Question

我想从PowerShell中的字符串中解析出电子邮件地址。

例如，给定：

$email = "take this email test@mail.com"
$email2 = "secondmail@mail.com"
$email3 = "thirdmail@mail.com needs extracted"

我会得到：

test@mail.com
secondmail@mail.com
thirdmail@mail.com

所有这些字符串中的域都是相同的，它将始终是username@mail.com地址。

感谢您的帮助！

Answer 1

您可以使用此正则表达式为您的特定域名提取电子邮件。

\w+@mail.com

只要电子邮件中的用户名部分仅包含字母，数字和下划线即可。否则，您可能不必编写\ w这样的字符类，

[a-zA-Z0-9_.-]+@mail.com

就像您看到的那样，它包含字母，数字，破折号，点，连字符

Answer 2

受此答案启发

How to validate an email address using a regular expression?

和这个答案

Powershell: Extract text from a string

这将帮助...。

$email = "take this email test@mail.com"
$email2 = "secondmail@mail.com"
$email3 = "thirdmail@mail.com needs extracted"
$email4 = "fourthmail@mail.com and fifthmail@mail.com and sixthmail@mail.com"

$email_regex = "(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|`"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*`")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9]))\.){3}(?:(2(5[0-5]|[0-4][0-9])|1[0-9][0-9]|[1-9]?[0-9])|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])"

$extracted = [regex]::match($email, $email_regex).Value
$extracted

$extracted = [regex]::match($email2, $email_regex).Value
$extracted

$extracted = [regex]::match($email3, $email_regex).Value
$extracted

[regex]::matches($email4, $email_regex)|select value

最后一行显示了如何从一个文本中提取更多电子邮件

Answer 3

这是另一种方式：

$email = "take this email test@mail.com"
$email2 = "secondmail@mail.com"
$email3 = "thirdmail@mail.com needs extracted"

$array = @($email,$email2,$email3)

foreach($a in $array){

    $split = $a.Split(" ")
    $email = ($split | ? {$_ -match "@"})

    $email
}

Answer 4

这在PS中应该非常简单；

# initialize your string and pattern (you can choose your own pattern)
$message = "I'm a creep.1990_radio@gmail.com, I'm a wierdo_head@gmail.com"
$pattern = "([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5})"

# get all the matches and store it in an array
$results = ($message | Select-String $pattern -AllMatches).Matches

# iterate over array to act on those items
foreach ($item in ($results)) { Write-Host $item.Value }

在最后一行，您还可以使用Write-Host $item查看可用属性。

正则表达式-从PowerShell中的字符串中提取电子邮件地址

4 个答案: