AT commands are instructions that are used to control modems.
AT stands for ATTENTION.
These commands come from Hayes at commands that were used by the Hayes smart modems in 1980′s. Many modems today including dial-up, wireless, GSM/GPRS modems use these AT command set for communication.
(more…)
{ 2 comments }
Date command is helpful to display date in several formats. It also allows you to set systems date and time.
This article explains few examples on how to use date command with practical examples.
(more…)
{ 4 comments }
To connect to RabbitMQ message queue server, you can write your client program using various programming languages. Currently you can write client using C#, erlang, java, perl, PHP, python, and ruby.
This tutorial explains how to install and configure RabbitMQ client library and AMQP PHP extension.
(more…)
{ 2 comments }
From an email client, you’ll typically compose a message, attach any necessary files, and send it to the recipient. But, have you wondered what happens behind the scenes? How the email is sent from your outbox to the recipients inbox?
In this article, we will explain the basis of email. For those who already know this stuff, this might be a quick refresher.
(more…)
{ 14 comments }
The concept of references in C++ is simple, interesting and useful to programmers.
It adds value to C++ when compared with C. Though the debate between the followers of C and C++ will always be there but I personally think that both the languages have little overlapping area of usage.
When compared to C, C++ has some very unique features that come in very handy. For example, the concept of references. In this tutorial, we will discuss the reference concept through some practical examples.
(more…)
{ 7 comments }
Dictionary in python consists of keys and their values.
This article is part of our ongoing series on python. In the first article of the series, we explained how to use variables, strings and functions in python.
In this tutorial, we’ll understand the basics of python dictionaries with examples.
(more…)
{ 6 comments }
AuFS stands for Another Union File System.
AuFS started as an implementation of UnionFS Union File System.
An union filesystem takes an existing filesystem and transparently overlays it on a newer filesystem. It allows files and directories of separate filesystem to co-exist under a single roof. AuFS can merge several directories and provide a single merged view of it.
(more…)
{ 9 comments }
IP multi-casting is a communication mechanism in which data is communicated from server to a set of clients who are interested in receiving that data. Any client can dynamically enter or leave the communication.
Though the overall concept seems very simple but the way it is implemented requires good understanding. So, in this tutorial we will cover the basics of IP multi-casting and how it is achieved.
(more…)
{ 6 comments }
Linux 101 Hacks 2nd Edition eBook - Practical Examples to Build a Strong Foundation in Linux
My name is Ramesh Natarajan. I will be posting instruction guides, how-to, troubleshooting tips and tricks on Linux, database, hardware, security and web. My focus is to write articles that will either teach you or help you resolve a problem. Read more about Ramesh Natarajan and the blog.Copyright © 2008–2013 Ramesh Natarajan. All rights reserved | Terms of Service | Advertise