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Use variables in string replace - Windows powershell


Use variables in string replace - Windows powershell

By : user2185333
Date : November 21 2020, 04:01 AM
Any of those help I have a requirement where my string is of format as below: , Use curly braces to "escape" group number
code :
$content -Replace '(BuildNumber\s*=\s*")\d*("\s*)', "`${1}$num`$2" | Out-File $(Build.SourcesDirectory)\Install\Common\Constants.wxi


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PowerShell: Quoting -replace & variables

PowerShell: Quoting -replace & variables


By : Paulo
Date : March 29 2020, 07:55 AM
Any of those help When you use single quotes you tell PowerShell to use a string literal meaning everything between the opening and closing quote is to be interpreted literally.
When you use double quotes, PowerShell will interpret specific characters inside the double quotes.
Powershell - using variables in replace

Powershell - using variables in replace


By : Feng Yu
Date : March 29 2020, 07:55 AM
around this issue Unlike the Replace method which takes strings, the replace operator takes a regular expression pattern. $SourcePath needs to be escaped as it contains backslashes which are special regex characters.
code :
$sourceFileRelativePath  = $sourceFullPath -replace [regex]::escape($SourcePath)
$destFullFilePath = Join-Path $folder $sourceFileRelativePath
replace strings with variables using powershell

replace strings with variables using powershell


By : MiqFerreira
Date : March 29 2020, 07:55 AM
should help you out I am struggling with the code below and this is what I get: , Not sure I fully understand, but here is a try:
code :
$str = '"FirstName":"f_name","LastName":"l_name","AskCatalog":false,"Nuteres":12","ZipCode":"1234","City":"LA BOUVERIE","Street":"Rue Pasteur","StreetNr":"34","Phone":"12345678","Email":"mail@mail.com"'

$list = @{FirstName='${strName}';
      LastName='${strSurName}';
      ZipCode='${strZipCode}';
      City='${strCity}';
      Street='${strStreet}';
      StreetNr='${strNumber}'}

foreach($item in $list.GetEnumerator())
{
    $key = $item.Key
    $value = $item.Value
    $pattern = '("'+$key+'":)".*?"'
    $changed = "`$1`"$value`""
    $result = $str = $str -replace ($pattern, $changed)
}

Write-Host $result
"FirstName":"${strName}","LastName":"${strSurName}","AskCatalog":false,"Nuteres":12","ZipCode":"${strZipCode}","City":"${strCity}","Street":"${strStreet}","StreetNr":"${strNumber}","Phone":"12345678","Email":"mail@mail.com"
Using variables inside PowerShell replace

Using variables inside PowerShell replace


By : Mano Hari
Date : March 29 2020, 07:55 AM
may help you . Do not edit XML via string replacements. Use the gratuitous XML parser PowerShell provides you with.
Load the config file like this:
code :
[xml]$xml = Get-Content $serverXml
$xml = New-Object Xml.XmlDocument
$xml.Load($serverXml)
$node = $xml.SelectSingleNode('/Path/To/Node')
$node.Attributes['password'] = 'newpassword'
$attr = $xml.CreateAttribute('testWhileIdle')
$attr.Value = 'true'
[void]$node.Attributes.Append($attr)
$xml.Save($serverXml)
Powershell run space write protected variables ( not replace able )

Powershell run space write protected variables ( not replace able )


By : vallerea
Date : March 29 2020, 07:55 AM
I hope this helps you . You seem to be confusing write-protection of the variable with write-protection of the contents of the dictionary stored in that variable.
Use a ReadOnlyDictionary if you want no one to be able to write new entries to it:
code :
var readOnlyDict = new ReadOnlyDictionary<string, PSObject>(new Dictionary<string, PSObject>(){
    { "initKey1", initPSobject1 },
    { "initKey2", initPSobject2 },
});
SessionState.PSVariable.Set(new PSVariable(paramContainerName, readOnlyDict, ScopedItemOptions.Private | ScopedItemOptions.ReadOnly))
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