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robmo's avatar
robmo
Brass Contributor
Jan 25, 2023
Solved

Remove extra set of double quotes in string

Hi, I am writing a PowerShell script that needs to remove Firefox that is less than or equal to a specific version. I have the script working up to where it reads the uninstall string from the regis...
Windows PowerShell
  • robmo's avatar
    robmo
    Jan 30, 2023
    I did some inspection of Firefox installations and it turns out that they use the same uninstall string for every version. The only difference is if helper.exe is in Program Files (x86) or Program Files:

    C:\Program Files (x86)\Mozilla Firefox\uninstall\helper.exe OR
    C:\Program Files\Mozilla Firefox\uninstall\helper.exe

    Since I have this information, I will just set some variables for these strings and then I won't have to deal with string handling when reading from the registry. This will simplify the development of this script.

    Thank you for your help!
Harm_Veenstra's avatar
Harm_Veenstra
MVP
Jan 25, 2023
This should work : $uninstall= $uninstall -replace ('""'),('"')
  • robmo's avatar
    robmo
    Brass Contributor
    Jan 25, 2023

    Harm_Veenstra,
    What would be a good way to test if this solution works? I am using the following code but it fails at the initial assignment on Line 1 and throws an error:

    $uninstall = ""C:\Program Files\Mozilla Firefox\uninstall\helper.exe""
$uninstall = $uninstall -replace('""'),('"')
$uninstall

     

    Perhaps I need to use string handling at the time the value is retrieved from the registry?

    • Harm_Veenstra's avatar
      Harm_Veenstra
      MVP
      Jan 25, 2023
      Ah, ok.. You should use $uninstall='"C:\Program Files\Mozilla Firefox\uninstall\helper.exe"' to escape the double "
      • Harm_Veenstra's avatar
        Harm_Veenstra
        MVP
        Jan 26, 2023
        And how do you retrieve the value, perhaps we can fix that so that it's OK from the start

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