In the VMWare vSphere Client interface you can search virtual machines by their names only. But in some cases it is necessary to find the specific VMWare virtual machine by its IP or MAC (NIC hardware) address. This can be easily done by PowerCLI, provided that the VMware Tools are installed in each VM.

The Bash array variables come in two flavors, the one-dimensional indexed arrays, and the associative arrays. The indexed arrays are sometimes called lists and the associative arrays are sometimes called dictionaries or hash tables. The support for Bash Arrays simplifies heavily how you can write your shell scripts to support more complex logic or to safely preserve field separation.

This guide covers the standard bash array operations and how to declare (set), append, iterate over (loop), check (test), access (get), and delete (unset) a value in an indexed bash array.

CSS position sticky has really good browser support, yet most developers aren’t using it. The reason for that is twofold: First, the long wait for good browser support: It took quite a long time for browser support to happen, and by the time it did the feature was forgotten. The second reason is that most developers don’t fully understand the logic behind how it works, and that’s where I come in.