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.

Required fields*

1
  • 2
    Welcome to the site, and thank you for your contribution. May I recommend that you use the new recommended $( ... ) style for command substitutions instead of backquotes, and not use all-uppercase-variable names unless they are environment variables? Commented Mar 17, 2021 at 9:34