if environment variables exist remove while installation
Hi
how can remove environment variable if exist , while installation ?
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Posted by:
mattski
10 years ago
Assuming you mean this (you need to be more clearer in your question info), then:
Set oShell = CreateObject("WScript.Shell")
If oShell.ExpandEnvironmentStrings("%appdata%") = "%appdata%"
Then WScript.Echo "Does not exist"
Posted by:
egiberne
10 years ago
Hi,
I was thinking some thing like that :
vbs :
Set WshShell = WScript.CreateObject("WScript.Shell")
Set sysvarenv = WshShell.Environment("User") 'System|User
'Set environement variable
sysvarenv("NINJA") = "itninja.com"
'Get the variable value
strvartest = WshShell.ExpandEnvironmentStrings("'%ITNINJA%'")
'Check it and remove it
if strvartest <>"" then sysvarenv.Remove "NINJA"
ps1 :
Set-Location env:
#Set environement variable
New-Item ninja -Value 'itninja.com'
#Get environement variable value
$vartest = Get-Content ninja -ErrorAction Stop
#Check it and remove it
if ($vartest -ne $null) { Remove-Item env:ninja }
