Need to convert txt file to CSV (with headers) using PowerShell - powershell

Question

Can we convert below txt file to CSV format added at the end?
Text file:
IP Address: 192.168.1.1
Hostname: 01-any1TEST
Event Message: Ping
Alert Status: Down at least 3 min
Event Time: 17:25:14
Alert Type: :Windows 2012 Server
-------------------------------------------------------------------------------------
IP Address: 192.168.1.2
Hostname: 02-any2TEST
Event Message: Ping
Alert Status: Down at least 4 min
Event Time: 17:25:40
Alert Type: :Unix Server
-------------------------------------------------------------------------------------
IP Address: 192.168.1.3
Hostname: 03-any3TEST
Event Message: Ping
Alert Status: Down at least 3 min
Event Time: 17:26:21
Alert Type: :windows host
-------------------------------------------------------------------------------------
CSV file output required as below:
'IP Address','Hostname','Event Message','Alert Status','Event Time','Alert Type'
'192.168.1.1','01-any1TEST','Ping','Down at least 3 min','17:26:21','Windows 2012 Server '
'192.168.1.2','02-any2TEST','Ping','Down at least 3 min','17:26:21','unix host '
'192.168.1.3','03-any3TEST','Ping','Down at least 3 min','17:26:21','windows host '

Answer 1

Here's one way you could do it:
$logFile = "logfile.txt"
$delimeterPattern = '^####'
$recordPattern = '^([^:]+): (.+)'
# how many lines in a record?
$recordLines = Select-String $delimeterPattern $logFile -List |
Select-Object -ExpandProperty LineNumber
$logContent = Get-Content $logFile
for ( $i = 0; $i -lt $logContent.Count; $i += $recordLines ) {
$output = New-Object PSObject
for ( $j = $i; $j -lt $i + $recordLines; $j++ ) {
$logContent[$j] | Select-String $recordPattern | ForEach-Object {
$output | Add-Member NoteProperty $_.Matches[0].Groups[1].Value $_.Matches[0].Groups[2].Value
}
}
$output
}
To write to a CSV file, put the above in a script and pipe to Export-Csv.

Answer 2

I hope this will solve your problem:
Function Convert2CSV()
{
param($logFile, $csvFile)
"'IP Address','Hostname','Event Message','Alert Status','Event Time','Alert Type'" | Out-File $csvFile
get-content $logFile -Delimiter "-------------------------------------------------------------------------------------" | &{ process{
$IsValidMatch=$_ -match "IP Address: (.*)\r\nHostname: (.*)\r\nEvent Message: (.*)\r\nAlert Status: (.*)\r\nEvent Time: (.*)\r\nAlert Type: (.*)\r\n"
if($IsValidMatch)
{
$nextLine="'$($matches[1])','$($matches[2])','$($matches[3])','$($matches[4])','$($matches[5])','$($matches[6])'" | Out-File $csvFile -Append
}
}}
}
Finally call the Convert2CSV function, and define your log file and output file as parameter:
Convert2CSV -logFile .\1.txt -csvFile 3.txt

Answer 3

$delimeterPattern = '^--'
$recordPattern = '^([^:]+): (.+)'
$logContent = Get-Content "logfile.txt"
# how many lines in a record?
$recordLines = ($logContent | Select-String $delimeterPattern |
Select-Object -First 1).LineNumber
for ( $i = 0; $i -lt $logContent.Count; $i += $recordLines ) {
$output = New-Object PSObject
for ( $j = $i; $j -lt $i + $recordLines; $j++ ) {
$logContent[$j] | Select-String $recordPattern | ForEach-Object {
$output | Add-Member NoteProperty $_.Matches[0].Groups[1].Value
$_.Matches[0].Groups[2].Value
}
}
$output
}
Updated seprator $delimeterPattern = '^--' to $delimeterPattern = '^####' .