Most of the time (though not always) the methods are the utilities. From https://github.com/mikemaccana/powershell-profile/#how-does-...

    $results = @{} 
    ls -recurse -filter "eslint-scope" | foreach { 
        $file = "${PSItem}\package.json" 
        $version = cat $file | convertfrom-json | select -ExpandProperty version 
        $results.Add($file,$version) } 
    echo $results | format-list

You don't have to pipe to 'select', 'where' etc - if you send something to grep or select-string you'll be looking for regexs bash-style.