How to replace text in multiple file in many folder using powershell-CodePudding

I have many folder ex: folder1,folder2,folder3... about folder100

In those folder have many files ex: 1.html,2.html,3.html,4.html...about 20.html

I want to replace some text in those all html file in all folder but not all text i want to replace is same. ex:(for 1.html, i want to replace ./1_files/style.css to style.css) and (for 2.html, i want to replace ./2_files/style.css to style.css)....

So i try something like this and it work well

Get-ChildItem "*\1.html" -Recurse | ForEach-Object -Process {
    (Get-Content $_) -Replace './1_files/style.css', 'style.css' | Set-Content $_
}
Get-ChildItem "*\2.html" -Recurse | ForEach-Object -Process {
    (Get-Content $_) -Replace './2_files/style.css', 'style.css' | Set-Content $_
}
Get-ChildItem "*\3.html" -Recurse | ForEach-Object -Process {
    (Get-Content $_) -Replace './3_files/style.css', 'style.css' | Set-Content $_
}
Get-ChildItem "*\4.html" -Recurse | ForEach-Object -Process {
    (Get-Content $_) -Replace './4_files/style.css', 'style.css' | Set-Content $_
}

but i have to write many of those code "\4.html" "\5.html" "*\6.html" ...

i try this but it do not work

Do { 
    $val   
    Write-Host $val

    $Fn = "$val.html"

    Get-ChildItem "*\$Fn" -Recurse | ForEach-Object -Process {
        (Get-Content $_) -Replace './$val_files/style.css', 'style.css' | 
            Set-Content $_
    }
} while($val -ne 100)

Please show me correct way to do..loop replace thanks you

CodePudding user response：

Assuming all your subfolders can be found inside one source folder path, you can do below to do the replacement in all those files:

# the path where all subfolders and html files can be found
$sourcePath = 'X:\Wherever\Your\Subfolders\Are\That\Contain\The\Html\Files'
Get-ChildItem -Path $sourcePath -Filter '*.html' -Recurse -File |
# filter on html files that have a numeric basename
Where-Object {$_.BaseName -match '(\d )'} | ForEach-Object {
    # construct the string to repace and escape the regex special characters
    $replace = [regex]::Escape(('./{0}_files/style.css' -f $matches[1]))
    # get the content as one single multiline string so -replace works faster
    (Get-Content -Path $_.FullName -Raw) -replace $replace, 'style.css' |
    Set-Content -Path $_.FullName
}