Get Column values from text file - powershell

Question

Below is the text file data I have
Disk ### Status Size Free Dyn Gpt
-------- ------------- ------- ------- --- ---
Disk 0 Online 100 GB 1024 KB
Disk 1 Online 6144 MB 1024 KB
Disk 2 Online 200 GB 1024 KB
Disk 3 Online 10 GB 1024 KB
I want to put this data in csv like below, removing the last 2 columns and adding the server value
server Disk ### Status Size Free
------ -------- ------------- ------- -------
s1 Disk 0 Online 100 GB 1024 KB
s1 Disk 1 Online 6144 MB 1024 KB
s1 Disk 2 Online 200 GB 1024 KB
s1 Disk 3 Online 10 GB 1024 KB
below is the code
$list = Get-Content -Path "C:\server.txt"
foreach($server in $list)
{
$diskpart = cmd /c 'echo list disk | diskpart'
}
$Lines = $diskpart
$Out = $False
$Line=#()
ForEach ($Line In $Lines)
{
If ($Line -match 'DISKPART>')
{
$Out = $False
}
If ($Out -eq $True)
{
$Line | Out-File "C:\d.txt" -Append
}
If ($Line -match 'DISKPART>')
{
$Out = $True
}
}
$data = Import-Csv -Path C:\d.txt
I tried reading line using foreach,but getting output with headers and ---
Disk ### Status Size Free Dyn Gpt
---------------------------------------------------
Disk 0 Online 100 GB 1024 KB
Please let me know how can I extract columns from text file and append the servername to it. Need some idea to do this

Answer 1

One way of converting this into a CSV file is like below.
Assuming you have the output from diskpart in a string array $lines and the current server is called 's1' :
$result = switch -Regex ($lines) {
'^\s*Disk \d' {
$disk,$status,$size,$free = $_.Trim() -split '\s{2,}'
[PsCustomObject]#{
'Server' = $server # 's1' in this example
'Disk ###' = $disk
'Status' = $status
'Size' = $size
'Free' = $free
}
}
}
# output on console screen
$result | Format-Table -AutoSize
# output to CSV file
$result | Export-Csv -Path 'C:\diskinfo.csv' -NoTypeInformation
Result on screen:
Server Disk ### Status Size Free
------ -------- ------ ---- ----
s1 Disk 0 Online 100 GB 1024 KB
s1 Disk 1 Online 6144 MB 1024 KB
s1 Disk 2 Online 200 GB 1024 KB
s1 Disk 3 Online 10 GB 1024 KB
P.S. It is strongly not recommended to use Out-File to build a CSV file. Use that only if other options are not available. To create CSV use Export-Csv
If you need to do this on a series of computers, you might use this:
$list = Get-Content -Path "C:\server.txt"
# parameter -ComputerName can handle an array of computer names at once
$lines = Invoke-Command -ComputerName $list -ScriptBlock { "list disk" | diskpart }
$result = switch -Regex ($lines) {
'^On computer: (\w+)' { $server = $Matches[1].Trim() }
'^\s*Disk \d' {
$disk,$status,$size,$free = $_.Trim() -split '\s{2,}'
[PsCustomObject]#{
'Server' = $server
'Disk ###' = $disk
'Status' = $status
'Size' = $size
'Free' = $free
}
}
}
# output on console screen
$result | Format-Table -AutoSize
# output to CSV file
$result | Export-Csv -Path 'C:\diskinfo.csv' -NoTypeInformation