What is the scope of environment variables in PowerShell?

What is the scope of environment variables in PowerShell?

In PowerShell, environment variables can have different scopes: global, script, and local. Global variables are accessible from anywhere, script variables are limited to the script, and local variables are confined to the current session.

Can you give me an example of each type of scope?

Sure! For a global variable, you can use $env:MYVAR = 'value'. For a script variable, you might define it within a script block like $myVar = 'script value'. A local variable is simply defined as $localVar = 'local value' within a function.

How do I check the value of an environment variable?

You can check the value of an environment variable by using Get-ChildItem Env: or simply by accessing it directly with $env:MYVAR.

What happens if I change an environment variable?

If you change an environment variable, the new value will be available in the current session and any child processes, but it won't affect the global environment permanently unless you set it in the system settings.