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More Awk with CSV/DSV files

Sunday, January 13th, 2013

CSV/DSV Basics CSV = Comma Separated Values DSV = Delimited Values, i.e. comma (,), pipe (|), tab ‘\t’, etc. Why Use Awk? The approaches used by most scripting languages are quite similar – understand one and picking up another is usually pretty easy; Awk, while perhaps ‘syntax-querky’, is relatively easy to work with. While there Continue reading →

Outlook 2002 Contacts CSV to vCard via Bash & Awk

Saturday, December 22nd, 2012

Yes, I know you can import stuff easily into ‘the cloud’ – I don’t care to share my contacts (directly) with any ‘cloud vendor’; I simply want to move my contacts from my old Cellphone to my new Android phone. Exporting a contact list from Outlook (Ancient version, 2002) is simple using CSV (comma separated Continue reading →

WordPress – BotNet Login Hacking Attacks

Friday, May 11th, 2012

So, why should you use login restrictions or a Login monitor (plugin or other solution) for your WordPress site? Just one reason – from one day of web logs for one domain – there were no successful logins during this ‘attack’. 5/9/2012 Fail | Start/Stop | IP address | GeoIP Info —–|——————-|—————–|—————————————-   1.    1 Continue reading →

Creating A Custom Hot to Cold Temperature Color Gradient for use with RRDTool

Wednesday, May 9th, 2012

It seemed like a simple idea – write a script to generate a color gradient (hot to cold, i.e. Violet -> Red -> Orange -> Yellow -> Green -> Blue) that I could just ‘plugin’ and use. After spending some time with this the solution is simple a custom choice.  I found that some gradients Continue reading →

Creating Color Gradients with RRDTOOL & Bash (using temperatures)

Thursday, May 3rd, 2012

You would think that it would be easy to locate just about any information on the Internet but that’s simply not true.  While I found many examples (using various approaches) of generating graphs with gradients using rrdtool I did not locate any dynamic solutions, i.e.: I have data in multiple RRDs, I need to extract Continue reading →

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