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Re: Issues with history substitution and its documentation

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  Re: Issues with history substitution and its documentation Chet Ramey <chet.ramey@case.edu> - 2019-11-18 10:51 -0500

#15603 — Re: Issues with history substitution and its documentation

On 10/10/19 10:35 PM, Jim Monte wrote:

> There is an inconsistency with the documentation and behavior of the ^ word
> designator. According to documentation, it refers to the first argument but
> does not require a ':' before it if it starts the word designator. However,
> it does not act like the numerical word designator 1 at the end of a range.

Thanks for the report. This is a bug.

> 
> [root@localhost ~]# echo a b c
> a b c
> [root@localhost ~]# echo !!:1-1
> echo a
> a
> [root@localhost ~]# echo a b c
> a b c
> [root@localhost ~]# echo !!:^-^
> echo a b^
> a b^
> 
> Also it is not explicitly documented that :- is equivalent to :0-

Thanks, I'll add a note to the documentation.

-- 
``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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