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Re: Wrong command option in the manual examples


From: Ilkka Virta
Subject: Re: Wrong command option in the manual examples
Date: Mon, 23 Sep 2019 12:29:18 +0300
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:60.0) Gecko/20100101 Thunderbird/60.9.0

On 22.9. 21:15, Chet Ramey wrote:
On 9/20/19 10:24 PM, hk wrote:

Bash Version: 5.0
Patch Level: 0
Release Status: release

Description:
         On the section 3.2.6(GNU Parallel, page 16 in the pdf) of Bash
Reference Manual. The manual uses `find' command to illustrate
possible use cases of `parallel' as examples. but the option `-depth'
does not accept any argument, I think it means `-maxdepth` option
instead.

-depth n
       True if the depth of the file relative to the starting point of
       the traversal is n.

It's not in POSIX, and maybe GNU find doesn't implement it.

That seems to raise a question.

Isn't Bash a GNU project? Would it be prudent to use other GNU tools in examples, if standard POSIX features aren't sufficient? I can see that FreeBSD find has '-depth n' (as well the standard '-depth', somewhat confusingly) but should the reader of the manual be assumed to know the options supported by BSD utilities?

--
Ilkka Virta / itvirta@iki.fi



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