Re: parameter expansion with `:` does not work

[Dennis Williamson]

On Wed, Jul 7, 2021, 4:50 PM <lisa-asket@perso.be> wrote:

>
> Have noticed that parameter expansion with `:` does not work
>
>
>
> : ${fltype:-"texi,org"}  # alternative to `fltype=`
>
>


$ unset foo
$ : ${foo:-bar}
$ echo "$foo"

$ : ${foo:=bar}
$ echo "$foo"
bar

The first form is a substitution and the second form is an assignment.