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A couple of days ago, I happened to read an article where I encountered this statement-“There is nothing called free lunch.” However, I do have a soul-searching question to all the business owners – Who doesn’t like free marketing tools?Small businesses and low budget startups know the value of every penny they invest. Big brands invest BIG money every month, every hour and probably every minute on marketing. Marketing on Social Networking sites has been gaining traction since the past decade. Well, Facebook and Twitter are age-old names and world is obsessed with these two platforms. However, people are connecting ... Read More
Sed is a stream editor. A stream editor is used to participate in normal textual content transformations on an enter a file. At the same time in some approaches much like an editor which allows scripted edits (comparable to ed). sed works by means of making only one cross over on the input(s) and is more efficient. Now, let us explore more about – “Text and File processing using sed Linux Commands”.Firstly, to verify the sed version, use the following command –$ sed --vThe sample output should be like this –sed (GNU sed) 4.2.2 Copyright (C) 2012 Free Software Foundation, ... Read More
In this problem, we are given an array of unique integers and a sum. And we have to find the triplets which can form the same sum.Let's take an example to solve the problem −Input : array = {0 , 2 , -1 , 1, -2} Sum = 1 Output : 1 2 -2 0 2 -1To solve this problem, we will be finding all the triplets that provide the sum. A simple approach will be using three loops and finding the sum of the elements and return the adequate triplet.Example Live Demo#include using namespace std; void Triplets(int arr[], int ... Read More
Aptitude is founded by Ncurses for APT front End and debian Bundle Manager, considering the fact that it is text-based and it runs from a terminal or a CLI – command line interface. This article explains about-“Linux Package Management with Aptitude”What is APTapt is a command line package manager and provides commands for searching and managing as well as querying information about packages. It provides the same functionality as the specialized APT tools, like apt-get and apt-cache, but enables options more suitable for interactive use by default.]To get more information about APT, use the following command –$ aptThe sample output ... Read More
In this problem, we are given an array of n unique integers. And we have to find the sum of two integers of the array which has the maximum frequency. The problem has multiple solutions and you need to find them all.Input : array = { 1, 12, 5, 7, 9, 11} Output : 16 12Explanation − sum 16 and 12 occur two times.5 + 11 = 16 & 7 + 9 = 16 1 + 11 = 12 & 5 + 7 = 12Now to solve this problem, our approach to the problem is checking the occurrence every sum ... Read More
In this problem, we are given a sorted array of numbers and we need to find the triplets with are in the form of arithmetic progression.An arithmetic progression is a series of numbers in which the difference between consecutive terms is the same.Let’s take an example to understand the problem better −Input : array = {2 , 5 , 7, 8 , 9 , 10} Output : 2 5 8 5 7 9 7 8 9 8 9 10To solve this problem, a simple solution would be running three loops and checking all triplets if they are in AP. but ... Read More
Do you know how to check the performance of a hard drive like checking the read and write speed on your Linux operating systems? then, this article is for you!! which is basically created to provide you an overview of DD command, which is geared towards better guidance to new users and as an exploration tour for getting started to the Linux world.What is DD Command?DD is a command-line utility for Unix and Unix-like operating systems where the primary purpose is to copy a file and converting the format of the data during the process.How to Test Hard Disk using ... Read More
More is a command to view (but not modify) the contents of a text file, one screen at a time. It is available on Unix and Unix-like systems, DOS, OS/2, and Microsoft Windows. Programs of this sort are called pagers. More is a very basic pager, originally allowing only forward navigation through a file, though newer implementations which allows for limited backward movement.The basics of more command should be like this –$ more /var/log/dkpg.logThe sample output should be like this –2016-12-02 11:30:45 startup archives unpack 2016-12-02 11:30:45 install python-ptyprocess:all 0.5-1 2016-12-02 11:30:45 status half-installed python-ptyprocess:all 0.5-1 2016-12-02 11:30:45 status ... Read More
In this problem we are given a directed graph and we have to print all paths from the source to the destination of the graph.Directed graph is a graph in with edges that are directed from vertex a to b.Let’s take an example to understand the problem Source = K destination = POutput:K -> T -> Y -> A -> P K -> T -> Y -> P K -> A -> PHere, we have found paths from K to P. We have traversed paths and printed all paths from K that direct us to P.To solve this problem, we will ... Read More
In this problem, we are given an mXn 2D matrix and we have to print all possible paths from top left to bottom right of matrix. For traversal, we can move in all four directions i.e. left, right, top, bottom.Thought the moves right and top are rarely used but these can be beneficial sometimes.Let’s take an example to understand the topic better :Input:1 3 5 2 8 9Output:1 -> 3 -> 5 -> 9 1 -> 3 -> 8 -> 9 1 -> 2 -> 8 -> 9To solve this problem, we will move from one cell to other ... Read More