benve benve

## tmux-cheatsheet.markdown

      
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                benve
                / tmux-cheatsheet.markdown
            
            
              Last active
              August 29, 2015 14:06
                — forked from MohamedAlaa/tmux-cheatsheet.markdown
            
          
    tmux shortcuts & cheatsheet

start new:
tmux

start new with session name:
tmux new -s myname


## designer.html
<link rel="import" href="../paper-button/paper-button.html">

<polymer-element name="my-element">

  <template>
    <style>
      :host {
        position: absolute;
        width: 100%;
        height: 100%;

## JavaInitialising.java

public class JavaInitialising {

  public static void main(String[] args) {

    String[] anArray = {"One", "Two", "Three"};

    List<String> aList = Arrays.asList(
            new String[]{"One", "Two", "Three"}
    );

## JVM.md

      
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                benve
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              July 21, 2020 03:29
            
              
                Link ed esempi su come monitorare e migliorare le performance della JVM
              
          
    Link

Info generiche


Java VM Options You Should Always Use in Production
Java HotSpot VM Options
Troubleshooting Guide for Java SE 6 with HotSpot VM
Garbage Collection (GC) Tuning Guide: https://confluence.atlassian.com/display/ATLAS/Garbage+Collection+(GC)+Tuning+Guide
Javaworld article rather old but generations well explained
Oracle's tuning guide for java 6
tagtraum industries list of vm flags The initial developer of GCViewer collected quite a few vm options (up to java 1.5)


## GetLastMongosConn.js
//Per ottenere gli ultimi mongos connessi al cluster

//Collegarsi ad un mongos

use config

//Stampa i mongos che hanno risposto al ping negli ultimi 5 minuti
db.mongos.find({ "ping" : { $gt : new Date((new Date) - 5 * 60 * 1000) }}).forEach(printjson)

## Regex.scala
//http://daily-scala.blogspot.com/2010/01/regular-expression-3-regex-matching.html

val date = "11/01/2010"

val Date = """(\d\d)/(\d\d)/(\d\d\d\d)""".r

val Date(day, month, year) = date

println(day)
println(month)

## slides.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <!--

    ***************************************************
    *                                                 *
    * DZ-Slides: HTML Template for your presentations *
    *                                                 *

## BitArray.pde
//byte c = byte(unbinary("00000000"));
byte c = byte(3);
println(binary(c));
int pointer = 1;

//Spegne
//c &= ~(1 << pointer);

//Accende
//c |= (1 << pointer);

## gist:268067
object HelloWorld {
    def main(args: Array[String]) {
      println("Hello, world!")
    }
  }
	<link rel="import" href="../paper-button/paper-button.html">

	<polymer-element name="my-element">

	<template>
	<style>
	:host {
	position: absolute;
	width: 100%;
	height: 100%;

	public class JavaInitialising {

	public static void main(String[] args) {

	String[] anArray = {"One", "Two", "Three"};

	List<String> aList = Arrays.asList(
	new String[]{"One", "Two", "Three"}
	);
	//Per ottenere gli ultimi mongos connessi al cluster

	//Collegarsi ad un mongos

	use config

	//Stampa i mongos che hanno risposto al ping negli ultimi 5 minuti
	db.mongos.find({ "ping" : { $gt : new Date((new Date) - 5 * 60 * 1000) }}).forEach(printjson)
	//http://daily-scala.blogspot.com/2010/01/regular-expression-3-regex-matching.html

	val date = "11/01/2010"

	val Date = """(\d\d)/(\d\d)/(\d\d\d\d)""".r

	val Date(day, month, year) = date

	println(day)
	println(month)
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<!--

	***************************************************
	* *
	* DZ-Slides: HTML Template for your presentations *
	* *
	//byte c = byte(unbinary("00000000"));
	byte c = byte(3);
	println(binary(c));
	int pointer = 1;

	//Spegne
	//c &= ~(1 << pointer);

	//Accende
	//c \|= (1 << pointer);
	object HelloWorld {
	def main(args: Array[String]) {
	println("Hello, world!")
	}
	}