eLEARNING

Hi all

Today i want speak about education and eLearning websites.
Personally I am using COURSERA, in this site you can find many courses about a lot of arguments from Literature to Engineering.

Actually if you want study, internet offers many possibilities, there are no excuses. Only you have to choose the course and follow it.

During the course selection it's very important put the focus on three questions :

• Why do i want learn it? 
• What do i know about this matter?
• What do i expect from a course ?

In other words where i start and where i want arrive. Learn is simply a path from an A point to a B.

Another important factor is "perseverance" if you don't have it never you can terminate a course, you have to spend part of your time to study continuously day by day, week by week.

Use a eLearning site it's different to study in a real classroom and it needs more discipline, concentration and good capability of autonomy, Instead you can organize better your lessons in according of own learning ability.

There are many eLearning sites, for me the best alternatives to COURSERA are :

• CODECADEMY
• KHANACADEMY
• UDEMY 

The last one it's one of the best about computer science and programming languages

Stay tuned.

Dircmp in Linux

Hi all

For who as me came from unix world, dircmp is a very powerful command.
In Linux, in later versions, there is a form to compare recursively directories using command diff,
in this way :

diff -q -r ./dir1 ./dir2

Using this two options of diff command :


       -q  --brief
              Output only whether files differ.

       -r  --recursive
              Recursively compare any subdirectories found.

The result is similar at dircmp in unix.

Stay tuned.

Script to wait until execution of a background process has ended.

Hi all

Today a simple script. 

If you need execute a process (for example script1.sh) and wait his termination to start execution another process (for example script2.sh) here a simple solution :

#!/bin/ksh

echo ' Start script1.sh '

./script1.sh > /dev/null &

VAR=$!

echo 'PID ' $VAR

wait $VAR

echo 'Finish script1.sh' 

echo ' Start script2.sh '

./script2.sh > /dev/null &

VAR=$!

echo 'PID ' $VAR

wait $VAR

echo 'Finish script2.sh' 

An important command for this application is wait which pauses until execution of a background process has ended.

Stay Tuned.

DUOLINGO - A funny method to learn languages

Today i want speak about an application that i discovered this year on my android tablet :

DUOLINGO

https://play.google.com/store/apps/details?id=com.duolingo&hl=it

Last year this application was nominated "Best "2013 Learn application" on Android and IPhone Market :

Itunes : http://appleinsider.com/articles/13/12/17/apple-announces-best-of-2013-itunes-list-for-music-apps-more
Google Play : https://play.google.com/store/apps/collection/promotion_3000540_bestapp_apac

It's a free application and also it's possible to use it on web :

http://www.duolingo.com/

Many languages are supported : english, spanish, french, german, portuguese, italian, and others.

I hope to improve my low english level with this funny app.

Stay tuned.

Year 2014

Year 2014

2014 started three day ago and it's time to check my 2013 objectives :

• Improve my English Level                                            : Failed (Same level of 2013)
• Improve my Chess Level                                             : Failed (Few games and worse level)
• Improve my incomes                                                   : Failed (Failed only a good change in Conto                                                                                                    Arancio)       
• Be a better Christian                                                    : So and so
• Learn Android or a mobile languages (QT, jme, ...)      : Failed (No new language learned)
• Write more posts on this blog                                       : OK (This year i wrote more posts)

Only one objective over 6, very very bad.

So my new objectives for 2014 will be :

• Improve my English Level      
• Improve my Chess Level       
• Improve my incomes        
• Be a better Christian        
• Learn Android or a mobile languages (Android, j2ee, php, ...) 
• Write more posts on this blog

I hope, like every year, that in January 2014 results will be better ;-)

Stay tuned.