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Comment by hgsgm | Hacker News Reader

I hope not, because $empty is necessary when you actually want to elide a missing value, like Python's `filter`

What a horrible language:x

It's horrible but it's home for a lot of us.

more like holm for you.

The parent I think is getting two things mixed up.

    [[ $var == "" ]]

works as you describe and as expected. What the parent is talking about is when you have an invocation like

    my_program $opt
    my_program "$opt"

Which when empty will evaluate to

    my_program
    my_program ""

respectively.