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Groups > gnu.bash.bug > #16628

Re: histexpand in shebang-less script

From Chet Ramey <chet.ramey@case.edu>
Newsgroups gnu.bash.bug
Subject Re: histexpand in shebang-less script
Date 2020-07-27 15:22 -0400
Organization ITS, Case Western Reserve University
Message-ID <mailman.151.1595877772.2739.bug-bash@gnu.org> (permalink)
References <CAMu=Brp0zxz6R9pszEizu-3=HUpYOUOmXvs5h+9o3WcL1UGEDA@mail.gmail.com> <783121a0-8faf-79cb-ada0-ee10a9a11302@case.edu>

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On 7/24/20 7:44 PM, Grisha Levit wrote:
> The value of `histexpand' is not reset when executing a shebang-less
> script. (Admittedly, this is unlikely to matter since the value of
> `history' *is* properly reset.)
> 
> $ cat > /tmp/test1.sh <<"EOF"
> #!/usr/bin/env bash
> echo $-
> EOF
> $ cat > /tmp/test2.sh <<"EOF"
> echo $-
> EOF
> $ chmod +x /tmp/test1.sh /tmp/test2.sh
> $ set -H
> $ /tmp/test1.sh
> hB
> $ /tmp/test2.sh
> hBH
> 
> Since reset_shell_flags is only called in this circumstance, it seems
> that turning off history expansion should be the right thing to do in
> that function.

Thanks for the report and fix.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
		 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/

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Re: histexpand in shebang-less script Chet Ramey <chet.ramey@case.edu> - 2020-07-27 15:22 -0400

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