Snippet Name: Remove_SQL_prefix_PowerShell

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Created Date: 2025-06-16 13:12:43
Last Modified Date: 2025-05-31 10:32:03

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Sample Output:

Title: Remove SQL prefix PowerShell
Author: user
In PowerShell, i have a folder full of files in windows coming from Get-Content. . some, but not all, of the files start with "SQL_000_*, like "SQL_015_sp_help_vlfs" for example, where the number may be two or three digits. i need to remove the prefix dynamically, to get the name. can you help i need to extract the remaining file name from it.

Author: ChatGPT
To extract the remaining file name and remove the prefix dynamically, you can use PowerShell with a regular expression to handle filenames with the `SQL_000_*` pattern. Here???s an example script that achieves this:

```powershell
# Get all files in the folder
$files = Get-ChildItem -Path "C:\Path\To\Your\Folder" -File

foreach ($file in $files) {
    # Check if the filename starts with the pattern "SQL_" followed by two or three digits and an underscore
    if ($file.Name -match '^SQL_\d{2,3}_') {
        # Remove the prefix using the -replace operator
        $newName = $file.Name -replace '^SQL_\d{2,3}_', ''
        Write-Output $newName
    }
}
```

### Explanation:
- `Get-ChildItem` retrieves all files in the specified folder.
- The `-match` operator checks if the filename matches the pattern `^SQL_\d{2,3}_`, where:
  - `^` asserts the match at the start of the string.
  - `SQL_` is the literal prefix.
  - `\d{2,3}` matches two or three digits.
  - `_` matches the underscore following the digits.
- The `-replace` operator removes the matched prefix, leaving only the remaining part of the filename.

You can modify `C:\Path\To\Your\Folder` to the appropriate path for your use case.