Powershell search for text in files-CodePudding

I have a problem. I'm going to search files on my computer for keywords in the files. The keyword is for example "C:\Project". I get error when running this script below. But when i'm deleting C:\ in the search string it's working. But i'm interested in to search with C:\ in the beginning. Can someone help me with correction in the script?

$path = 'D:\Cross'
$searchword = 'C:\Project'
$Filename = '*.config'

Get-ChildItem $path -Include "$Filename" -Recurse | ForEach-Object { 
  If (Get-Content $_.FullName | Select-String -Pattern $searchword ){
    $PathArray  = $_.FullName
  }
}

Write-Host "Contents of ArrayPath:"
$PathArray | ForEach-Object {$_}

CodePudding user response：

Select-String defaults to regular expressions, so if you want a simple substring search instead, use the -SimpleMatch switch:

Get-Content $_.FullName | Select-String -Pattern $searchword -SimpleMatch

or make sure you escape any regex metacharacters:

Get-Content $_.FullName | Select-String -Pattern $([regex]::Escape($searchword))

You can also simplify your code significantly by using Where-Object and piping the file objects directly to Select-String instead of manually invoking Get-Content:

$filesWithKeyword = Get-ChildItem $path -Include "$Filename" -Recurse |Where-Object { $_ |Select-String -Pattern $searchword -SimpleMatch |Select-Object -First 1 }

$filesWithKeyword now contains all the FileInfo objects for which Select-String found at least 1 occurrence of the keyword in the corresponding file on disk. Select-Object -First 1 ensure the pipeline aborts as soon as the first occurrence is found, preempting the need to read large files all the way to the end.

The whole script thus becomes:

$path = 'D:\Cross'
$searchword = 'C:\Project'
$Filename = '*.config'

$filesWithKeyword = Get-ChildItem $path -Include "$Filename" -Recurse |Where-Object { $_ |Select-String -Pattern $searchword -SimpleMatch |Select-Object -First 1 }

Write-Host "Contents of ArrayPath:"
$filesWithKeyword.FullName

CodePudding user response：

I have built futher on the script and am stuck on line 31.

Foreach-Object { $_ -replace  "$Old_searchword", "$New_searchword" }

Someone who knows the error? I can post a picture of the error. The script must first search for files after the text "c:\Project" and replace it with "c:\windows". This is just an example. There will be other things in the searchwords field.

######Parametrar######
$path = @('c:\temp')
$Old_searchword = ”c:\Project"
$New_searchword = "c:\windows"
$Filename = '*.txt'
######################


##############################################################
#          List the files with the search criterion          #
##############################################################

Get-ChildItem $path -Include "$Filename" -Recurse |
ForEach-Object { 
If (Get-Content $_.FullName | Select-String -Pattern $Old_searchword -SimpleMatch ){
$PathArray  = $_.FullName
}
}
Write-Host "Contents of ArrayPath:"
$PathArray | ForEach-Object {$_}


########################################
# Change the files with the searchword #
########################################

$configFiles = Get-ChildItem $path, $filename -rec
foreach ($file in $configFiles)
{
(Get-Content $file.PSPath) |
Foreach-Object { $_ -replace  "$Old_searchword", "$New_searchword" } |
Set-Content $file.PSPath
}

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