How to Replace Multiple Strings in a File using PowerShell

Replace the Data Source and Initial Catalog values of WebConfig.XML

Content of XML file

<Configuration ConfiguredType=”Property” Path=”\Package.Connections[ConnStaging].Properties[ConnectionString]” ValueType=”String”>
<ConfiguredValue>Data Source=localhost;Initial Catalog=Stage;Integrated Security=SSPI; Connection Timeout = 10</ConfiguredValue>


[string]$db = 'Catalog='+ $DatabaseName
[string]$dbs = 'Source='+ $DatabaseServer
(Get-Content $XML) | 
Foreach-Object {
$_ -replace "Catalog=([A-Za-z0-9_]+)", $db -replace "Source=([A-Za-z0-9_]+)", $dbs } | Set-Content $XML


The above code can be used to modify the content of any files or even copy the modified content to new file

$Sourcefile = 'c:\filename.txt'
$desfile =  'c:\Newfilename.txt'
(Get-Content $Sourcefile) | Foreach-Object {
    $_ -replace 'Prashanth', 'Jayaram' `
       -replace 'SQL', 'PowerShell' 
    } | Set-Content $destFile



About Prashanth Jayaram

DB Technologist, Author, Blogger, Service Delivery Manager at CTS, Automation Expert, Technet WIKI Ninja, MVB and Powershell Geek My Profile: jayaram/ Connect Me: Twitter @prashantjayaram GMAIL The articles are published in:
This entry was posted in PowerShell, String handling and tagged , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s