使用 PowerShell 提取文件名的一部分

Question

I get about 200 files everyday that need to be processed. I need to extract the part of the file name. For Example, I receive the files with the following naming convention:

X12345678 - NAME - DocumentType.pdf

I need a PowerShell script to extract the 'X12345678' part of the file name to process it further.

Can you please help me with this.

Answer 1

You can use a simple RegEx. Given a filename as per your example, here is the general idea:

# Check the filename
if("X12345678 - NAME - DocumentType.pdf" -match "^(?<code>\w\d+) -.*$")
{
    # Get the code
    $fileCode = $matches.code

    # Do something with the code
    "Filename is valid: $fileCode"
}
else
{
    "Filename is not in required format"
}