Skip to main content

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

1
  • you mean to use these variables as globals that can be changed by any sub shell, and have that change be recognized by all sub shells including the main shell so all shells will read the value updated by that child shell and be able to work on the updated value? Commented Sep 17, 2013 at 23:24