CMD

In modern IT, we rarely work in a pure environment. While PowerShell is the superior tool for structured automation, we often need to interact with other shells: Bash on Linux and CMD on Windows. Instead of choosing between them, a true power user masters their interoperability. This guide covers the essential “bridging” techniques to make these shells work together, built on one central concept. Part 1: The Core Concept - Objects vs. Text Understanding interoperability is simple if you remember one rule: PowerShell works with Objects; Bash and CMD work with Text. ...

Error on WSL I might encounter this error when trying to open my Linux distribution: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. Error code: Wsl/Service/0x8007274c What Is This Error in WSL? The error message: “Error code: Wsl/Service/0x8007274c” is a Windows networking timeout (SocketException 10060 / HRESULT 0x8007274c). In the context of Windows Subsystem for Linux (WSL), it means that wsl.exe cannot connect to the WSL service or the Linux VM backend (WSL - 2). ...

The Windows Defender Firewall is a critical component of Windows security, controlling inbound and outbound network traffic to protect my system from unauthorized access and malicious activity. While often misunderstood, managing it effectively is essential for both security and application functionality. This post clarifies the distinction between “Windows Firewall” and “Windows Defender Firewall,” and provides command-line and PowerShell methods to manage its state (on/off) and configure rules. 1. “Windows Firewall” vs “Windows Defender Firewall” The naming of Windows’ built-in firewall can be a source of confusion, but the reality is simpler than it seems. ...

When writing portable scripts, one of the first challenges is locating files relative to the script itself. Whether in PowerShell or a classic Batch file, I need a reliable way to find my script’s “home” directory. This guide breaks down the two most important tools I use for this job: $PSScriptRoot for PowerShell and %~dp0 for Batch. 1. The Batch Method cd /d %~dp0 In Windows Batch scripting (.bat, .cmd), the magic variable %~dp0 is the standard for getting the script’s directory. I often use it with cd to change the working directory. ...