help-bash
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Help-bash] Awkward behavior of empty arrays


From: Chet Ramey
Subject: Re: [Help-bash] Awkward behavior of empty arrays
Date: Thu, 7 Sep 2017 15:35:59 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.3.0

On 9/7/17 12:23 PM, Andy Chu wrote:

> I did a very principled implementation of errexit in OSH.  I didn't find
> any problems with it in THEORY.  Yes in practice bash has surprising
> behavior, but in theory it's a good idea, and it's not hard to implement.
> There are just a handful of places where you turn it off: the condition of
> while/until loops, if conditions, all clauses in && and || except the last
> clause, etc.
> 
> The main thing I disallowed was the weird behavior mutating errexit while
> it's disabled, which bash has a somewhat odd rule for.  Example:

Which Posix requires.

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



reply via email to

[Prev in Thread] Current Thread [Next in Thread]