ghw

# Define the parameters

$SearchPath = "." # '.' means the current directory. Change to a path like 'C:\MyFiles\' if needed.

$FileFilter = "*abcd*" # Files containing 'abcd' anywhere in the name

$OldText = 'set ab="fghfg"' # The exact string to be replaced

$NewText = " " # The replacement string (a single space)

$ModifiedCount = 0

Write-Host "Starting file search in $SearchPath for files containing '$FileFilter'..."

# 1. Use Get-ChildItem to find all files matching the name pattern

Get-ChildItem -Path $SearchPath -Filter $FileFilter -File | ForEach-Object {

    

    $FilePath = $_.FullName

    Write-Host "`n-- Processing File: $($_.Name) --"

    

    try {

        # 2. Read the entire content of the file into a single string (using -Raw)

        $Content = Get-Content -Path $FilePath -Raw

        # Check if the content contains the target string

        if ($Content -like "*$OldText*") {

            Write-Host "Found '$OldText' inside. Performing replacement..."

            

            # 3. Use the .Replace() method for a case-sensitive, literal string replacement

            # The -replace operator could also be used, but .Replace() is often cleaner for literal strings without regex.

            $NewContent = $Content.Replace($OldText, $NewText)

            

            # 4. Write the modified content back to the original file

            # This overwrites the file.

            $NewContent | Set-Content -Path $FilePath -Force

            

            $ModifiedCount++

            Write-Host "Replacement successful. File updated." -ForegroundColor Green

        }

        else {

            Write-Host "Target text not found. Skipping file."

        }

    }

    catch {

        Write-Host "An error occurred processing file '$($_.Name)': $($_.Exception.Message)" -ForegroundColor Red

    }

}

Write-Host "`n--- Operation Complete ---"

Write-Host "Total files modified: $ModifiedCount" -ForegroundColor Yellow