Helpful No-Fluff How-to Guides

“Definiteness of purpose is the starting point of all achievement.” — W. Clement Stone.

In Browsers, the Object “window” Represents the Global Scope

Any variable or function that's available in the global scope is available from the window object. This is where they're sourced. For instance, "console.log"...

How to Compress and Optimize Your Images

To compress your images from the Linux command line, you'll need two programs -- one for *.jpg file types and one for *.png file types. jpegoptim (for...

How to Measure Code Execution Time Accurately in Python

If you've ever wanted to test the performance of two algorithms using Python, you should read Bernhard Knasmueller's recent article on measuring Python...

How to Filter “access.log” Columns Using AWK

If you've administered a web server, you've undoubtedly encountered its access log. By default, nginx web servers maintain the log at "/var/log/nginx/access.log,"...

What the $!$*$@ … Bash Shell Variables

There's nothing complex about Bash shell variables, but they're also not something you'd likely memorize. Frankly, they're just not that interesting....

12 Important MySQL Commands You Should Know

MySQL is the world's most widely used relational database management system (RDMS), maintaining greater than 40% market penetration and leveraged by a...