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Re: is it normal that set -x unset commands dont display special chars i

From: Chet Ramey
Subject: Re: is it normal that set -x unset commands dont display special chars in the content
Date: Sun, 28 Feb 2021 19:03:50 -0500
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.7.1

On 2/28/21 6:19 PM, kfm@plushkava.net wrote:

The check for shell special characters, which results in single quoting,
comes before whether there are any characters that would require ANSI-C
quoting. This is not specific to unset.

In fairness, I don't think it's strictly incorrect to say that the outcome is different "for" one of two commands used in a trivial example. I was only attempting to clarify the circumstances that begat the original question.

I understand. The point is that it's faulty reasoning to say that it's a
difference between two commands when there are more differences than the
(builtin) command name itself. It's one of the first rules of
troubleshooting: reduce the number of variables between cases.

In this case, running `:' and `unset' with the same arguments would have
shown that that difference was in how the arguments are treated, not the
builtin itself.

``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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