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Cozumpark Bilisim Portali
How to parse a web page and find a specific info with Powershell
Posted in Windows Powershell | No Comment | 13,797 views | 07/06/2009 10:44

This is most exciting post on Powershell for me. Now I’ll get content of a web page and find a user id.

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# Download source code of the web page.
$url = "http://www.yusufozturk.info/wp-content/uploads/2009/06/sample_parse_page.html"
$webclient = new-object System.Net.WebClient
$webpage = $webclient.DownloadString($url)
$webpagetxt = "C:\webpage.timestamp.txt"
$webpage > "$webpagetxt"
 
# Parse web page and find user id.
$pattern = Select-String "$webpagetxt" -pattern '<a id="rpBasv_hlUserInfo" class="text" href="/user/user_info.aspx'
$pattern = $pattern.get_Line() -replace "\s",""
$userid = $pattern.TrimStart('<td><a id="rpBasv_hlUserInfo" class="text" href="/user/user_info.aspx?uid=')
$userid = $userid.SubString(0,4)
 
# Show user id
Write-Host User id: $userid

If it works for you, you see user id as “2512”.



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