For Wikipedia: A cheat sheet or crib sheet is a concise set of notes used for quick reference. “Cheat sheet” may also be rendered “cheatsheet”.
People working in informatics in general and on unix terminals in particular know that is not so easy remember every single command and so it’s usual to have “Cheat Sheet”, a collection of the most useful commands in a single A4 page for a particular program or environment.
And this is my small collection.
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In a previous article about 2 programs that you can use to collect network statistics: iptstate and pktstat, on the article I’ve received comments on nethogs and iptraf, and so I’ve tested them.
The goal of both applications is to give to the user information of the actual state of the network, so how much bandwidth is used and which process are using it. Another thing these two programs have in common is that they are text-based programs that you can use within the terminal, so you can use them at home on your desktop or on a server at work. Continue reading »
In this article i’ll show you how to select the best mirror for your favorite distribution.
Debian Netselect-apt is very helpful to find which Debian mirror is the fastest one to download the latest packages or to install ones very quickly.
To install it :
root@localhost:~# apt-get install netselect-apt
This package needs netselect to work successfully. neselect-apt will download the list of Debian mirrors and will ping them in a special manner thanks to the netselect command.
In a previous article i’ve wrote about creating qr code from the command line, but perhaps this is not always the preferred method for everyone.
So QtQR come to help us with a graphical frontend, QtQR is a GUI front-end for linux’s qrencode made in Python & Qt
Dependencies
zbar for decoding
PIL for decoding
PyQt4
Python 2.6
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The partitions that contains the ext3 and ext4 filesystems reserve the 5% of the total size of the filesystm by default. The idea here is even when you run out of disk space, the root user should still be able to log in and system services should still run. Without this option, the root user could be not able to acces and “clean up” since the system may become unstable, trying to log to in a filesytem full at 100%, for example. The other reason is to help the general optimization with less fragmentation of the filesystem.