I've been trying to extract the value associated with a specific input field named 'key' from the HTML on a webpage, but I'm not having any luck. I'm using the following PowerShell code to fetch the HTML content:
```powershell
$url = 'https://myurl.com'
$content = Invoke-WebRequest -Uri $url -Method get -UseDefaultCredentials
Write-Host $content
```
The HTML structure I receive includes multiple `` elements within a `` tag. Specifically, I'm looking to retrieve the value for the 'key' input (which looks like this: ``). Can anyone guide me on how to do this in PowerShell?
1 Answer
You can easily extract input values using regex capture groups. Here's a quick snippet that should help:
```powershell
$Result = $content | Select-String -Pattern '<input type="(.*?)" name="(.*?)" value="(.*?)"' -AllMatches
foreach ($Match in $Result.Matches) {
[pscustomobject]@{
InputType = $Match.Captures[0].Groups[1]
Name = $Match.Captures[0].Groups[2]
Value = $Match.Captures[0].Groups[3]
}
}
```
This code assumes the input fields maintain a consistent order, so make sure to adapt it if your HTML changes!
Got it to work! I simplified my regex to just this and it works perfectly:
```powershell
$Result = $content | Select-String -Pattern 'name="key" value="(.*?)"' -AllMatches
foreach ($Match in $Result.Matches) {
$Value = $Match.Captures[0].Groups[1]
}
```
Super effective!
Thanks! I noticed the value returned is trimmed with ellipsis. Do you know how to avoid that? I've tried a method to extract it, but it doesn't seem to be working right.