Minding the gap between administration and development
When you create a snapshot of a virtual machine in Microsoft Hyper-V, a new file is created with the .avhdx file extension. The name of the file begins with the name of its parent VHDX file, but it also has a GUID following that, uniquely representing that checkpoint (sometimes called snapshots). You can see an … Read moreMerge AVHDX Hyper-V Checkpoints
This will be a fairly brief article that talks about single quotes vs. double quotes in the PowerShell automation language. Single Quotes In PowerShell, single quotes are commonly used to define string literals. If you want to include a single quote inside of a single-quoted string literal, then you simply put two single quotes next … Read moreA Story of PowerShell Quoting Rules
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Introduction Software developers, infrastructure & DevOps engineers, and operational IT staff are heavy users of the command line. The benefits of the command line are clear: Commands are / should be readable Commands are repeatable Commands can be shared amongst a team (eg. via source control / chat / etc.) Automation is scalable across many … Read moreDesigning Command Line Tool User Experience
I’ve been using the Digital Ocean Virtual Private Server (VPS) host on and off for a few months now, and I must say, they are incredibly easy to use! First of all, their web UI is simple, easy to use, and dare I say, enjoyable to use. They have one, and only one, core service: Droplets. … Read moreDigital Ocean Droplet – Linux VPS Review
I recently installed a couple packages that I didn’t need any longer on an Ubuntu Linux system. Most likely, you’ve installed packages using apt install or apt-get install. However, neither of these commands offer a command that lists out the packages that you’ve installed. To list out the installed packages, you use the dpkg command … Read moreFind and Remove Package on Ubuntu Linux
I recently was trying to install Ubuntu Desktop 16 under a Hyper-V VM on Windows 10. Naturally, I downloaded the ISO image for the operating system, mounted it to a new Generation 2 Virtual Machine, and then proceeded to boot the VM. Unfortunately the VM was unable to boot to the setup media, due to … Read moreHyper-V SecureBoot Error
If you have a file with repeated lines, and you want to remove duplicate lines, you can use the uniq command. The description of this utility, from its man page is simply: “report or omit repeated lines.” Consider the following example: trevor@MyUbuntuVM:~$ echo “this is is great” | uniq The output of the above command looks … Read moreSelect Unique Lines in Bash on Linux
Microsoft Azure recently introduced a new feature called Azure Functions. This service is, in some ways, very similar to the Amazon Web Services (AWS) Lambda service. Both services enable software developers to create scalable microservices using a Platform-as-a-Service (PaaS) model. In Microsoft Azure, the Functions feature is actually a component of the Azure App Service … Read moreAzure Functions Error Message
If you’re looking for a solution to find large files (high disk utilization) on Windows 10, you’re in luck! In fact, you can even do this from the Ubuntu on Windows Bash console. There’s a tool called ncdu, which is short for nCurses du. “du” refers to the “disk utilization” tool that has been available on … Read morencdu: Identify Large Files on Windows 10