Replace the content of a textfile with a regex in powershell

powershell, regex

Solution

Yes, you can do that in one line and don't even need a pipeline, as `-replace` works on arrays like you would expect it to do (and you can chain the operator):

(Get-Content Input.json) `
    -replace '"(\d+),(\d{1,})"', '$1.$2' `
    -replace 'second regex', 'second replacement' |
  Out-File output.json

(Line breaks added for readability.)

The parentheses around the `Get-Content` call are necessary to prevent the `-replace` operator being interpreted as an argument to `Get-Content`.

Problem

I have a simple textfile and I need a powershell script to replace some parts of the file content. My current script is the following: ``` $content = Get-Content -path "Input.json" $content -Replace '"(\d+),(\d{1,})"', '$1.$2' | Out-File "output.json" ``` Is it possible to write it in one line without the content variable, like this? ``` Get-Content -path "Input.json" | ??? -Replace '"(\d+),(\d{1,})"', '$1.$2' | Out-File "output.json" ``` I don't know how I can use the output of the first get-content commandlet in the second command without the $content variable? Is there an automatic powershell variable Is it possible to do more replacements than one in a pipeline. ``` Get-Content -path "Input.json" | ??? -Replace '"(\d+),(\d{1,})"', '$1.$2' | ??? -Replace 'second regex', 'second replacement' | Out-File "output.json" ```

Original source