Tag: PowerShell

Grep (Global Regular Expression print) command is a powerful text searching utility in Unix/Linux systems. Grep takes a pattern such as a regular expression or string and searches one or more input files for the lines that contain the expected pattern. Grep command can be significantly used for...

Introduction to PowerShell Execution Policies In PowerShell, execution policies are a safety feature designed to control the conditions under which PowerShell scripts run on a system. These policies are not exactly a security mechanism but are intended to serve the following...

The foreach loop in PowerShell enables you to iterate through all the items in a collection and execute a block of code for each element. For example, you can use a foreach loop to create a list of all files in a directory for an audit, display all the processes running on the system, or move old...

Why You Might Need to Pause or Delay in PowerShell Scripts The Start-Sleep cmdlet in PowerShell pauses the execution of a script and waits for a specified amount of time. Strategically using pauses can help ensure smooth functionality and prevent errors, especially in scripts that depend on...

A PowerShell function is a block of code designed to perform a specific task. Once a function is created and tested, it can be used in multiple scripts, reducing coding effort and risk of errors. Using well-named functions also makes scripts easier to read and maintain. And since functions can...

Introduction to PowerShell Environment Variables Environment variables are predefined variables in an operating system, they are available in the form of key-value pairs which store important system-level or user-specific information, such as paths, user configurations, and system settings....

PowerShell is a scripting language and command-line shell designed for task automation and configuration management, primarily used by system administrators and advanced users. Built on the .NET framework (.Net Core for PowerShell 7), it supports Windows, Linux and macOS. It enables automation of...

Introduction to Outputting in PowerShell Anyone familiar with PowerShell knows that the output of PowerShell commands is displayed in the terminal by default. However, there may be situations where you would want to redirect or save output to a file. Commands may return a large amount of...

Overview of AD Microsoft Active Directory is a directory service for Windows domain networks. Active Directory serves as a centralized database which stores information about network resources, including users, computers, and services. It plays a significant role in network management and...

Introduction In Windows system administration, one of the more advanced yet important tasks that can be accomplished using PowerShell is deleting registry keys and values. This operation requires careful handling to avoid unintended consequences. Registry keys and values in Windows are critical...