update aspx or any file through Powershell

I had this problem of SharePoint people picker issue, where in the People picker restricted to particular SharePoint group was having UI problem .Problem was that when you try to search users a popup open with the users in that SharePoint group for you to be selected .

Problem is that the Height of the people picker popup in IE10 was very small as below.
It was working fine in IE9,IE11 and IE10 quirks mode

The files in use are picker.aspx and pickerdialog.aspx .

There were two solutions

Solution-1 : Edit the picker.aspx

·         Locate the div with ID = ‘resultcontent ‘and add style property to it. Set the min-height value from inside the style property like below.

<div id='resultcontent' style="min-height:300px" class="ms-pickerresultdiv">

 

 

Solution-2 : Edit the Pickerdialog.master 

·         In the Meta tags section, set the “X-UA-Compatible” to “IE=EmulateIE9” to make it look like below.

 

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9" />

Here in this option the page is rendered in IE9 mode  

Client chose the solution-2 and they wanted to automate this using the PowerShell ,hence I wrote the below PowerShell command to take backup of the current pickerdialog.aspx and update the tag in the file which is present in 15 hive, this ps1 has to run in all web front-end server

Below is the PowerShell command

 

 

 

 

Write-host -ForegroundColor Green "Updating Pickerdialog.master file started .........!!"
Write-host -ForegroundColor Green "Creating backup of current file ........."

$a =(Get-Date).ToString('MM-dd-yyyy hh-mm-ss')
$filename = "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\TEMPLATE\LAYOUTS\pickerdialog-{0}.master" -f $a

copy "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\TEMPLATE\LAYOUTS\pickerdialog.master" $filename
Write-host -ForegroundColor Green "Backup of current file completed ........."

(Get-Content "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\TEMPLATE\LAYOUTS\pickerdialog.master") |
Foreach-Object {$_ -replace "<meta http-equiv=`"X-UA-Compatible`" content=`"IE=10`"/>", "<meta http-equiv=`"X-UA-Compatible`" content=`"IE=EmulateIE9`"/>"} |
Set-Content "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\TEMPLATE\LAYOUTS\pickerdialog.master"

Write-host -ForegroundColor Green "Updating Pickerdialog.master file completed ........."
pause