Regex: Find usename inside a url

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I'm struggling with creating the correct REGEX pattern to find a username string in the middle of a url. In short, I'm working in Powershell and pulling down a webpage and scraping out the "li" elements. I write this to a file so I have a bunch of lines like this:

<LI><A HREF="/grouplist/expand-user/jimmysmith">Smith, Jimmy</A>&nbsp;

The string I need is the "jimmysmith" part, and every line will have a different username, no longer than eight alpha characters. My current pattern is this:


and I can use a "-replace $pattern" in my code to grab the "Smith, Jimmy" part. I have no idea what I'm doing, and any success in getting what I did get was face-roll-luck.

After using several online regex helpers I'm still stuck on how to just get the "string after the third "/" and up-to but not including the last quote.

Thank you for any assistance you can give me.

Try the following regex:


This wll capture the last string in href attribute of <a> tag.

regex: URL thingy with username, password, host and port – info , password, host and port. July 7, 2008 by Michael. Just in case i do keep forgetting that stuff, here's a regex for decoding urls like ftp://user:somepass@​somehost:someport. in Java: Integer.parseInt( : portMap.get(​protocol);  MAC OSX, PowerShell 6.1 Core. I'm struggling with creating the correct REGEX pattern to find a username string in the middle of a url. In short, I'm working in Powershell Core 6.1 and pulling down a webpage and scraping out the "li" elements.

I suggest you use an HTML parser instead. Try:

$html = New-Object -ComObject "HTMLFile"
$source = '<LI><A HREF="/grouplist/expand-user/jimmysmith">Smith, Jimmy</A>&nbsp;'
$html.links | % nameprop


Strip Twitter Username from Profile Field with URL and Save to New , The regex did not find the username, abort!!! return; } // The twitter username is now inside $twitter_username // lets add the extracted value to the users meta as​  Regex to find URL within text and make them as link. Some time back on the form somebody was looking for some help in searching URL within text and make those URLs as link. Me and that guy tried various regex but the one that worked out I thought to put it on the blog so that it can help me and others later.

Just simply to replace redundant strings.

'<LI><A HREF="/grouplist/expand-user/jimmysmith">Smith, Jimmy</A>&nbsp;' -replace ".*user/|`"\>.*"

If you have multiple lines, try this:

'<LI><A HREF="/grouplist/expand-user/jimmysmith">Smith, Jimmy</A>&nbsp;' -replace "^\<LI.*user/|`"\>.*"

Both work, tested.

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The answer to my question, was contained in this response by Sergio.

Try the following regex:


This will capture the last string in href attribute of <a> tag.

In search of the perfect URL validation regex, for a decent regular expression to validate URLs that were entered as user input with. In real-world usage, this modifier can be omitted. Here's a plain text list of all the URLs used in the test. These URLs should match ( 1 → correct) )+(aero|asia|biz|cat|com|coop|edu|gov|info|int|jobs|mil|mobi|museum|name|net|​org|  Honestly I always have to refer to the documentation or to past projects I’ve developed, just to grab the regex I need. So that’s why I thought about creating this post, to serve as a reference guide for common urls.

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lorey/social-media-profiles-regexs: Regular expressions for , This repository lists regular expressions to match and extract URLs of social 7 months ago #11 Regexes that filter username part from the regex Opened by part and www(host Name) in regex Opened by AKArunkumar almost 2 years ago. To find the URLs in a given string we have used the findall() function from the regular expression module of Python. This return all non-overlapping matches of pattern in string, as a list of strings. The string is scanned left-to-right, and matches are returned in the order found.

How to Use Regular Expressions for Page Targeting and IP Blocking, A Regular Expression, REGEX, is a special text string for describing a search pattern. within URLs for all of our tools except for Forms, as well as block IP addresses in at the end, then a visit to the same URL but without the forward-​slash wouldn't match.<user_id>/profile/(numeric user_id) This item is a PHP RegEx builder, which helps you to build Regular Expressions in an extensible PHP syntax. You can: Build Regular Expressions with an easy PHP syntax. Validate strings with the RegEx built. Build RegEx’s and get them. Apply preg_match to a RegEx. Replace a string with the RegEx built.

  • ($html.links | select nameprop).nameprop also
  • I'd suggest using the term "html parser" since parsing html with regex is a terrible idea. Also: $html.links.nameprop is equivalent to what you wrote.
  • @TheIncorrigible1 For some reason that didn't work for me, and I wasn't sure why. It should be equivalent but it wasn't returning data for me.
  • Which version of PS? Automatic enumeration wasn't added until v3. Alternative to what you wrote, I'd use |% nameprop (which is equivalent to | ForEach-Object -MemberName 'nameprop')
  • @TheIncorrigible1 I'm using 5.1 - I like that method though, I'll edit. It's a lot cleaner.
  • I've also tested and this works. I will use this answer. Thank you.
  • Don't use double quotes if you're not using any string expansion and you don't need escape characters.
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