PowerShell command to add the environment variable

Question

I want to add below 2 environment variables using PowerShell command. I have done it manually but now and down the line I want to add environment variables in VM using PowerShell commands, Please suggest

Answer 1

Hi @Varma ,

system variabeles can be set in PowerShell like this (admin permission is required to modify/add system variables !):

[Environment]::SetEnvironmentVariable("MYNewVariable", "MyTestValue", "Machine")

An existing variable can be read via PowerShell like this:

[Environment]::SetEnvironmentVariable("MYNewVariable", "MyTestValue", "Machine")
[Environment]::GetEnvironmentVariable("Path","Machine")

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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards

Andreas Baumgarten

Answer 2

Hi @ Varma,

this looks fine for me:

[Environment]::SetEnvironmentVariable("JAVA_HOME", "C:\Program files\Java\jdk-21", "Machine")

To add %JAVA_HOME% to your PATH variable you need to read the current value of the PATH variable and add the %JAVA_HOME% value. Something like this (NOT TESTED):

$addValue = "%JAVA_HOME%"
$oldvalues = [Environment]::GetEnvironmentVariable("PATH","Machine")
$newValue = $oldValues + " `r`n "+ $addValue
[Environment]::SetEnvironmentVariable("PATH", "$newValue", "Machine")
"Machine")

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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Regards

Andreas Baumgarten