History in sqlplus
October 18, 2008
I think the sqlplus command is the better app to Oracle DBA’s daily work. Since I do not working with complex pl/sql scripts, I prefer sqlplus too. However, sqlplus has not a history feature as psql (PostgreSQL) and mysql (MySQL) – when these tools are compiled with readline library.
It exits a trick to enable history in sqlplus. The “workaround” is known as rlwrap. So, how do I do it ?
<———–
rlwrap sqlplus
or
alias sqlplus='rlwrap sqlplus'
———–>
Try it also with rman command. 
You will save your time and your patience.
rlwrap: http://utopia.knoware.nl/~hlub/uck/rlwrap/
sqlplus documentation: http://download-west.oracle.com/docs/cd/B12037_01/server.101/b12170/toc.htm
Decompiling Python Bytecodes
October 16, 2008
Oh no ! I lost my python source code !!! And now ?
You can use an online Python Bytecode Decompiler (DePython) made by Team509, a chinese group (I guess).
Recently, I received this tip/trick site by Python-Brasil mailing list.
Online Decompiler: http://www.depython.net/
Author(s): http://www.team509.com/
Wikipedia says “Goodbye” to Fedora/RedHat
October 10, 2008
The battle between linux distros is quite old.
I remember since I began to hack Linux Systems (1998), the great scenario was:
1. Slackware vs Debian
2. RedHat vs SuSE
3. Mandrake vs Conectiva
And “1 x 2 x 3″… =]
And “1 x 2 x 3″ x Microsoft Windows… =D
My first distro was … oh, I began with FreeBSD, yeah ! And I love it…
Next, I moved to Slackware by obvious reasons and then to Debian/Gentoo…but I also worked with Conectiva, SuSE and RedHat (CentOS, Mandriva, Ubuntu-like, OpenSuSE, Librix and Fedora) in my different jobs.
When I received this notice by Fedora Ambassadors mailing list, it’s not surprised me. Today, this old battle seems to be ended and a convergence is emerging. I see Ubuntu conquering a great amount of space between beginners and advanced users and, of course, enterprise companies too.
Wikipedia moves to Ubuntu
The article: http://www.linuxworld.com.au/index.php/id;1474805050;fp;16;fpid;1
Reducing energy consumption with Google
October 4, 2008
Google is not just Search, GMail, Ads, Youtube…and contents a vague privacy policy.
Google also contributes with World education. ‘Cause if something affects the World, it will affect you too.
I was reading an article at Google Corporate and I found a interesting page talking about sustainable computing (“green computing“). I recommend reading this.
GNU’s 25th birthday party
October 1, 2008
Happy Birthday GNU !!!
In Setember 1983 was born a plan that later became GNU…
Download the video Happy Birthday to GNU (Stephen Fry) and see the history behind GNU and the Richard Stallman’s plan.
That’s all folks. =)
