Microsoft has transitioned from the traditional command prompt to Windows PowerShell, a command-line interface tool designed for scripting and task automation. Key commands in PowerShell include:
1. Get-Process: Retrieves information about processes running on a local computer or a remote server, including process names, IDs, CPU usage, and memory consumption. Example usage includes filtering processes by memory usage or specific applications.
2. Get-Command: Lists all available commands within PowerShell, including cmdlets, functions, aliases, and scripts. It helps users discover commands for specific tasks.
3. Set-ExecutionPolicy: Configures the PowerShell script execution policy, determining whether scripts can run and under what conditions. It allows power users to adjust policies for executing custom scripts.
4. Get-EventLog: Accesses detailed system logs for troubleshooting errors or auditing system activity, including warnings and security breaches. It can filter logs based on criteria like log name and entry type.
5. Where-Object: Filters objects in a pipeline based on specified conditions, allowing users to narrow down results for analysis, reporting, and automation. It can be combined with other commands for enhanced functionality.