Want the latest of the latest updated bleeding edge graphic drivers in Ubuntu?
Open /etc/apt/sources.list:
sudo gedit /etc/apt/sources.list
Add these lines at the bottom:
deb http://ppa.launchpad.net/xorg-edgers/ubuntu lucid main deb-src http://ppa.launchpad.net/xorg-edgers/ubuntu lucid main
Update and upgrade:
sudo apt-get update sudo apt-get upgrade
If you don’t use Lucid (Ubuntu 10.04) just change “lucid” to what ever you use, for example ‘karmic’.
Enjoy :)
Here’s a function to create a random string with the chars ‘a’ to ‘z’, ‘A’ to ‘Z’ and 0 to 9 in PHP.
I have seen many people asking for this, so here it is:
<?php
function randStr($length, $str='') {
$array = array_merge(range('a', 'z'), range('A', 'Z'), range(0, 9));
for($i = 0; $i < $length; $i++) {
$str .= $array[rand(0, (count($array) - 1))];
}
return $str;
}
?>
This is a code from my Twitter client for how to send a Http request from C++/Qt4 to add your status message…
It used the QNetworkAccessManager class instead of the deprecated QHttp.
#include <QtCore>
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
void main(int argc, char ** argv)
{
QString unescaped = "<My status update!>";
QString data = "status=" + QUrl::toPercentEncoding(unescaped.toLatin1());
QString auth = "<Username>" + ":" + "<Password>";
QString encryptedAuth = auth.toAscii().toBase64();
QNetworkAccessManager* manager = new QNetworkAccessManager(this);
QNetworkRequest request;
QNetworkReply *reply;
request.setUrl(QUrl("http://twitter.com/statuses/update.xml"));
request.setRawHeader(QByteArray("Host"), "twitter.com");
request.setRawHeader(QByteArray("Content-Type"), "application/x-www-form-urlencoded");
request.setRawHeader(QByteArray("User-Agent"), "Mozilla");
request.setRawHeader(QByteArray("Authorization"), "Basic " + encryptedAuth.toAscii());
QByteArray postData(data.toLatin1(), data.length());
reply = manager->post(request, postData);
}
Today I opened my favorite web browser Chrome and then suddently I heard the Pac-man theme melody and there it was, a pac-man game as the Google logo written in HTML5 to celebrate Pacman’s 30th birthday. I also noticed a nice virtuel keypad as shown in the screenshot down the page, but only in the Norwegian google site (google.no).
I guess this is to show the world the power of HTML5 and that the developement are highly in progress :)
Hit insert coin, and you will get Ms. Pac-man which you control with the asdf buttons :)
Having trouble cleaning up space for your Ubuntu installation?
I only have a 4GB SSD drive on my Lenovo S10e netbook, so I have the problem myself. Here are some handy tips for you!
sudo apt-get autoremove
Basically it clears up the ‘/var/cache/apt/archives/’ and ‘/var/cache/apt/archives/partial’ folders
sudo apt-get clean
sudo apt-get autoclean
This will remove unneeded locale files and localized man pages.
sudo apt-get install localepurge
Run it:
localepurge
A window will pop up. There choose your language. I use English, therefor I chose “en”.
Ignore the capitalized ones.
It shows you which packages that have no other packages depending on them.
sudo apt-get install deborphan
Run it:
sudo deborphan | xargs sudo apt-get -y remove --purge
sudo find /var/log -type f -exec rm {} \;
sudo rm -rf /usr/share/doc/*
Check what kernel you are using:
uname -r
Goto System->Administration->Synaptic Package Manager
Search for “Linux” and mark all Linux header/kernel files which you are not currently using for complete removal. Then hit ‘apply’.