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Groups > gnu.bash.bug > #14788

Re: exiting noninteractive shells on 'shift 2'

From Eric Blake <eblake@redhat.com>
Newsgroups gnu.bash.bug
Subject Re: exiting noninteractive shells on 'shift 2'
Date 2018-11-09 10:46 -0600
Organization Red Hat, Inc.
Message-ID <mailman.3755.1541782006.1284.bug-bash@gnu.org> (permalink)
References (1 earlier) <d8601773-69c8-16d1-82ab-5068d63bb24d@case.edu> <9ced783a-1c2b-f2c8-2287-fc0f6b967fa8@redhat.com> <fbe5c62d-d633-2fa5-32d1-591ff41a23cc@case.edu> <685c4d41-dcf1-61bc-0b65-04e2b180d568@redhat.com> <26ebd997-741d-0966-de68-4c0b4ea00c15@case.edu>

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On 11/9/18 10:42 AM, Chet Ramey wrote:

> 
>>      A diagnostic message shall be written to standard error whenever an
>> error condition occurs."
>>
>> Since 'shift 2' when $# is 1 is an error, and results in non-zero status,
>> it should print a diagnostic to stderr.
> 
> So maybe the thing to do is to turn on the shift_verbose option in posix
> mode.

Cool - I didn't realize we already had a shopt for that. Yes, it sounds 
like in POSIX mode, shift_verbose should be turned on.

On a related note, should turning on POSIX mode also auto-enable xpg_echo?

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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Re: exiting noninteractive shells on 'shift 2' Eric Blake <eblake@redhat.com> - 2018-11-09 10:46 -0600

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