Re: unset does not remove functions like a[b] unless -f is specified

[Chet Ramey]

On 2/4/23 4:23 AM, Koichi Murase wrote:

> As far as I test, there are four implementations that allow defining
> functions with slashes: Bash and Zsh allow executing the functions
> (even in their POSIX modes), and mksh and Yash don't allow executing
> them by default. 

Yash doesn't allow declaring functions with slashes in their names.


> If a non-POSIX (ksh-like) shell script defines any functions with
> names that have a slash and conflict with the real executable files
> the script wants to run, the script should be responsible for any
> problems caused by it. If the script wants to run the executable, the
> script obviously shouldn't define the function with the same name as
> the executable path. 

This breaks down in the face of function libraries like the one you've
built. Your statement is correct if the script knows all the functions
it has defined at the time it goes to execute the file in question.

--
``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/