I need to read with powershell a lot of files and getting all email address. I tried this solution
$myString -match '\w+@\w+\.\w+'
The problem is that the variable $matches contains only the first match.
Am I missing something?
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You have another problem you haven't noticed yet - your regex will miss valid email addresses, and probably match invalid ones. It's not a simple regex that matches valid email addresses - and it's a topic that comes up here on SO quite frequentlyalroc– alroc2013-03-20 12:40:58 +00:00Commented Mar 20, 2013 at 12:40
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@alroc Thanks for your observation. In fact I'm using a different regex to find email addresses. Here it's only an example, just to understand the problemNaigel– Naigel2013-03-20 12:51:42 +00:00Commented Mar 20, 2013 at 12:51
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2 Answers
-match returns strings with the content, so it works better with a string-array where it can find a match per line. What you want is a "global" search I believe it's called. In PowerShell you can do that using Select-String with the -AllMatches parameter.
Try the following:
(Select-String -InputObject $myString -Pattern '\w+@\w+\.\w+' -AllMatches).Matches
Example:
$myString = @"
[email protected] hhaksda [email protected]
dsajklg [email protected]
"@
PS > (Select-String -InputObject $myString -Pattern '\w+@\w+\.\w+' -AllMatches).Matches | ft * -AutoSize
Groups Success Captures Index Length Value
------ ------- -------- ----- ------ -----
{[email protected]} True {[email protected]} 0 14 [email protected]
{[email protected]} True {[email protected]} 23 15 [email protected]
{[email protected]} True {[email protected]} 48 15 [email protected]
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The Select-String approach works well here. However, this regex pattern is simply not suitable and you should review the following similar question: Using Regex in Powershell to grab email
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