Environment Variable - Getting and Setting Environment Variables

Getting and Setting Environment Variables

The variables can be used both in scripts and on the command line. They are usually referenced by putting special symbols in front of or around the variable name. For instance, to display the user home directory, in most scripting environments, the user has to type:

echo $HOME

On DOS, OS/2 or Windows systems, the user has to type this:

echo %HOME%

In Windows PowerShell, the user has to type this:

Write-Output $HOME

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