1

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

Improve this question
3
  • please add a sample of one of the data files you want changed and how the result should look. please add it to your Question & wrap it in code formatting so that folks can find & read it easily. Commented Dec 25, 2021 at 10:03
  • 1
    -Replace './$val_files/style.css' --> -Replace "./$val_files/style.css". Single-quoted strings are not interpolated. Commented Dec 25, 2021 at 11:50
  • BTW, -Recurse is superfluous because it only works when -Path argument points to a folder. You could even replace Get-ChildItem by Get-Item. Commented Dec 25, 2021 at 11:52

1 Answer 1

Reset to default
5

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
}
Improve this answer
Sign up to request clarification or add additional context in comments.

4 Comments

thanks you this work well, but can you explain to me about use of 1. (\d+) 2. [regex]::Escape and {0} and $matches[1] i am new in powershell
and how to convert string (3.html) to integer (3) then sub(-) 1 from it i try this $string = "3.html" $integer = [int]$string-1 but not work
@rarksoca (\d+) means to (regex) capture 1 or more digits in a $matches object. [regex]::Escape() is a method to escape characters that have special meaning in regular expressions like the dot by placing a backslash in front of that character. {0} is a placeholder that wil be filled in through the -f Format operator.
@rarksoca You cannot do arithmatic on a string like 3.html. You CAN do that on the 3 by casting it to [int]. That is what the $matches[1] value stores in this case (remember the (\d+) regex)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.