Windows/powershell

powershellインストール

https://docs.microsoft.com/ja-jp/powershell/scripting/install/installing-powershell-core-on-macos?view=powershell-7.1

macであれば、powershell-x.x.x-osx-x64.pkg をDL

テキスト文置換

aaaをcccへ置換

$data = Get-Content hoge.txt | % { $_ -replace "aaa", "ccc" }
$data | Out-File hoge.txt

参考：https://teratail.com/questions/290149