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Re: Request for enhancement: links to 'true' and 'false'

From: Eric Blake
Subject: Re: Request for enhancement: links to 'true' and 'false'
Date: Mon, 22 Apr 2013 06:40:34 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130402 Thunderbird/17.0.5

On 04/20/2013 11:28 AM, Bob Proulx wrote:
> But even expr is now obsoleted by built in shell math.  Use ((...)) to
> perform the math in the shell with no external program calls.

In bash, yes, but not portable.  $(()) is standardized by POSIX, but
(()) is not, and has some surprising corner cases because it is not

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library

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