CODEWITHSUNDEEP
powershell
Tehc
Tehc

Reputation: 689

Overwriting specific Line in multiple Files using PowerShell with User Input

Im trying to get my PowerShell Script to read the specific line 8 on different .ctl files in multiple folders and overwrite it using a premade text and an input made by the user in a textbox.

PowerShell Script:

$handler_button3_Click={
if ($textbox1.TextLength -eq 0)
{
    $listBox1.Items.Add("Please Register your Release Number!")
}else{
    #saving the number in releasenr
    $releasenr = $textbox1.Text

    #TODO: Loop which goes into every file on different Folders and replaces
    #line 8 in all .ctl files with following text:     "rel_nr    constant "$releasenr""

    $listBox1.Items.Clear()
    $listBox1.Items.Add("Release Number has been overwritten")
    $listBox1.Items.Add("You can now proceed your Upload")
}
}

Is there a way to use a for loop to do the overwriting process foreach file that is in a current folder?

Upvotes: 4

Views: 127

Answers (1)

Martin Brandl
Martin Brandl

Reputation: 58931

Use the Get-ChildItem cmdlet to retrieve the files, iterate over it using the ForEach-Object cmdlet, read the content of the file using Get-Content, overwrite the specific line and finally write the text back to the file using the Set-Content cmdlet:

Get-ChildItem 'yourFolder' -Filter '*.ctl' | ForEach-Object {
    $content = Get-Content $_
    $content[7] = 'rel_nr    constant "{0}"' -f $releasenr
    $content | Set-Content -Path $_.FullName
}

Upvotes: 2

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