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Failglob issues

From: Nikolai Kondrashov
Subject: Failglob issues
Date: Sun, 01 Sep 2013 12:45:23 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.12) Gecko/20130116 Icedove/10.0.12

Hi everyone,

I'm trying to use "failglob" option in several projects of mine and noticed
the following strange behavior.

1) With both nullglob and failglob enabled it is considered an error for a
   glob not to match anything. I'd say it's more natural to not produce an
   error in this case. Otherwise a fairly useful behavior is broken, like
   glob use in "for" loop:

    shopt -s nullglob failglob
    for file in *.rpm; do
        # Do something with the file

   Am I missing some other, more important consideration here? If there is
   none, could this be considered a bug and fixed?

2) Unquoted globs in associative array initializers with failglob enabled
   produce an error, although the documentation doesn't mention any use of
   globs there and with failglob disabled globs don't seem to expand to
   anything. I.e. this fails:

    shopt -s failglob
    declare -A A=([a]=*)

   Are globs supposed to have an effect in associative array initializers? If
   yes, what effect, and should this be documented? If not, is it possible
   that this is a bug and the above shouldn't fail?

Thank you.


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