The script is very simple and can be found on my graphic-3d.blogspot.com.
I make this with Python 2.6.4 , pyopengl module.
Monday, May 21, 2012
News: Working with python , opengl and ARB ...
Today I test a simple script that uses the OpenGL ARB "Architecture Review Board".
The script is very simple and can be found on my graphic-3d.blogspot.com.
I make this with Python 2.6.4 , pyopengl module.
The script is very simple and can be found on my graphic-3d.blogspot.com.
I make this with Python 2.6.4 , pyopengl module.
Sunday, April 1, 2012
Fedora online defragmenter for ext4 filesystem
The tool is e4defrag.
The man page tells us: reduces fragmentation of extent based file.
The file targeted by e4defrag is created on ext4 filesystem made with "-O extent" option (see mke2fs(8)). The targeted file gets more contiguous blocks and improves the file access speed.
Let's try this tool.
You can try under root account this:
The final result on my account is :
Also, you have to run e4defrag with the -test parameter for now, since it isn't a fully tested version.
The man page tells us: reduces fragmentation of extent based file.
The file targeted by e4defrag is created on ext4 filesystem made with "-O extent" option (see mke2fs(8)). The targeted file gets more contiguous blocks and improves the file access speed.
Let's try this tool.
You can try under root account this:
# e4defrag -test -cv /home/your_user/
The final result on my account is :
Total/best extents 170276/165520
Fragmentation ratio 0.03%
Fragmentation score 0.24
[0-30 no problem: 31-55 a little bit fragmented: 55- needs defrag]
Also, you have to run e4defrag with the -test parameter for now, since it isn't a fully tested version.
Labels:
defragmenter,
Fedora 16,
linux,
linux tools
Monday, February 27, 2012
The LightScribe - without labels and handwriting.
LightScribe is an innovative technology that uses a special disc drive, special media, and label-making software to burn labels directly onto CDs and DVDs.
Download the packages from here.
Use the root account and install this packages :
See the files:
Insert the special media in the special disc drive with the face down.
This is a way to not use labels and handwriting.
Download the packages from here.
Use the root account and install this packages :
# rpm -ivh lightscribe-1.18.24.1-linux-2.6-intel.rpm
Preparing... ########################################### [100%]
1:lightscribe ########################################### [100%]
# rpm -ivh lightscribeApplications-1.18.15.1-linux-2.6-intel.rpm
Preparing... ########################################### [100%]
1:lightscribeApplicationswarning: group admin does not exist - using root%)
warning: group admin does not exist - using root
########################################### [100%] See the files:
$ ll
total 332
drwxr-xr-x. 4 root wheel 4096 Feb 27 14:10 content
-rwxr-xr-x. 1 root wheel 2980 May 19 2010 launchBrowser.sh
drwxr-xr-x. 3 root wheel 4096 Feb 27 14:10 plugins
-rwxr-xr-x. 1 root wheel 43 May 19 2010 qt.conf
-rw-r--r--. 1 root root 16 May 19 2010 qttr.qm
-rwsr-xr-x. 1 root wheel 314088 May 19 2010 SimpleLabeler
-rw-r--r--. 1 root root 16 May 19 2010 simplelabelertr.qm Insert the special media in the special disc drive with the face down.
This is a way to not use labels and handwriting.
Labels:
Fedora,
lightscribe
Saturday, February 18, 2012
G'MIC plug-in for GIMP.
GIMP is an acronym for GNU Image Manipulation Program and it has many capabilities.
One best feature is the plugins system. Plugins may be stored in different locations depending upon your distribution.
The author of G'MIC plug-in tell us: The G'MIC plug-in for GIMP proposes a set of various filters to apply on your images, including artistic effects, image denoising, and enhancement algorithms, 3D renderers, etc.. It is a quite large plug-in, integrating a lot of different effects.
You can download the G'MIC plug-in from here.
Unzip the file and go to the folder where is the gmic_gimp file.
Use this command to copy the file in the plug-ins folder.
The G'MIC will work just if you have opened an image.
You can find it on menu: Filters-> G'MIC... Also, the G'MIC plug-in has available 284 filters.
One best feature is the plugins system. Plugins may be stored in different locations depending upon your distribution.
The author of G'MIC plug-in tell us: The G'MIC plug-in for GIMP proposes a set of various filters to apply on your images, including artistic effects, image denoising, and enhancement algorithms, 3D renderers, etc.. It is a quite large plug-in, integrating a lot of different effects.
You can download the G'MIC plug-in from here.
Unzip the file and go to the folder where is the gmic_gimp file.
Use this command to copy the file in the plug-ins folder.
$ cp gmic_gimp ~/.gimp-2.6/plug-ins/The G'MIC will work just if you have opened an image.
You can find it on menu: Filters-> G'MIC... Also, the G'MIC plug-in has available 284 filters.
Saturday, November 26, 2011
Protect your root account.
I will present a solution to protect the root account, quite funny but still elegant.
You can read about the command trap using: man trap.
What is this command?
when the specified event will occur will execute the command specified.
In this case, it will receive signal respectively will execute one command - exit
The source code.
Now protect the file against unauthorized changes:
You can read about the command trap using: man trap.
What is this command?
when the specified event will occur will execute the command specified.
In this case, it will receive signal respectively will execute one command - exit
The source code.
protect()
{
echo "What is the secret ?"
trap protect 2 20
read -s resp
if [ "$resp" != "asd" ]; then
echo "Error!"
exit
fi
}
protect
Now protect the file against unauthorized changes:
# chmod 700 /root/.bashrc
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