[wellylug] Default value in read

[michael at diaspora.gen.nz]

> (In which I want the user to be able to be able to EDIT the default 
> value, as most times the default is correct, or needing a minor change, 
> e.g. ".com" might change to "co.nz" )

bash doesn't provide this (as other people have noted); nor does ksh, from
a quick check.  zsh might, but then, most people don't have zsh installed.

dialog(1) on a Debian system could probably be used, as could (if you
can assume graphicality & Gnome) zenity; but those all have portability
drawbacks.

Ruby & PHP may have utilities that would be usable; IO::Prompt, the
Perl module for this sort of thing, doesn't appear to support editable
defaults.

    -- michael.