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From: Ilkka Virta <itvirta@iki.fi>
Newsgroups: gnu.bash.bug
Subject: Re: Arithmetic evaluation of negative numbers with base prefix
Date: Tue, 18 Jun 2019 19:13:26 +0300
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On 18.6. 18:20, Greg Wooledge wrote:
> On Tue, Jun 18, 2019 at 10:27:48AM -0400, Chet Ramey wrote:
>> $ ksh93 -c 'echo ${.sh.version}'
>> Version ABIJM 93v- 2014-09-29
>> $ ksh93 -c 'echo $(( 10# ))'
>> ksh93:  10# : arithmetic syntax error
> 
> I guess most Linux distributions are not shipping the 2014 version of
> ksh93 yet...?

Yeah, I had the one from Debian. I'm not even sure what the current 
version of ksh is.

At least the newer versions throw an error instead of silently doing the 
unexpected.

> wooledg:~$ ksh -c 'echo $(( 10# ))'
> 0
> wooledg:~$ dpkg -l ksh | tail -1
> ii  ksh            93u+20120801-3.4 amd64        Real, AT&T version of the Korn shell
> wooledg:~$ ksh -c 'echo ${.sh.version}'
> Version AJM 93u+ 2012-08-01
> 
> Seems kinda weird to continue calling it "ksh93" if it's being changed,
> but I don't make the decisions.
> 


-- 
Ilkka Virta / itvirta@iki.fi