This example demonstrates a PowerShell script that processes a text file by replacing caret characters with semicolons and writes the result to a new file. It shows a batch text-transformation workflow using the `Get-Content` cmdlet to read input in chunks of 1000 lines, a custom filter function `replace-chars` that applies the `-replace` operator, and `Add-Content` to append the processed lines to the output file. The script first checks if the output file exists and clears it to ensure a fresh write. The approach highlights pipeline-based file handling and character encoding preservation without additional libraries.