查找帶有下劃線或破折號的小寫字母序列的腳本

我是在powershell中編寫腳本的新手，甚至更多的是正則表達式，請幫助實現。

例子：

PS > .\test.ps1 "A Balrog is a powerful fictional monster in Middle-earth."
return: Middle-earth

或者

PS >.\test.ps1 "The symbol underscore, also called low_line or low dash."
return: low_line

當然我試圖找到解決這個問題的方法，這是我的解決方案：

#$data = $args[0]

$p = '\w*[-_]\w*'

Select-String -Path .\content.txt -Pattern $p | % {$_ -match $p; $matches.Value}

Write-Output $matches

============================================ 更新：找到解決方案

$data = $args[0]

$pattern = '\w*[-_]\w*'

$matches = [regex]::Matches($data, $pattern).Value

Write-Output $matches

引用自：https://serverfault.com/questions/1050225