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# Get two numbers from STDIN, separated by a newline, and output the result number1 = gets number2 = gets puts number1.to_i + number2.to_i ## run with: $ ruby a_plus_b.rb ## or: $ echo -e "1\n2" | ruby a_plus_b.rb

number1 = ARGV[0] number2 = ARGV[1] puts number1.to_i + number2.to_i ## run with: $ ruby a_plus_b.rb 1 2

Consider the following code to copy one file to another: import java.io.*; public class FileCopy { public static void main(String[] args) throws Exception { try (InputStream is = new FileInputStream(args[0]); OutputStream os = new FileOutputStream(args[1])) { ...

RTE { classes { btn-lg { name = Button (large) requires = btn btn-default } btn-default { name = Button (default) requires = btn } } default { buttons.link.properties.class.allowedClas...

You need to keep track of some threads metrics to watch your Varnish Cache. Is it running out of OS resources or is it functioning well. threads - Number of threads in all pools. threads_created - Number of created threads. threads_failed - Number of times Varnish failed to create a thread. th...

TypeScript enables editors to provide contextual documentation: You'll never forget whether String.prototype.slice takes (start, stop) or (start, length) again!

{-# LANGUAGE OverloadedStrings #-} module Main where import Data.Aeson main :: IO () main = do let example = Data.Aeson.object [ "key" .= (5 :: Integer), "somethingElse" .= (2 :: Integer) ] :: Value print . encode $ example

Opening a database is database specific, here there are examples for some databases. Sqlite 3 file := "path/to/file" db_, err := sql.Open("sqlite3", file) if err != nil { panic(err) } MySql dsn := "mysql_username:CHANGEME@tcp(localhost:3306)/dbname" db, e...

Django REST Framework has some authentication methods already built in, one of them is Token based, so first thing to do is to tell our project we’re going to use rest framework’s authentication. Open settings.py file and add the highlighted line. INSTALLED_APPS = ( 'django.contrib.admin', ...

The GEOADD command allows a user to add geospatial information (item name, longitude, latitude) to a particular key. The GEOADD command can be used to add a single item to a key: GEOADD meetup_cities -122.43 37.77 "San Francisco" or multiple items to a key: GEOADD meetup_cities -122....

In this example we define a package header and a package body wit a function. After that we are calling a function from the package that return a return value. Package header: CREATE OR REPLACE PACKAGE SkyPkg AS FUNCTION GetSkyColour(vPlanet IN VARCHAR2) RETURN VARCHAR2; ...

Import needed libraries: from gcloud import storage Define needed variables: Client: Bundles the configuration needed for API requests client = storage.Client() Optional params for Client(): project: the project which the client acts on behalf of. Will be passed when creating a topic. If...

To add additional restriction to the poReceiptLinesSelection data view, you should invoke Select method on base view and inspect each item in returned PXResultSet independently to decide if it complies with additional restriction(s): public class APInvoiceEntryExt : PXGraphExtension<APInvoiceEn...

import redis r = redis.StrictRedis(host='localhost', port=6379, db=0) r.lpush('myqueue','myelement')

The CPU governor itself is just 1 C file, which is located in kernel_source/drivers/cpufreq/, for example: cpufreq_smartass2.c. You are responsible yourself for find the governor (look in an existing kernel repo for your device) But in order to successfully call and compile this file into your ke...

There are two main functions in Redis (HSET and HMSET) for adding fields to a hash key. Both functions are available in redis-py. Using HSET: import redis r = redis.StrictRedis(host='myserver', port=6379, db=0) r.hset('my_key', 'field0', 'value0') Using HMSET: import redis r = redis.St...

Redis allows you to add items to either the right or the left of a list. If I was working with a list, my_list and I wanted to prepend 3 to the list, I could do that using the Redis LPUSH command: LPUSH my_list 3 If I wanted to append 3 to my_list, I would instead use the RPUSH command: RPUSH ...

The basic Redis command for adding an item to a set is SADD. It takes a key and one or more members and adds them to the set stored at the given key. For example, lets say that I wanted to create a set with the items apple, pear and banana. I could execute either of the following: SADD fruit app...

Redis provides the ZADD command to add items to a sorted set. The basic form of the ZADD command is to specify the set, the item to add and it's score. For example, if I wanted to construct an ordered set of my favorite food (from least to most), I could use either of: zadd favs 1 apple zadd fav...

The simpler way to use Bash in Windows is to install Git for Windows. It's shipped with Git Bash which is a real Bash. You can access it with shortcut in : Start > All Programs > Git > Git Bash Commands like grep, ls, find, sed, vi etc is working.