Linux Kernel Module programming - Part 2

how to compile linux kernel tutorial

Ubuntu linux Kernel version checking - kernel tutorial part1

How to create your own command in Linux Ubuntu

GCC assembly code editing and linking example

How to install Golang

Ruby programing language installation steps and beginners tutorial

what is GitHub and How to install Git in Linux

Linux text editors - Vi , VIM, EMACS, SUBLIME

How to use Audio noise reductioin software Audacity and Openshot to edit...

Django web development tutorial 4 (noise reduced)- How to create a PDF f...

Django python web development framework tutorial 3 - How to render templ...

Python web development framework Django tutorial 2

signal.h library C programming in Linux Ubuntu video tutorial

How to install Django in Ubuntu Linux - Django Tutorial 1

How to create game using Pygame lib in python

how to create pdf in python using Reportlab

Plotting Sine wave with matplotlib in Python

Demonstration of Python program execution and C program Execution time ...

How to tar and gzip a file in linux

30 days with Ubuntu linux

If you really thinking out of windows Os, please go through this tutorial after installing ubuntu https://help.ubuntu.com/community/Installation/FromUSBStick 30 days with Ubuntu Linux - http://www.pcworld.com/article/229187/30_days_with_ubuntu_linux.html?page=2

Ubuntu internet wifi speed increase tip

Probably you can try the below steps in the Ubuntu machine to see whether your Internet speed is increasing or not

Step1:Put the below code in the bottom of the file using the bellow command



sudo vi /etc/sysctl.conf

net.core.rmem_default = 524288
net.core.rmem_max = 524288
net.core.wmem_default = 524288
net.core.wmem_max = 524288
net.ipv4.tcp_wmem = 4096 87380 524288
net.ipv4.tcp_rmem = 4096 87380 524288
net.ipv4.tcp_mem = 524288 524288 524288
net.ipv4.tcp_rfc1337 = 1
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_ecn = 0
net.ipv4.route.flush = 1

Step2: run the below command
sudo sysctl -p

You can also disable your IPv6

Step1: go Wifi symbol and click it , you will get a edit connection option

Step2: select the wifi you are using and edit the configuration , in IPv6 configuration , select method as 'ingnore'

how to write multiple files c programs and make/compile it together

Honestly this is the first time I am trying to write multiple file C program and trying to compile it together.
Details are explained in the below video

Learn Python Through Public Data Hacking

Building python

I have installed Ubuntu again in Dell laptop to experiment Cpython internals http://naveendavisv.blogspot.in/2015/08/cpython-internals-interpreter-and.html.

I have managed to download the Python source gz file from https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tar.xz and edit the cevel.c internal program in python and I have added printf("naveen") in infinite for loop in the program.

and I did below steps steps-
1. ./configure
2. make



the make printing 'naveennaveen...' as expected,

but what i am not understading , is the make command do both compiling the C program and running the executables ? I am not clear how cevel.c is running while we do MAKE ?

 make commnad - http://www.computerhope.com/unix/umake.htm http://linoxide.com/how-tos/linux-make-command-examples/

CPython internals - Interpreter and source code overview - Lecture 1

Online Python Tutor

Online Python Programming Tutor

First time I am seeing the very nice online tutor for Python http://www.pythontutor.com/visualize.html#mode=display

After writing the code , when you click on the Forward button , the flow of the statement can be seen in the program listing , at the same time variables values are listing in the right side.. its interesting .. Try this below

Embedded Systems Programming Course

Learn and Understand AngularJS - The First 50 Minutes

Why you need to compile your C program in GCC

GCC Compiler:

10 reason why we need to move to GCC -
http://stackoverflow.com/questions/1313702/gcc-compiler-advantage

If you need to compile C program, always go for GCC. You can find GCC online documentation in the below link http://naveendavisv.blogspot.com/2008/09/gcc-online-documentation.html



GCC and cross compilation


What is cross compilation - https://en.wikipedia.org/wiki/Cross_compiler

how to use GCC as cross compiler - http://wiki.osdev.org/GCC_Cross-Compiler

How to use GCC to compile ARM code :

https://launchpad.net/gcc-arm-embedded

http://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html

http://askubuntu.com/questions/487082/compiling-c-code-for-arm-processor-on-ubuntu-12-04


How to use GCC for PIC :

http://hackaday.com/2010/11/03/how-to-program-pics-using-linux/

Why linux ?

Why Linux ?

More than an operating system, Linux is a nice learning platform which takes you through some challenges always..

And there is great community loves GNU

why Linux, reasons is explained nicely in this website http://www.whylinuxisbetter.net/

Linux commands - http://www.tutorialspoint.com/listtutorial/Linux-Shell-commands/2596

Linux Concepts - http://www.tutorialspoint.com/listtutorials/linux/basic-concepts/1

Get Ubuntu Linux here - http://www.ubuntu.com/download

Angular.js + Node.js+ Express.js

Experimenting Angular.js with Node

I was actually trying to install angular.js seed on Node.js that I found in the below link
http://briantford.com/blog/angular-express

Angularjs tutorial - http://www.w3schools.com/angular/

codeacademy angularjs - https://www.codeacademy.com/courses/learn-angularjs

succeeded to the run application - node app.js .. after copying the zip file to the folder .

I got some errors while running the app.js  like  most middleware like "errorhandler is not bundled to the express". I just commented out the error handler statements and ran the app.

http://localhost:3000/

How to start with Texas lanuchpad

TEXAS LAUNCHPAD
Electrical,electronics and computer science engineering students should program something with launchpad before you pass out :-)

Theye are lot of tutorials available and it's very cheap. It's worth of spending money for it.


 http://www.ti.com/ww/en/launchpad/launchpad.html?DCMP=rtos&HQS=ep-sdo-rtos-pr-lp-launchpad-en

  http://hackaday.com/2010/08/11/how-to-launchpad-programming-with-linux/

How to start web application with docker for free

Below is good article that we can flow to create and run a Web application using docker.

https://blog.codeship.com/running-mean-web-application-docker-containers-aws/

How to use Docker ?

First of all , what is docker ?... I came across docker when I was searching for code editor and how to compile C code form web applications.
http://qnimate.com/create-an-frontend-editor-with-code-highlighting-and-execution/

 Docker - https://www.docker.com/

Docker is an open-source project that automates the deployment of applications inside software containers, by providing an additional layer of abstraction and automation of operating-system-level virtualization on Linux. https://en.wikipedia.org/wiki/Docker_(software)

I actually want to run the code in a virtual machine ( for this idea http://naveendavisv.blogspot.com/2015/08/thinking-to-build-microcontroller.html) and show the output in a text area, even though I don't need the full output, but if  the code can be checked for syntax error, I am much happy...

Embedded programming students must read websites

My suggestions :

http://www.arm.com/support/university/

http://www.element14.com/community/groups/arduino?forceNoRedirect=true

http://pramode.net


Found in google


http://www.quora.com/What-are-some-blogs-websites-to-read-about-Embedded-Systems

Electrical student must read websites

Electrical student must read websites

http://www.electricalengineeringschools.org/engineer-resources/

10 websites that a computer science student should read daily

You can find the list of websites for computer science students here blow link

http://www.quora.com/What-are-the-top-10-websites-computer-science-students-must-visit

Thinking to build Microcontroller Programming practice website

Started looking for the web technology to build a website for microcontroller programming practice.... kind of minimal functionalities available in codeacademy.com

I am not sure whether I can start with node.js for this.

I have seen http://codemirror.net/ and ace-editor as web code editor plugins

http://techslides.com/codemirror-versus-ace-editor


looking for advise from web-programmers


Based on the code left code editor area in C or Python, the LED  connected to port should blink based on program written. The user will have the ability to write 3 or 4 lines code in Micro controller programming in each page in the editor , so that he/she will get a hands-on experience on coding as well real time experience on how LED as connected and architecture of  microcontrollers

Page prototype:

sample routing programs with Expressjs in Node

There are some difference between express3.X and 4X in usage of app.router and bodyParser

how to avoid below errors in nodejs and expressjs

Most middleware like bodyparser is no longer bundled with Express

means you have not installed bodyparser , you have to install it as below
npm install body-parser

use this site for usage for body-Parser

https://www.npmjs.com/package/body-parser


Difference between express3.X and 4.X

https://scotch.io/bar-talk/expressjs-4-0-new-features-and-upgrading-from-3-0



App.js

ignore the commented lines in the below code

var express = require('express');
var path = require('path');
var http = require('http');
var app = express();
var bodyParser = require('body-parser');

 /*var urlencodedParser = bodyParser.urlencoded({ extended: false });*/
 app.use(bodyParser.urlencoded());

 app.set('port',process.env.PORT || 3000);
 app.set('views',__dirname + '/views');
 app.set('view engine','jade');

 /*app.use(app.router);*/
 /*var people = express.Router();*/

app.use(express.static(path.join(__dirname,'public')));

/*app.get('/about',function(req,res){
  res.send("about naveen");
 });*/

 

app.post('/user',function(req,res){
  res.send("requested user name" + req.body.name);
});

 

/*app.get('/user/:username',function(req,res){
  res.send(" "+ req.params.username + " profile");
 });*/

 /*app.get('/',function(req,res){
  res.send("hello......");
 });*/
 //app.use(express.static(path.join(__dirname, 'public')));

 var server = http.createServer(app).listen(app.get('port'),function(){
      console.log('Express server listening on port' + app.get('port'));
 });

place the file index.html in the Public folder

then start node app.js

nodejs Express routing

Express Nodejs Routing

 

 

 

 

 

Starting with Sphinx for html pages

Sphinx is a nice tool to build documentation online ...

Sphinx is a tool that makes it easy to create intelligent and beautiful documentation, these are the output formats it support -

Output formats: HTML (including Windows HTML Help), LaTeX (for printable PDF versions), ePub, Texinfo, manual pages, plain text

You can see the installation steps here - http://6109.hidepiy.com/110/the-first-step-of-sphinx-in-windows-xp-orz


tutorial - http://matplotlib.org/sampledoc/


below is the sample page I created with sphinx quick start

Are you really looking to learn Programming your own

I can say, if you are really looking to learn programming this is place you can try with

https://www.codecademy.com/courses/getting-started-v2/1/3?curriculum_id=506324b3a7dffd00020bf661

Codecademy is an online interactive platform that offers free coding classes in 8 different programming languages including Python, PHP, jQuery, JavaScript, AngularJS, and Ruby, as well as markup languages HTML and CSS

https://en.wikipedia.org/wiki/Codecademy

Baking Pi University of Cambridge course video tutorials

Baking Pi video tutorials

If you are really going to bake raspberry pi board, these are the tutorials we can follow ..
Baking Pi is course/guide to deverlop operating system on the Raspberry Pi board

https://www.raspberrypi.org/forums/viewtopic.php?f=72&t=82871

http://www.cl.cam.ac.uk/projects/raspberrypi/

Baking Pi

This is interesting..

http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/os/

Should try with raspberry pi

Shell scripting - awk

Started learning shell scripting with awk. Awk is kind of interpreter (http://en.wikipedia.org/wiki/Interpreter_(computing)) utility means which wont compile the program rather it just interpret the code.

http://en.wikipedia.org/wiki/AWK

awk tutorial are available in the following link http://www.grymoire.com/Unix/Awk.html