Read txt file in folder and fint some text by per sample - powershell

Question

I try to read big data log file, in folder C: \ log \ 1 \ i put 2 txt files, i need open-> read all file .txt and find with filter some text like whis: [text]
# Filename: script.ps1
$Files = Get-ChildItem "C:\log\1\" -Filter "*.txt"
foreach ($File in $Files)
{
$StringMatch = $null
$StringMatch = select-string $File -pattern "[Error]"
if ($StringMatch) {out-file -filepath C:\log\outputlog.txt -inputobject $StringMatch}
}
# end of script
not work

Answer 1

Would doing something like a select-string work?
Select-String C:\Scripts\*.txt -pattern "SEARCH STRING HERE" | Format-List
Or if there are multiple files you are wanting to parse maybe use the same select-string but within a loop and output the results.
$Files = Get-ChildItem "C:\log\1\" -Filter "*.txt"
foreach ($File in $Files)
{
$StringMatch = $null
$StringMatch = select-string $File -pattern "SEARCH STRING HERE"
if ($StringMatch) {out-file -filepath c:\outputlog.txt -inputobject $StringMatch}
}

Answer 2

This will print out the file name along with the line number in the file. I hope this is what you are looking for.
Remove-Item -Path C:\log\outlog.txt
$Files = Get-ChildItem "C:\log\1\" -Filter "*.txt"
foreach ($File in $Files)
{
$lineNumber = 0
$content = Get-Content -Path "C:\log\1\$File"
foreach($line in $content)
{
if($line.Contains('[Error]'))
{
Add-Content -Path C:\log\outlog.txt -Value "$File -> $lineNumber"
}
$lineNumber++
}
}

Answer 3

Code below works
It selects strings in txt files in your folder based on -SimpleMatch and then appends it to new.txt file.
Though i do not know how to put two simple matches in one line. Maybe someone does and can post it here
Select-String -Path C:\log\1\*.txt -SimpleMatch "[Error]" -ca | select -exp line | out-file C:\log\1\new.txt -Append
Select-String -Path C:\log\1\*.txt -SimpleMatch "[File]" -ca | select -exp line | out-file C:\log\1\new.txt -Append
Regards
-----edit-----
If you want to you may not append it anywhere just display - simply dont pipe it to out-file

Answer 4

use index then check it :
New-Item C:\log\outputlog.txt
$Files = Get-ChildItem "C:\log\1\" -Include "*.txt"
foreach ($File in $Files)
{
$StringMatch = $null
$StringMatch = Get-Content $File
if($StringMatch.IndexOf("[Error]") -ne -1)
{
Add-Content -Path C:\log\outputlog.txt -Value ($StringMatch+"
-------------------------------------------------------------
")
}
}
# end of script