Replacing a string in file containing special characters

Question

I am completely new to PowerShell, so please bear with me. I am having issues trying to replace some a string inside the Preference file, but the file contains a bunch of special characters. How would I be able to replace this ' [{"id":"*" ' with this ' [{"id":"Save as PDF" '. Also, the * in the first argument is regex.

Here is the code:

$filepath='C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\Profile 8\'

cd $filepath

(Get-Content Preferences) -replace '[{\"id\":\"*"', '[{\"id\":\"Save as PDF\"' | Out-File -encoding ASCII Preferences

Answer 1

Simple example using convertfrom-json:

cat file.json
{
    "id":  "Save as PDF"
}

$a = get-content file.json | convertfrom-json

$a

id
--
Save as JPG


$a.id = 'Save as PDF'
$a | convertto-json
{
    "id":  "Save as PDF"
}

$a | convertto-json | set-content file.json
cat file.json
{
    "id":  "Save as PDF"
}