Find ONLY HTML Files & Replace Markup Within Them, in PowerShell

Question

I need to write up a script in PowerShell that will search through a folder, find ONLY HTML files, and replace a certain line of markup that I specify with new markup.

Here is what I have so far:

$filePath = 'C:\Users\bettiom\Desktop\schools\alex\Academics'
$processFiles = Get-ChildItem -Exclude *.bak -Filter *.htm -Recurse -Path $filePath

$query = '<html>'
$replace = '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">'

foreach ( $file in  $processFiles ) {
     $file | Copy-Item -Destination "$file.bak"

    $arrayData = Get-Content $file
    for ($i=0; $i -lt $arrayData.Count; $i++) {
         if ( $arrayData[$i] -match $query ) {
              $arrayData[$i+1] = $arrayData[$i+1].Replace($query,$replace)
         } else { }
    }
    $arrayData | Out-File $file -Force
}

Everything seems to work up until the foreach loop, it then just doesn't execute pass that line.

Any help given will be much appreciated.

Thanks in Advance.

Ansgar Wiechers · Accepted Answer · 2014-02-11 20:53:19Z

1

You're using pipelines where you shouldn't, and avoid them where they'd actually be beneficial. Try this instead:

$filePath = 'C:\Users\bettiom\Desktop\schools\alex\Academics'

$srch = '<html>'
$repl = '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">'

Get-ChildItem -Exclude *.bak -Filter *.htm -Recurse -Path $filePath | % {
  $file = $_.FullName
  Copy-Item $file "$file.bak"
  (Get-Content $file) -replace $srch, $repl | Out-File $file -Force
}

answered Feb 11, 2014 at 20:53

Ansgar Wiechers

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