By default, $ matches carriage return+linefeed (\r\n). (Windows-based text files usually use \r\n as line terminators, while Unix-based text files usually use only \n.) .PARAMETER Overwrite Overwrites a file by creating a temporary file containing all replacements and then replacing the original file with the temporary file.. Powershell Replace Character in String. In PowerShell we can use the Replace() method on any string or variable that is a string. The method needs two arguments, the text or character that you want to find and the with what you want to replace it with. Explaining the PowerShell Replace function is best done with examples, so let's start with.
Perhaps we've got a text file with a single sentence in it: "The quick brown fox jumped over the lazy dog." In this text file, I'd like to replace the word "brown" with "white." To do that, I'll first need to read the text file using the Get-Content cmdlet. PS C:\> Get-Content -path C:\ReplaceDemo.txt The quick brown fox jumped over the lazy.. How to Replace Text in a File Using PowerShell. Now, let us check out different methods to replace text in a file using PowerShell. 1. Using the -replace Operator. The -replace operator is one of the most straightforward methods to replace text in PowerShell. It uses regex (regular expressions) to identify and replace text patterns.