Articles | Linuxaria

Speak Up In Linux Using eSpeak

Jan 032012

Article by Ankur Aggarwal, owner of the Blog http://flossstuff.wordpress.com

Sometimes we want our Linux box to speak to/for us.This ability is very useful to make announcements and alerts in case of many critical events in our machines or can be used just for sheer fun. There exists a command line synthesized known as eSpeak that comes pre installed in Ubuntu. You can also install it on debian systems by typing the command sudo apt-get install espeak in a command console .For all other operating systems you can install it from source available at http://espeak.sourceforge.net/download.html

Introduction to Unison

Articles, Guides 2 Responses »

Jan 012012

I think that a lot of computer user are now used to the concept of copy on the “Cloud”, with tools like Dropbox or Ubuntu One, you can have the same file saved in multiple computers (also with a different operating system) and at the same time have a copy of it on the Cloud.
Usually you get some free space to start and if you need more you have to pay a monthly or yearly price, but these concepts where already there and available for Linux with Unison.

Unison is a file-synchronization tool for Unix and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to the other.

The latest stable version, is 2.40.63. It is available as source code and precompiled binaries for Linux, Win32 and Mac OS X.
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Doing calculations using bash

Articles, Guides 2 Responses »

Dec 312011

Sometimes in my small shell script i’ve to do some math, usually nothing too complex but it’s useful to do the math inside the bash script. Bash it’s really complete and among the many builtin functions there are also some mathematical functions.

Using the syntax $((expression)) you can evaluate the expression. Operations allowed are quite a few. From man bash:

ARITHMETIC EVALUATION
The shell allows arithmetic expressions to be evaluated, under certain circumstances. Evaluation is done in fixed-width integers with no check for overflow, though division by 0 is trapped and flagged as an error. The operators and their precedence, asso ciativity, and values are the same as in the C language.
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2 Useful plugins for Yum

Articles, Guides 2 Responses »

Dec 282011

In these days i’ve worked a lot on Red Hat Enterprise and Centos machines, and so i’ve used yum to install, upgrade, remove and download packages.
I’m more used to .deb packages (or the portage system), and so for me these plugins are both new and really useful to extend the basic functions of yum.

In particular i’ll show you how:

Tell to yum the priorities among his repository
Use yum to download a package without installing it.

5 types of very annoying Linux users

Articles, Opinion 46 Responses »

Dec 222011

Original article by Perro, published in Spanish on the site http://paraisolinux.com/

Since I use Linux for several years now I’ve found Linux users of all kinds, having a blog has helped me to identify many types of Linux users. But of all the guys there are some that are very annoying and I will try to classify them.

I promise that this post is angering some who feel identified. 😛

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