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Archive for January, 2010

Installing cx_Oracle on Ubuntu Karmic Koala, 64 bit

Friday, January 29th, 2010

I'm using Oracle 10g, but you're free to download any other versions that you want.

wget http://prdownloads.sourceforge.net/cx-oracle/cx_Oracle-5.0.2-10g-py26-1.x86_64.rpm?download
# We should use alien but it didn't work for me.
rpm2cpio cx_Oracle-5.0.2-10g-py26-1.x86_64.rpm | cpio -id
sudo cp usr/lib64/python2.6/site-packages/cx_Oracle.so /usr/lib/python2.6
# Go to the Oracle Instant Client download page and accept their fucking license, then download Instant Client Package - Basic for version 10.2.0.3, that is instantclient-basic-linux-x86-64-10.2.0.3-20070103.zip
unzip instantclient-basic-linux-x86-64-10.2.0.3-20070103.zip
sudo cp instantclient_10_2/{libclntsh.so.10.1,libnnz10.so} /usr/local/lib
sudo ldconfig

Installing such proprietary shit like Oracle (related software) is a bad experience too many times.

Posted in Hacking, My HOWTOs | No Comments »

Lock your laptop and turn off display with the touch of a keystroke in Ubuntu Karmic

Tuesday, January 12th, 2010

I think this feature will soon be standard in Ubuntu as many users requested it. It's absolutely mandatory for me because every time I leave my laptop I carry out this action, even at home. Yeah, call me paranoid...

I've written a simple script to deal with the issue:

#!/bin/bash
gnome-screensaver-command -l
sleep 3
xset -display :0.0 dpms force off

You're encouraged to bind it to any key combo. It should work perfectly out of the box but a gnome-power-manager related bug enables the display some seconds or minutes later randomly, so we have to

killall gnome-power-manager

and it should be pretty fine. For those who can't afford to live without gnome-power-manager an alternative (and in my opinion suboptimal) workaround exists.

Posted in Hacking | No Comments »