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Re: [Help-bash] Why `echo !(*.l).c` behaves different depending on the c

From: Eduardo Bustamante
Subject: Re: [Help-bash] Why `echo !(*.l).c` behaves different depending on the context?
Date: Fri, 8 Feb 2019 20:19:22 -0800 
On Fri, Feb 8, 2019 at 8:04 PM Peng Yu <address@hidden> wrote:
(...)
> See below. `echo !(*.l).c` sometimes is OK but sometimes it is an
> error. Is it a correct behavior?

Yes. "extglob" changes the behavior of the parser. This behavior is
correct and expected. Read: https://mywiki.wooledge.org/glob#extglob
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