Tail and parse log file

[sekou2331]

Hi,

I am trying to parse while tailing a log file and output it to another file. I tried both of the codes below. For the first script it seems to be not working. it looks like it is stopping the log file. As for the second it is not checking continuously. Is there a better way of doing this or am I just not writing this correctly.

Code: Select all

$tail_log = Get-Content 'C:\TestLogging.log' -wait
while($tail_log){
sls -Path $tail_log -Pattern 'Added sample 08', 'Added sample 11', 'Added sample 10', 'Added sample 20' | Out-File .\Outlogfile.log -Append
}

Code: Select all

[System.IO.FileStream]$fileStream = [System.IO.File]::Open('C:\TestLoggging.log', [System.IO.FileMode]::Open, [System.IO.FileAccess]::Read, [System.IO.FileShare]::ReadWrite)
$byteArray = New-Object byte[] $fileStream.Length
$encoding = New-Object System.Text.UTF8Encoding $true
while ($fileStream.Read($byteArray, 0, $byteArray.Length)) {
	$encoding.GetString($byteArray) | Out-File  .\Outlogfile.log
	(sls -path ".\Outlogfile.txt" -Pattern '23', '100', '10', '20').line
}
$fileStream.Dispose()

[jvierra]

You are not tailing at all. Here is how to tail a file:

Code: Select all

Get-Content C:\TestLogging.log -wait -Tail 1 |
    Select-String -Pattern 'Added sample 08|Added sample 11|Added sample 10|Added sample 20' | 
    Out-File .\Outlogfile.log