使用powershell在csv中删除空格和列

Question

I'm trying to convert a downloaded ".txt" file into a goodlooking and useful ".csv" file using powershell. I'm kindly advanced with this task but shortly before the goal I have some problems which I can not manage.

It is a list with the OUI-Part of mac-addresses and its names. This is how it looks like (without quotation):

" 00-00-00   "  EMPTY COLUMN    "XEROX CORPORATION"
" 00-00-01   "  EMPTY COLUMN    "XEROX CORPORATION"

My first question now is, how can I get the spaces in the column of the OUI-address away. The secound one, how can I delete the empty column.

In the end it should look like this (without quotation):

"00-00-00" "XEROX CORPORATION"
"00-00-01" "XEROX CORPORATION"

So that we have in the first column the OUI without any spaces and in the second column the name of the company. But here it is important to have spaces in the name.

Original file content:

  00-00-09          XEROX CORPORATION
  00-00-0A          OMRON TATEISI ELECTRONICS CO.
  00-00-0B          MATRIX CORPORATION
  00-00-0C          CISCO SYSTEMS, INC.

I hope you can help me.

Answer 1

Here is one way, using Get-Content and Select-String with a regular expression to extract the substrings:

get-content "test.txt" | foreach-object {
  $_ | select-string '\s*((?:[0-9a-f]{2}-){2}[0-9a-f]{2})\s+(.+)$' | foreach-object {
    $oui = $_.Matches[0].Groups[1].Value
    $description = $_.Matches[0].Groups[2].Value
  }
  new-object PSObject -property @{
    "OUI" = $oui
    "Description" = $description
  } | select-object OUI,Description
}

For output that contains pairs of quoted strings, replace New-Object with a formatted string; for example:

get-content "test.txt" | foreach-object {
  $_ | select-string '\s*((?:[0-9a-f]{2}-){2}[0-9a-f]{2})\s+(.+)$' | foreach-object {
    $oui = $_.Matches[0].Groups[1].Value
    $description = $_.Matches[0].Groups[2].Value
  }
  '"{0}" "{1}"' -f $oui,$description
}

You can use a regular expression tester such as https://www.regex101.com/ to see how the regular expression (ie, the parameter to Select-String ) extracts the substrings.