Powershell "select-string" Read Info

Question

EngConI need help getting info out of the Select-String command. I need to find which items from $array are inside the engcon.pbo file. It would be most useful if the found results were displayed on the console or even better, in a .txt file.

In the full code, there are 297 items in the array (#0 and #295 included).

######
#Mine#
######


$TargetFile   = "C:\PowershellScripts\EngCon.pbo"

$array = @("Comprehension", "Outspeed", "Marsileaceae", "Chalybeate")

$i = 0

while ($i -le 295)
{

$SearchString = $array[$i]

Select-String $TargetFile -pattern $SearchString

$i = $i + 1

}

#######
#Yours#
#######

$array = @($array = @("Comprehension", "Outspeed", "Marsileaceae", "Chalybeate")
$found = @{}
Get-Content "C:\PowershellScripts\EngCon.txt" | % {
  $line = $_
  foreach ($item in $array) {
    if ($line -match $item) { $found[$item] = $true }
  }
}

$found.Keys | Out-File "C:\PowershellScripts\results.txt"

If possible could you also provide some good places to learn PS.

After quick testing with "write-host" the results show something in the foreach ($item in $array) is causing the error(ends script instantly), also the sample file I use is just a tester of some array items and some random words, all separated by spaces. As for the code, all I edited was the set of items in $array

FYI, I cannot reveal most of the array items as they are private

"Comprehension random Outspeed hello yours Uncovenable Marsileaceae extreme Runcation Guggle Tribunitious Chalybeate" Is The Full Tester File For All Versions(EngCon.pbo, EngCon.txt And EngCon)

Obfuscate the array elements then, but show your actual code. Don't tell what you think you did. — Ansgar Wiechers
– Ansgar Wiechers, Commented Jul 1, 2013 at 9:37
Why would you put the array definition inside another array definition? I certainly didn't tell you to do that. Change $array = @($array = @("Comprehension", "Outspeed", "Marsileaceae", "Chalybeate") to $array = @("Comprehension", "Outspeed", "Marsileaceae", "Chalybeate") and try again. — Ansgar Wiechers
– Ansgar Wiechers, Commented Jul 1, 2013 at 10:53
Thank You VERY Much, works now and worked its purpose for the first time already — Docter Dum
– Docter Dum, Commented Jul 2, 2013 at 7:59

Ansgar Wiechers · Accepted Answer · 2013-06-30 11:39:42Z

2

Your Select-String instruction is repeatedly reading $TargetFile. This will adversely affect performance. Try something like this instead:

$array = @(...)

$found = @{}
Get-Content "C:\PowershellScripts\EngCon.pbo" | % {
  $line = $_
  foreach ($item in $array) {
    if ($line -match $item) { $found[$item] = $true }
  }
}

$found.Keys | Out-File "C:\results.txt"

answered Jun 30, 2013 at 11:39

Ansgar Wiechers

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4 Comments

Docter Dum Over a year ago

this returns an empty file, what editing needs to be done other then the array

Ansgar Wiechers Over a year ago

Not really. The code works fine for me. Is EngCon.pbo actually a text file?

Docter Dum Over a year ago

I tried a normal .txt file and a plain file(no .***) and it still comes as an empty file

Ansgar Wiechers Over a year ago

Please show your code and sample content of the input file. Don't post it as a comment, update your question with it.

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