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>>**Linchenguang翻译中**
20 Funny Commands of Linux or Linux is Fun in Terminal
================================================================================
**Linux** is fun! **Huhhh**. OK so you don’t believe me. Mind me at the end of this article you will have to believe that **Linux** is actually a fun box.
![20 Linux Funny Commands](http://www.tecmint.com/wp-content/uploads/2013/05/Linux-Funny-Commands.png)
### 1. Command: sl (Steam Locomotive) ###
You might be aware of command ‘ls‘ the list command and use it frequently to view the contents of a folder but because of miss-typing sometimes you would result in ‘sl‘, how about getting a little fun in terminal and not “command not found“.
#### Install sl ####
root@tecmint:~# apt-get install sl (In Debian like OS)
root@tecmint:~# yum -y install sl (In Red Hat like OS)
#### Output ####
root@tecmint:~# sl
![sl command](http://www.tecmint.com/wp-content/uploads/2013/05/sl.png)
This command works even when you type ‘**LS**‘ and not ‘**ls**‘.
### 2. Command: telnet ###
**No! No!!** it is not as much complex as it seems. You would be familiar with **telnet**. Telnet is a text-oriented bidirectional network protocol over network. Here is nothing to be installed. What you should have is a Linux box and a working Internet.
root@tecmint:~# telnet towel.blinkenlights.nl
![telnet command](http://www.tecmint.com/wp-content/uploads/2013/05/telnet.png)
#### 3. Command: fortune ####
what about getting your random fortune, sometimes funny in terminal.
#### Install fortune ####
root@tecmint:~# apt-get install fortune (for aptitude based system)
root@tecmint:~# yum install fortune (for yum based system)
root@tecmint:~# fortune
You're not my type. For that matter, you're not even my species!!!
Future looks spotty. You will spill soup in late evening.
You worry too much about your job. Stop it. You are not paid enough to worry.
Your love life will be... interesting.
### 4. Command: rev (Reverse) ###
It **reverse** every string given to it, is not it funny.
root@tecmint:~# rev
123abc
cba321
xuniL eb ot nrob
born to be Linux
### 5. Command: factor ###
Time for some **Mathematics**, this command output all the possible factors of a given number.
root@tecmint:~# factor
5
5: 5
12
12: 2 2 3
1001
1001: 7 11 13
5442134
5442134: 2 2721067
### 6. Command: script ###
OK fine this is not a command and a script but it is nice.
root@tecmint:~# for i in {1..12}; do for j in $(seq 1 $i); do echo -ne $i×$j=$((i*j))\\t;done; echo;done
1×1=1
2×1=2 2×2=4
3×1=3 3×2=6 3×3=9
4×1=4 4×2=8 4×3=12 4×4=16
5×1=5 5×2=10 5×3=15 5×4=20 5×5=25
6×1=6 6×2=12 6×3=18 6×4=24 6×5=30 6×6=36
7×1=7 7×2=14 7×3=21 7×4=28 7×5=35 7×6=42 7×7=49
8×1=8 8×2=16 8×3=24 8×4=32 8×5=40 8×6=48 8×7=56 8×8=64
9×1=9 9×2=18 9×3=27 9×4=36 9×5=45 9×6=54 9×7=63 9×8=72 9×9=81
10×1=10 10×2=20 10×3=30 10×4=40 10×5=50 10×6=60 10×7=70 10×8=80 10×9=90 10×10=100
11×1=11 11×2=22 11×3=33 11×4=44 11×5=55 11×6=66 11×7=77 11×8=88 11×9=99 11×10=110 11×11=121
12×1=12 12×2=24 12×3=36 12×4=48 12×5=60 12×6=72 12×7=84 12×8=96 12×9=108 12×10=120 12×11=132 12×12=144
### 7. Command: Cowsay ###
An **ASCII** cow in terminal that will say what ever you want.
#### Install Cowsay ####
root@tecmint:~# apt-get install cowsay (for Debian based OS)
root@tecmint:~# yum install cowsay (for Red Hat based OS)
#### Output ####
root@tecmint:~# cowsay I Love nix
____________
< I Love nix >
------------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
How about pipelineing ‘**fortune command**‘, described above with cowsay?
root@tecmint:~# fortune | cowsay
_________________________________________
/ Q: How many Oregonians does it take to \
| screw in a light bulb? A: Three. One to |
| screw in the light bulb and two to fend |
| off all those |
| |
| Californians trying to share the |
\ experience. /
-----------------------------------------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
**Note: ‘|‘** is called pipeline instruction and it is used where the output of one command needs to be the input of another command. In the above example the output of ‘**fortune**‘ command acts as an input of ‘**cowsay**‘ command. This pipeline instruction is frequently used in scripting and programming.
**xcowsay** is a graphical program which response similar to **cowsay** but in a graphical manner, hence it is **X** of cowsay.
apt-get insatll xcowsay
yum install xcowsay
#### Output ####
root@tecmint:~# xcowsay I Love nix
![xcowsay command](http://www.tecmint.com/wp-content/uploads/2013/05/xcowsay.png)
**cowthink** is another command just run “cowthink Linux is sooo funny” and see the difference in output of cowsay and cowthink.
apt-get insatll cowthink
yum install cowthink
#### Output ####
root@tecmint:~# cowthink ....Linux is sooo funny
_________________________
( ....Linux is sooo funny )
-------------------------
o ^__^
o (oo)\_______
(__)\ )\/\
||----w |
|| ||
### 8. Command: yes ###
It is funny but useful as well, specially in scripts and for **System Administrators** where an automated predefined response can be passed to terminal or generated.
root@tecmint:~# yes I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
I Love Linux
**Note**: (Till you interrupt i.e **ctrl+c**).
### 9. Command: toilet ###
what? Are u kidding, huhh no! Definitely not, but for sure this command name itself is too funny, and I don’t know from where this command gets it’s name.
#### Install toilet ####
root@tecmint:~# apt-get install toilet
root@tecmint:~# yum install toilet
#### Output ####
root@tecmint:~# toilet tecmint
mmmmmmm " m
# mmm mmm mmmmm mmm m mm mm#mm mmm mmm mmmmm
# #" # #" " # # # # #" # # #" " #" "# # # #
# #"""" # # # # # # # # # # # # # #
# "#mm" "#mm" # # # mm#mm # # "mm # "#mm" "#m#" # # #
It even offers some kind of color and fonts style.
root@tecmint:~# toilet -f mono12 -F metal Tecmint.com
![toilet command](http://www.tecmint.com/20-funny-commands-of-linux-or-linux-is-fun-in-terminal/toilet/)
**Note: Figlet** is another command that more or less provide such kind of effect in terminal.
### 10. Command: cmatrix ###
You might have seen Hollywood movie ‘**matrix**‘ and would be fascinated with power, **Neo** was provided with, to see anything and everything in matrix or you might think of an animation that looks alike **Hacker**‘s desktop.
#### Install cmatrix ####
root@tecmint:~# apt-get install cmatrix
root@tecmint:~# yum install cmatrix
#### Output ####
root@tecmint:~# cmatrix
![cmatrix command](http://www.tecmint.com/wp-content/uploads/2013/05/cmatrix.png)
### 11. Command: oneko ###
OK so you believe that mouse pointer of Linux is the same silly black/white pointer where no animation lies then I fear you could be wrong. “**oneko**“ is a package that will attach a “**Jerry**“ with you mouse pointer and moves along with you pointer.
#### Install cmatrix ####
root@tecmint:~# apt-get install oneko
root@tecmint:~# yum install oneko
#### Output ####
root@tecmint:~# oneko
![oneko command](http://www.tecmint.com/wp-content/uploads/2013/05/oneko.png)
**Note**: Once you close the terminal from which **oneko** was run, **jerry** will disappear, nor will start at start-up. You can add the application to start up and continue enjoying.
### 12. Fork Bomb ###
This is a very nasty piece of code. Run this at **your own risk**. This actually is a fork bomb which exponentially multiplies itself till all the system resource is utilized and the system hangs. (To check the power of above code you should try it once, but all at your own risk, close and save all other programs and file before running **fork bomb**).
root@tecmint:~# :(){ :|:& }:
### 13. Command: while ###
The below “while” command is a script which provides you with colored date and file till you interrupt (ctrl + c). Just copy and paste the below code in terminal.
root@tecmint:~# while true; do echo "$(date '+%D %T' | toilet -f term -F border --gay)"; sleep 1; done
![Linux while command](http://www.tecmint.com/wp-content/uploads/2013/05/while.png)
**Note**: The above script when modified with following command, will gives similar output but with a little difference, check it in your terminal.
root@tecmint:~# while true; do clear; echo "$(date '+%D %T' | toilet -f term -F border --gay)"; sleep 1; done
### 14. Command: espeak ###
Just Turn the Knob of your multimedia speaker to full before pasting this command in your terminal and let us know how you felt listening the god’s voice.
#### Install espeak ####
root@tecmint:~# apt-get install espeak
root@tecmint:~# yum install espeak
#### Output ####
root@tecmint:~# espeak "Tecmint is a very good website dedicated to Foss Community"
### 15. Command: aafire ###
How about fire in your terminal. Just type “**aafire**” in the terminal, without quotes and see the magic. Press any key to interrupt the program.
#### Install aafire ####
root@tecmint:~# apt-get install libaa-bin
#### Output ####
root@tecmint:~# aafire
![](http://www.tecmint.com/wp-content/uploads/2013/05/aafire.png)
### 16. Command: bb ###
First install “**apt-get insatll bb**” and then, type “**bb**” in terminal and see what happens.
root@tecmint:~# bb
![bb command](http://www.tecmint.com/wp-content/uploads/2013/05/bb.png)
### 17. Command: url ###
Won’t it be an awesome feeling for you if you can update you **twitter status** from command line in front of your friend and they seems impressed. OK just replace **username, password** and **your status message** with your’s **username, password** and “**your status message**“.
### 18. ASCIIquarium ###
How it will be to get an **aquarium** in terminal.
root@tecmint:~# apt-get install libcurses-perl
root@tecmint:~# cd /tmp
root@tecmint:~# wget http://search.cpan.org/CPAN/authors/id/K/KB/KBAUCOM/Term-Animation-2.4.tar.gz
root@tecmint:~# tar -zxvf Term-Animation-2.4.tar.gz
root@tecmint:~# cd Term-Animation-2.4/
root@tecmint:~# perl Makefile.PL && make && make test
root@tecmint:~# make install
#### Install ASCIIquarium ####
Now Download and Install **ASCIIquarium**.
root@tecmint:~# cd /tmp
root@tecmint:~# wget http://www.robobunny.com/projects/asciiquarium/asciiquarium.tar.gz
root@tecmint:~# tar -zxvf asciiquarium.tar.gz
root@tecmint:~# cd asciiquarium_1.1/
root@tecmint:~# cp asciiquarium /usr/local/bin
root@tecmint:~# chmod 0755 /usr/local/bin/asciiquarium
And finally run “**asciiquarium**” or “**/usr/local/bin/asciiquarium**“ in terminal without quotes and be a part of magic that will be taking place in front of your eyes.
root@tecmint:~# asciiquarium
![aquarium command](http://www.tecmint.com/wp-content/uploads/2013/05/ascliquarium.png)
### 19. Command: funny manpages ###
First install “**apt-get install funny-manpages**” and then run man pages for the commands below. Some of them may be **18+**, run at your own risk, they all are too funny.
baby
celibacy
condom
date
echo
flame
flog
gong
grope, egrope, fgrope
party
rescrog
rm
rtfm
tm
uubp
woman (undocumented)
xkill
xlart
sex
strfry
root@tecmint:~# man baby
### 20. Linux Tweaks ###
It is time for you to have some one liner **tweaks**.
root@tecmint:~# world
bash: world: not found
root@tecmint:~# touch girls\ boo**
touch: cannot touch `girls boo**': Permission denied
root@tecmint:~# nice man woman
No manual entry for woman
root@tecmint:~# ^How did the sex change operation go?^
bash: :s^How did the sex change operation go?^ : substitution failed
root@tecmint:~# %blow
bash: fg: %blow: no such job
root@tecmint:~# make love
make: *** No rule to make target `love'. Stop.
$ [ whereis my brain?
sh: 2: [: missing ]
% man: why did you get a divorce?
man:: Too many arguments.
% !:say, what is saccharine?
Bad substitute.
server@localhost:/srv$ \(-
bash: (-: command not found
Linux is sexy: **who | grep -i blonde | date; cd ~; unzip; touch; strip; finger; mount; gasp; yes; uptime; umount; sleep** (If you know what i mean)
There are certain other but these don’t work on all the system and hence not included in this article. Some of them are man **dog , filter, banner**, etc.
Have fun, you can say me thanks later :) yup your comment is highly appreciated which encourages us write more. Tell us which command you liked the most. Stay tuned i will be back soon with another article worth reading.
--------------------------------------------------------------------------------
via: http://www.tecmint.com/20-funny-commands-of-linux-or-linux-is-fun-in-terminal/
译者：[译者ID](https://github.com/译者ID) 校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出

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乌龙茶占坑
How To Block A Website In Ubuntu
================================================================================
![](http://180016988.r.cdn77.net/wp-content/uploads/2014/02/block-websites.jpg)
Dear **ubuntu** geeks,
In this tutorial I will teach you how to block unwanted websites in Ubuntu Linux by editing the **/etc/hosts** file which is used to handle DNS and internet on Linux based systems.
I like very much this method because I don’t need to rely on third party applications and it is extremely easy to use. All you need to do is to make a simple change in the **/etc/hosts** file.
Make sure to have superuser access on the machine you are using this method, because the **/etc/hosts** file is owned by the root user and so it cannot not be edited by everyone.
What do you need to edit the **/etc/hosts** file?
root permissions and a text editor.
For this tutorial I will use my favourite text editor, vim. Ok guys, open a new terminal (**CTRL+ALT+T**) and run the following command to open the /etc/hosts file for editing.
vim /etc/hosts
Then add the following line.
127.0.0.1 domain.com
Replace the domain.com with the website you want to block and after you have finished the editing process, save the file and quit.
Now it is time to test if the method has worked or not. Try to access the website you blocked.
My cousin is addicted to the facebook social network so every time he find my laptop, he opens it and goes to facebook.com to chat with his friends.
What should I do?
I edit the **/etc/hosts** file and act like the website he is trying to reach is down.
You can also use this method to protect kids from adult content on the internet such as porn and horror movies.
--------------------------------------------------------------------------------
via: http://www.unixmen.com/block-website-ubuntu/
译者：[译者ID](https://github.com/译者ID) 校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出

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How to Wipe Free Disk Space in Linux
================================================================================
![](http://i1-news.softpedia-static.com/images/news2/How-to-Wipe-Free-Disk-Space-in-Linux-429965-2.jpg)
**The following tutorial will teach all Linux users how to securely wipe the free space of a hard disk drive (HDD), solid disk drive (SSD) or USB flash drive, making it impossible for anyone to recover deleted files. **
In case you didn’t know, when you delete a file from your system, even from Trash, it will disappear and can’t be found anywhere on the filesystem. However, that file is not actually gone, it resides in the free space of your disk drive and can still be recovered with data recovery applications.
For this tutorial we will provide two methods. The first one uses an application called Wipe Free Space, created by Polish developer Bogdan Drozdowski. In the second method we will use the well known BleachBit software.
While BleachBit is a graphical application, the Wipe Free Space is a command-line software. However, the developer also created an easy-to-use graphical user interface (GUI), allowing novice users to employ it in order to securely wipe the free space of their disk drives.
> Editor's note: Before we proceed, it is important to know that the applications will wipe the free space in unused clusters and blocks, in partially used blocks a.k.a. “slack space," as well as the names of deleted files and any other data that can be used to undelete the respective files.
### Method 1 - Wipe Free Space & Wipe Free Space GUI ###
The Wipe Free Space command-line application can be easily installed from the default software repositories of your Linux distribution, by using the provided binary file for RPM-based Linux distribution or by compiling the sources.
After installation, you can download the GUI front-end from [here][1], save it on your home folder, extract it, and double click the run.sh file (or execute sh run.sh in a terminal window) to open the application.
With the application opened, you will need to add the path to the wipefreespace executable, so click the "Browse" button and search it under /usr/bin/. Then add the filesystem that will be wiped.
Make sure that you check the "Wipe only with zeros" option on the left side of the window. If you need to add more options, first document yourself on how to use them, because they may crash your drive. Now press the "Start wiping" button to proceed.
### Method 2 - BleachBit ###
This is the easy method, recommended for novice users. You can easily install the BleachBit application from your Linux distribution's default software repositories. Open it, and make sure that you check the "Free disk space" option under the System section on the sidebar. Press the "Clean" button to proceed.
![](http://i1-news.softpedia-static.com/images/news2/How-to-Wipe-Free-Disk-Space-in-Linux-429965-3.jpg)
*The Free disk space option of BleachBit*
The entire wiping operation will take a long time. You can see the entire progress in the main window. Do not hesitate to drop a comment below if you encounter any issues with this tutorial.
Wipe Free Space GUI 0.5 Download:
- [Wipe Free Space GUI 0.5 tar.gz][2][binary] [210 KB]
- [Wipe Free Space GUI 0.5 tar.gz][3][sources] [380 KB]
--------------------------------------------------------------------------------
via: http://news.softpedia.com/news/How-to-Wipe-Free-Disk-Space-in-Linux-429965.shtml
译者：[译者ID](https://github.com/译者ID) 校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
[1]:http://linux.softpedia.com/get/System/System-Administration/Wipe-Free-Space-GUI-50722.shtml
[2]:http://sourceforge.net/projects/wipefreespace/files/wipefreespace-gui-java/0.5/WipeFreeSpaceGUI-java-bin-0.5.tar.gz/download
[3]:http://sourceforge.net/projects/wipefreespace/files/wipefreespace-gui-java/0.5/WipeFreeSpaceGUI-java-src-0.5.tar.gz/download

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Ubuntu 14.04 LTS vs. Windows XP: Pros and Cons
================================================================================
![](http://i1-news.softpedia-static.com/images/news2/Ubuntu-14-04-LTS-vs-Windows-XP-Pros-and-Cons-430084-2.jpg)
**More and more people are looking towards the release of Ubuntu 14.04 LTS (Trusty Tahr) as the natural Windows XP replacement, so we'll try to present the pros and cons for this decision.**
A lot of Windows XP users are looking to make a change after their operating system will cease to receive security updates from Microsoft, in April. Like most people who are migrating to Linux, they have a lot of questions about various aspects, regarding its use and its capabilities. The truth is that probably Windows XP users are more scared than they should be, as we will show right now.
### Installation ###
If you ever installed a Windows operating system, you will know how to install Ubuntu or any of its flavors. It uses a very simple and straightforward installer that doesn't bother the users with difficult choices.
The only drawback is that if you want to partition your system you might encounter some names that are not familiar, like swap or EXT4. The good news is that it’s unlikely that you will ever need multiple partitions.
![](http://i1-news.softpedia-static.com/images/news2/Ubuntu-14-04-LTS-vs-Windows-XP-Pros-and-Cons-430084-3.jpg)
*Ubuntu installation*
### Drivers ###
Windows users also need to install drivers for new components, like Webcams for example. Some are supported by the operating system, other need manual installation.
The only driver that you will have to worry in Ubuntu is the one for the graphics card. It’s not quite clear from where you can change it at first and installing a newer one might take some adjusting. The good news is the when you will learn how to add a PPA or how to upgrade your packages, everything will seem a breeze.
![](http://i1-news.softpedia-static.com/images/news2/Ubuntu-14-04-LTS-vs-Windows-XP-Pros-and-Cons-430084-4.jpg)
*Install proprietary drivers*
### Main interface ###
Ubuntu is somewhat different from Windows XP in terms of the general interface. Although it’s intuitive, some users might not want to invest the time to learn how to operate a new OS.
The good news is that Ubuntu has a lot of flavors that are a lot more similar with the way Windows XP looks, like Xubuntu or Lubuntu. Both are based on Ubuntu and feature pretty much the same software.
![](http://i1-news.softpedia-static.com/images/news2/Ubuntu-14-04-LTS-vs-Windows-XP-Pros-and-Cons-430084-5.jpg)
*Main Ubuntu desktop*
### Applications and security ###
Installing applications in Windows XP seem easy, right? Double click on a package, hit next a couple of time (agree to an EULA agreement you don't actually read), and everything is set.
In Ubuntu things are a lot easier. Just open Ubuntu Software Center and search for the application you want. Click install and you're done.
Installing applications in Windows XP could be very dangerous, especially after Microsoft will pull the plug and end the stream of security patches. On Ubuntu you will never get viruses or malware, and the number of viruses for the Linux platform is extremely small. Whenever a problem appears, it only takes the developers a short while to fix it.
The only drawback on Ubuntu is that you might not find all the applications you were used to on Windows XP. Most of the bigger apps are cross-platform, but on Ubuntu you might need to search for alternatives.
![](http://i1-news.softpedia-static.com/images/news2/Ubuntu-14-04-LTS-vs-Windows-XP-Pros-and-Cons-430084-6.jpg)
*Installing applications in Ubuntu Software Center*
### Gaming ###
Windows XP might seem a better platform for gaming, but the truth is that most game developers will soon stop to make their software compatible with a dying OS. Valve is putting a lot of effort towards the Linux platform and they are pushing the gaming industry in this direction.
Steam for Linux got more than 500 games in just one year and there is no sign that they are going to slow down. In the next couple of years, the Linux platform will surely be on par with any Windows OS. Adopting Ubuntu now and getting used to it, if you are a gamer, might a great idea.
![](http://i1-news.softpedia-static.com/images/news2/Ubuntu-14-04-LTS-vs-Windows-XP-Pros-and-Cons-430084-7.jpg)
*Portal 2 in Linux*
### Conclusion ###
If you are a Windows XP user and you have doubts about adopting Linux and Ubuntu, you might want to think twice about your decision to upgrade to Windows 7 or 8. Linux has it all and there is no good reason not to want an operating system based on it.
--------------------------------------------------------------------------------
via: http://news.softpedia.com/news/Ubuntu-14-04-LTS-vs-Windows-XP-Pros-and-Cons-430084.shtml
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[bazz2 hehehehehehe]
Usability and Open Source
================================================================================
The Linux Journal posted [an excellent article][1] today by [Jim Hall][2] about usability and open source software. Usability is far too often glossed over, or ignored completely in open source projects. Other times, usability is confused with design, and the thought that making something look pretty will have the same desired affect as making it easy to use. It is understandable that usability is often overlooked in open source projects. After all, developers already know how to use their own software, and are generally familiar with their chosen environment. Open source may well be about “scratching your own itch”, but if you would like your project to appeal to a wider audience, even an informal usability test could go a long ways.
In the article from the Linux Journal, Hall explained how he did a small usability test with a handful of college students. The students were mostly Windows users, and claimed to have little experience with computers. They were given a laptop running “Fedora 17 Desktop Edition”, and asked to perform a series of tasks with Gedit, Firefox, and Nautilus while Hall observed and took notes. The results showed that users were able to use each application to perform basic tasks, but became confused when asked to do something outside of the obvious functionality of the application. Users were able to navigate Firefox without issue, but had trouble changing the default font in Gedit, and creating a bookmark to a file in Nautilus.
The type of testing that Hall did is often the most useful, especially for developers. Users will do things with your application that you never dreamed of, and become confused with things that you think are as clear as the nose on your face. When I was in grad school we did usability testing using a commercial application called Silverback. The application would both record the screen and use the built in webcam to record the users face while the user accomplished the requested tasks. One of us would sit with the user and take notes during the session, and we would then review the video after the fact and count the number of mouse clicks and determine how much time the user spent accomplishing each requested task, or if they were able to accomplish it at all. The recording of the users face was extremely useful, especially when coupled with the notes taken during the test. Facial expressions would match up with notes like “seems to be confused on step 6”, and help show if and when in the process the user was becoming frustrated.
If you have never contributed to the open source community, this is a great place to start. Usability issues are bugs, the same as any other type of deficiency in the application. Anything that inhibits the user from using the software in the way they choose to accomplish the task at hand is a problem. If you are a developer, do yourself a favor and sit with an in experienced user and show them your software. Don’t teach, don’t coach, and don’t tell them where to click, just let them get lost and watch where it goes. You might find that you have a deeper understanding of your own project than you ever did before. If you would know your application, show it to someone else.
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via: http://ostatic.com/blog/usability-and-open-source
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[1]:http://www.linuxjournal.com/content/its-about-user-applying-usability-open-source-software
[2]:http://opensource-usability.blogspot.com/