Head Tracking for iPad: Glasses-Free 3D Display (Demo)

How to add and modify applications in the slingshot launcher of elementaryOS

Open up a terminal and type:


sudo apt-get install --no-install-recommends alacarte

Now, we're going to make alacarte work with slingshot. Type this in a terminal:

sudo scratch-text-editor /usr/share/alacarte/Alacarte/MenuEditor.py

This will open up a text file. Hit ctrl+F to search for 'applications.menu' and replace all with 'pantheon-applications.menu' (you have to replace applications.menu twice in the file). When done, close the file.

Now start the menu editor by typing 'alacarte' in slingshot or in a terminal

Gdk Gtk warnings and errors from the command line

The Unable to locate theme engine in module_path: "pixmap" messages are a known bug.

To fix it, install the gtk2-engines-pixbuf  package

How to Tail a Directory in Linux

watch "ls -lrt | tail -10"

http://jamesseibel.com/blog/?p=11

Save jQuery active tab

$("#tabs").tabs({
activate: function (e, ui) {
 $.cookie('selected-tab', ui.newTab.index(), { path: '/' });
},
active: $.cookie('selected-tab')
});

How to remove kernels from previous release?

Open terminal and check your current kernel:

uname -r
DO NOT REMOVE THIS KERNEL!

Next, type the command below to view / list all installed kernels on your system.

dpkg --list | grep linux-image
Find all the kernels that lower than your current kernel. When you know which kernel to remove, continue below to remove it. Run the commands below to remove the kernel you selected.

sudo apt-get purge linux-image-x.x.x.x-generic
or
sudo apt-get purge linux-image-3.2.0-3{0..5}-generic

Finally, run the commands below to update grub2

sudo update-grub2
Reboot your system.

Copy the public key to remote-host using ssh-copy-id

ssh-copy-id -i ~/.ssh/id_rsa.pub remote-host

more in:

http://www.thegeekstuff.com/2008/11/3-steps-to-perform-ssh-login-without-password-using-ssh-keygen-ssh-copy-id/

xubuntu 12.10 mining bitcoin

Follow this tutorial:
http://www.distrogeeks.com/install-cgminer-latest-ubuntu/

but use amd sdk 2.7
2.8 don't work for me.

sendemail: invalid SSL_version specified at /usr/share/perl5/IO/Socket/SSL.pm line 332

sudo aptitude install sendemail

sudo aptitude install libio-socket-ssl-perl

sendEmail -f xxx@gmail.com -t xxx@gmail.com -u Teste_Assunto -m Teste_Corpo -s smtp.gmail.com:587 -xu xxx_conta -xp xxx_senha -o tls=yes

if you have this error:
invalid SSL_version specified at /usr/share/perl5/IO/Socket/SSL.pm

The SSL_version is being coded as "SSLv3 TLSv1" and the regular expression is failing. I hacked it as a workaround as follows... change:
m{^(!?)(?:(SSL(?:v2|v3|v23|v2/3))|(TLSv1[12]?))$}i 
 to:
m{^(!?)(?:(SSL(?:v2|v3|v23|v2/3))|(TLSv1[12]?))}i

That did the trick for me.

Apagar ficheiros duplicados

sudo aptitute install fdupes
fdupes -r /home > dupes.txt
fdupes -r -d /home

Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName on Xubuntu

sudo sh -c 'echo "ServerName localhost" >> /etc/apache2/conf.d/name' && sudo service apache2 restart

Changing DNS in Ubuntu >= 12.04

sudo sublime-text /etc/dhcp/dhclient.conf
prepend domain-name-servers 8.8.8.8, 8.8.4.4;
sudo resolvconf -u

Can't exec "libtoolize" on Ubuntu

sudo apt-get install aptitude
sudo aptitude install libtool

bitcoin - pool management - cgminer or bfgminer

To ADD a Pool
After the miner has started
1. Press P to access pool management
-- press A to add a pool
-- enter URL of the pool (press Enter)
-- enter "worker" name or username at your pool (press Enter)
-- enter password for that worker (press Enter)
2. Press S to access Settings to save your config file
-- press W to write the file
-- press Enter for bfgminer.conf or choose another file name


To REMOVE a Pool
After the miner has started
1. Press P to access pool management
-- press R to remove a pool from the list above
-- enter the # of the pool you want to remove (again, see list above, it should start with 0: Enabled GBT ...)
2. Press S to access Settings to save your config file
-- press W to write the file
-- press Enter for bfgminer.conf or choose another file name

http://gawker.com/5992398/the-unbelievable-photos-taken-by-the-crazy-russians-who-illegally-climbed-egypts-great-pyramid

http://aws.typepad.com/aws/2013/03/aws-cloud-hsm-secure-key-storage-and-cryptographic-operations.html

http://identity.mozilla.com/post/46374271364/persona-is-distributed-today

xubuntu brightness

sudo su
root@xubuntu:/home/pedro/Dropbox/www/kits# echo 10 > /sys/class/backlight/acpi_video0/brightness

How to detect if datatables is loaded

if($.fn.dataTableExt){
console.log('datatables ok');
}else{
console.log('datatables ko');
//head.ready(function() {head.js("js/libs/jquery.dataTables.min.1.9.4.js")});
}

How do I check if I have a 32-bit or a 64-bit OS?

uname -a

sqli

%20and%20benchmark(20000000%2csha1(1))--%20

ex:
editGroup=1%20and%20benchmark(20000000%2csha1(1))--%20