Analyzing data in Unix using PHP CLI.

There are times when I need to quickly gather some quick data in a simple tab based or space based delimited file, most often log files. Also, the files that I work on are often huge, well according to my standard at least … about 1GB. The data that I need is often simple statistics […]

Posted on February 4th, 2009 under General Unix, PHP • No Comments

Ubuntu + Virtualization + Windows on HP TX1499US Laptop

I have HP TX1499US that I purchased off Home Depot a while back. I thought it was a very good deal for a tablet PC, with touch screen, with smaller screen (12.1"), with the stuff it comes with. One thing that I’m not really excited about is the OS it came with: Windows Vista. I […]

Posted on January 25th, 2009 under Linux, Virtualization, Windows • No Comments

Floyd-Warshal algorithm in PostgreSQL PL/pgSQL.

This article is an extension of my previous article . This time, however, I will write the algorithm completely in PostgreSQL’s PL/pgSQL. For background information and to understand the premise of this post, please glance through my previous post. Ok now that you’re familiar with what we’re working towards, here’s my assumption of your database […]

Posted on January 24th, 2009 under General / Algorithm, PostgreSQL, Programming • 1 Comment

Installing Ubuntu Linux on HP TX1499US

I previously installed Ubuntu 7.10 on my other laptop (HP DV6305US) and I had to pass kernel argument noapic during boot, otherwise Linux will hang on booting. Now that Ubuntu 8.10 is out and I have new tablet PC style HP TX1499US, I thought I’d install Ubuntu 8.10 on it. As it turns out, I […]

Posted on January 23rd, 2009 under Linux • No Comments

Clearing print spool queue in Windows.

One of my customer had problems printing on Windows on a particular workstation. Whenever a print command is issued, it just sits on the queue without getting printed out. It turned out that the culprit is a print job stuck in print queue. So here’s how to fix it: Go to control panel and double […]

Posted on January 23rd, 2009 under Windows • 1 Comment

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