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To find the word foo in the file bar : grep foo ~/Desktop/bar To find all lines that do not contain foo in the file bar : grep –v foo ~/Desktop/bar To use find all words containing foo in the end (WIldcard Expansion): grep "*foo" ~/Desktop/bar

Pseudorandom Distribution Accorinding to this Stack Overflow answer, user CherryDT pointed out this code: set /a num=%random% %% 100 does not give a uniform distribution. The internal dynamic variable %random% does gives a uniform distribution, but the above code will not be a uniformed random...

After installing perforce and setup your workspace through p4v, you could set up your workspace in Windows cmd. The command you need is: p4 set Set your server p4 set P4PORT= xx.xxx.xx.xxx:xxxxx Set your user name p4 set P4USER=username Set your password In terms of setting your passwo...

public class BaseViewModel extends ViewModel { private static final int TAG_SEGMENT_INDEX = 2; private static final int VIDEOS_LIMIT = 100; // We save input params here private final MutableLiveData<Pair<String, String>> urlWithReferrerLiveData = new MutableLiveData...

Handy method to initialise SolrJ client based on configuration properties; private void initSolrClient() { if (conf.kerberos().isEnabled()) { System.setProperty("java.security.auth.login.config", conf.kerberos().confPath()); HttpClientUtil.addConfigurer(new Krb5Http...

The possibilities are endless. as you can use this concept to pull the version number from your build system; such as git and use that version number in your project. CMakeLists.txt cmake_minimum_required(VERSION 3.8) project(project_name VERSION "0.0.0") configure_file(${path to con...

Use Spring REST Docs to document your services. It's a powerful framework which makes sure that the Service logic is always inline with the documentation. In order to do so, you would have to write integration tests for your services. If there is any mismatch in the documentation & service beha...

/***************************** login user @required : username and password via post method only @return user data if login successfull otherwise error message ****************************/ public function login(){ $username=$this->input->post('username'); $password=$this->input-...

Yarn is an alternative for npm, the default package manager on @angular/cli. If you want to use yarn as package manager for @angular/cli follow this steps: Requirements yarn (npm install --global yarn or see the installation page) @angular/cli (npm install -g @angular/cli or yarn global add @an...

This is a simple example on how you can automate tests for a console application that interact with standard input and standard output. The tested application read and sum every new line and will provide the result after a single white line is provided. The power shell script write "pass"...

The machine has to automatically determine the ideal behavior to maximize its performance. For example: Using reinforcement learning you can also make a computer program that can complete a Mario level (MarI/O - Machine Learning for Video Games).

Events triggered by actions inside a HTML form (applies to almost all HTML elements, but is most used in form elements): AttributeDescriptiononblurFires the moment that the element loses focusonchangeFires the moment when the value of the element is changedoncontextmenuScript to be run when a conte...

- (NSString *) UTIforFileExtension:(NSString *) extension { NSString * UTIString = (NSString *)UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, (CFStringRef)extension, ...

This example requires importing DateAdapter. import {DateAdapter} from '@angular/material'; datepicker.component.html: <md-input-container> <input mdInput [mdDatepicker]="picker" placeholder="Choose a date"> <button mdSuffix [mdDatepickerToggle]="pi...

mView.afterMeasured { // inside this block the view is completely drawn // you can get view's height/width, it.height / it.width } Under the hood inline fun View.afterMeasured(crossinline f: View.() -> Unit) { viewTreeObserver.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlob...

REM Truncate table (for testing) SQLCMD -Q "TRUNCATE TABLE TestDatabase.dbo.myNative;" REM Import data bcp TestDatabase.dbo.myNative IN D:\BCP\myNative.bcp -T -n REM Review results SQLCMD -Q "SELECT * FROM TestDatabase.dbo.myNative;"

First, Lets create a dummy dataframe We assume that a customer can have n orders, an order can have m items, and items can be ordered more multiple times orders_df = pd.DataFrame() orders_df['customer_id'] = [1,1,1,1,1,2,2,3,3,3,3,3] orders_df['order_id'] = [1,1,1,2,2,3,3,4,5,6,6,6] orders_df['...