数式接口的要求,也就是说有且仅有一个抽象方法。Java8提供了@FunctionalInterface注解。举个简单的例子,Runnable接口就是一个FI,下面是它的源代码: @FunctionalInterface public interface Runnable { public abstract void run(); } 使用@FunctionalInterface注解并不强制要求。但是使用注解会让代码看上去更清楚。 lambda表达式的语法糖 语法糖 Java中lambda表达式的格式:参数、箭头->、一个表达式。 为了演示lambda表达式的语法糖,我们通过Comparator作为例子。在Java8之前,可以借助匿名内部类来实现。 public static List<String> compareTest1(){ List<String> wordList = Arrays.asList("lianggzone",

How do I Compare two char[] arrays for equivalency?

孤者浪人 提交于 2019-12-01 08:57:24
Right now, I have two char arrays, foo1[] and foo2[] . When I convert them to string and output to the console, they BOTH appear as bar . I know that I can do something like this: int g; for (int i=0;i<length.foo1;i++) { // loop from 0 to length of array if (foo1[i]=foo2[i]) { // if foo1[0] and foo2[0] are the same char g++; // increment a counter by 1 } else // otherwise... { i=100; // set i to something that will halt the loop } if (g = length.foo1) { // if the incremented counter = length of array return true; // arrays are equal, since g only increments } // in the case of a match, g can