dumindu

screen -S dumindu
pv /home/usera/download/public/db_dump.sql.gz  | gunzip | mysql db_name;
#exit from screen without terminating task
ctrl ad

#to check back
screen -r dumindu

#to terminate 
ctrl d

dumindu

#System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

dumindu

// ------- code ----------
use std::io;

fn main() {
	println!("Type someting!");

	let mut input = String::new();
	match io::stdin().read_line(&mut input) {
	    Ok(n) => println!("You input {}({} bytes)", input, n),
	    Err(error) => println!("error: {}", error)

dumindu

use std::io;

fn main() {
	let i_default: u64 = 4;
	let d_default: f64 = 4.0;
	let s_default = "HackerRank ".to_string();

	let mut input = String::new();

	println!("Type second integer!");

dumindu

<?php
function solution($A) {
    $cost = 0;
    if (count($A) == 30) {
       $cost += 25;
    } else {
        $ticketCount = [
            '1d' => 0, 
            '7d' => 0
        ];

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fn main() {
    println!("Hello, world!");
}

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/// This module contains tests
mod test {
    // ...
}


mod test {
    //! This module contains tests

    // ...

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let a = true;
let b: bool = true;

let (x, y) = (1, 2);

let mut z = 5;
z = 6;

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const N: i32 = 5;

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static N: i32 = 5;