ranjitiyer

#
# Source https://www.linuxtrainingacademy.com/linux-commands-cheat-sheet/
#

– SYSTEM INFORMATION
# Display Linux system information
uname -a

# Display kernel release information
uname -r

ranjitiyer

basic 'find file' commands
--------------------------
find / -name foo.txt -type f -print             # full command
find / -name foo.txt -type f                    # -print isn't necessary
find / -name foo.txt                            # don't have to specify "type==file"
find . -name foo.txt                            # search under the current dir
find . -name "foo.*"                            # wildcard
find . -name "*.txt"                            # wildcard
find /users/al -name Cookbook -type d           # search '/users/al' dir

ranjitiyer

# Delete docs that do not exactly match a phrase
POST audiobooks/book/_delete_by_query
{
  "query": {
    "bool": {
      "must_not": [
        {"match_phrase": {
          "language": "English"
        }}
      ]

ranjitiyer

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.amazon</groupId>
    <artifactId>spark</artifactId>
    <version>1.0-SNAPSHOT</version>

ranjitiyer

/* eslint-disable  func-names */
/* eslint-disable  dot-notation */
/* eslint-disable  new-cap */
/* eslint quote-props: ['error', 'consistent']*/
/**
 * This sample demonstrates a simple skill built with the Amazon Alexa Skills
 * nodejs skill development kit.
 * This sample supports en-US lauguage.
 * The Intent Schema, Custom Slots and Sample Utterances for this skill, as well
 * as testing instructions are located at https://github.com/alexa/skill-sample-nodejs-trivia

ranjitiyer

public class ExceptionUtils {
    public static String stackTraceAsString(Exception ex) {
        if (ex == null) {
            return "";
        }

        return Arrays.asList(ex.getStackTrace())
                .stream()
                .reduce(
                        new StringBuilder(),

ranjitiyer

/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception