On 11/27/16 12:33 PM, Bize Ma wrote:
> Bash Version: 4.4
> Patch Level: 5
> Release Status: release
>
> Description:
> The ~ operator is called not, and does a one's complement of the
> following value. That works correctly with
>
> $ echo $(( ~1 ))
> -2
>
> Even with
>
> $ echo $(( ~0 ))
> -1
>
> But fails with this:
>
> $ echo $((~0))
> bash: /home/user: syntax error: operand expected (error token is
> "/home/user")
Yes, this is a problem. Thanks for the report. I'll fix it in the
next devel branch push. For the time being, you can include the
leading space to suppress the unwanted tilde expansion.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU [email protected] http://cnswww.cns.cwru.edu/~chet/
