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Re: unset does not remove functions like a[b] unless -f is specified
From: |
Chet Ramey |
Subject: |
Re: unset does not remove functions like a[b] unless -f is specified |
Date: |
Sat, 4 Feb 2023 15:04:40 -0500 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 |
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/
- Re: unset does not remove functions like a[b] unless -f is specified, (continued)
- Re: unset does not remove functions like a[b] unless -f is specified, Chet Ramey, 2023/02/03
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/03
- Re: unset does not remove functions like a[b] unless -f is specified, Oğuz, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Oğuz, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Oğuz İsmail Uysal, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Oğuz, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified,
Chet Ramey <=
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Robert Elz, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Chet Ramey, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Chet Ramey, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Chet Ramey, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Koichi Murase, 2023/02/04
- Re: unset does not remove functions like a[b] unless -f is specified, Chet Ramey, 2023/02/06