[email protected] wrote:
> Description:
> use of $(< filename | program) does not work. It either should or it
> should be properly documented.
> The problem also happens on bash4.
>
> Repeat-By:
>
> qq=$(< /etc/passwd | grep sys)
> echo $qq
> # result is null
>
> Fix:
> Either fix the docs to tell people that a pipe is not allowed or fix
> the code to allow it.
That construct is very limited. As the bash man page says:
The command substitution $(cat file) can be replaced by the equivalent
but faster $(< file).
That seems pretty clear.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU [email protected] http://cnswww.cns.cwru.edu/~chet/
