Find and Replace using PowerShell

Below PowerShell will help you to find and replace values in your files.

$rootPath = "C:\myfolder\*.*"

$keyTofind ="UserName"

$keyToReplace  ="Ajeet"

$configFiles = Get-ChildItem -Path $rootPath -Recurse |

Foreach-Object {

    $r = ($_ | Get-Content)

        $r = $r -replace $keyToFind ,$keyToReplace

        [IO.File]::WriteAllText($_.FullName, ($r -join "`r`n"))

}

P.S. Get-Content read contents of file not folder. Please add *.* after your folder path, else you will receive Access dined error.

Use Recurse to go through all folders way under your root folder.