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| From | Keith Thompson <Keith.S.Thompson+u@gmail.com> |
|---|---|
| Newsgroups | comp.unix.shell |
| Subject | Re: Which shell and how to get started handling arguments |
| Date | 2024-04-16 11:54 -0700 |
| Organization | None to speak of |
| Message-ID | <87y19dqgsh.fsf@nosuchdomain.example.com> (permalink) |
| References | <uvj65n$9aep$1@dont-email.me> <uvjfpn$b4oi$1@dont-email.me> <8734rms479.fsf@nosuchdomain.example.com> <slrnv1sn6k.25p4.naddy@lorvorc.mips.inka.de> |
Christian Weisgerber <naddy@mips.inka.de> writes:
> On 2024-04-15, Keith Thompson <Keith.S.Thompson+u@gmail.com> wrote:
>> Bash has an option that tells it to (attempt to) restrict itself to
>> POSIX semantics:
>
> No, it does not:
>
>> Starting Bash with the '--posix' command-line option or executing
>> 'set -o posix' while Bash is running will cause Bash to conform more
>> closely to the POSIX standard by changing the behavior to match that
>> specified by POSIX in areas where the Bash default differs.
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> This only tweaks bash's behavior where it otherwise differs from
> POSIX. It does not disable the myriad extensions.
I stand corrected.
> There is a tool ShellCheck that among other things can be used to
> warn about unportable code in shell scripts.
> https://www.shellcheck.net/
>
> I haven't used it myself yet. It is written in Haskell, so it
> suffers itself from portability concerns.
There's also a "shellcheck" application, installable as a package on
Ubuntu and presumably many other systems. I use it regularly, almost
always on scripts with "#!/bin/bash" so it doesn't check POSIX rules.
But when invoked on a script with "#!/bin/sh" or with "--shell=sh" it
claims to warn about POSIX portability issues.
https://github.com/koalaman/shellcheck
--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Medtronic
void Void(void) { Void(); } /* The recursive call of the void */
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Which shell and how to get started handling arguments James Harris <james.harris.1@gmail.com> - 2024-04-15 13:22 +0100
Re: Which shell and how to get started handling arguments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-04-15 16:03 +0200
Re: Which shell and how to get started handling arguments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-04-15 16:34 +0200
Re: Which shell and how to get started handling arguments Christian Weisgerber <naddy@mips.inka.de> - 2024-04-15 13:35 +0000
Re: Which shell and how to get started handling arguments Helmut Waitzmann <nn.throttle@xoxy.net> - 2024-04-15 23:03 +0200
Re: Which shell and how to get started handling arguments Kaz Kylheku <643-408-1753@kylheku.com> - 2024-04-16 01:14 +0000
Re: Which shell and how to get started handling arguments Helmut Waitzmann <nn.throttle@xoxy.net> - 2024-04-16 22:23 +0200
Re: Which shell and how to get started handling arguments Ben Bacarisse <ben.usenet@bsb.me.uk> - 2024-04-15 15:45 +0100
Re: Which shell and how to get started handling arguments Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2024-04-15 15:06 +0000
Re: Which shell and how to get started handling arguments Christian Weisgerber <naddy@mips.inka.de> - 2024-04-15 15:36 +0000
Re: Which shell and how to get started handling arguments gazelle@shell.xmission.com (Kenny McCormack) - 2024-04-15 17:38 +0000
Re: Which shell and how to get started handling arguments Kaz Kylheku <643-408-1753@kylheku.com> - 2024-04-15 17:57 +0000
Re: Which shell and how to get started handling arguments Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2024-04-15 20:37 +0000
Re: Which shell and how to get started handling arguments Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-04-15 14:31 -0700
Re: Which shell and how to get started handling arguments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-04-16 10:19 +0200
Re: Which shell and how to get started handling arguments Christian Weisgerber <naddy@mips.inka.de> - 2024-04-16 11:11 +0000
Re: Which shell and how to get started handling arguments Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-04-16 11:54 -0700
Re: Which shell and how to get started handling arguments gazelle@shell.xmission.com (Kenny McCormack) - 2024-04-16 19:59 +0000
Re: Which shell and how to get started handling arguments Christian Weisgerber <naddy@mips.inka.de> - 2024-04-16 21:57 +0000
Re: Which shell and how to get started handling arguments Kaz Kylheku <643-408-1753@kylheku.com> - 2024-04-16 20:45 +0000
Re: Which shell and how to get started handling arguments Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-04-16 16:38 -0700
Re: Which shell and how to get started handling arguments Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-04-17 00:52 +0000
Re: Which shell and how to get started handling arguments gazelle@shell.xmission.com (Kenny McCormack) - 2024-04-17 09:02 +0000
Re: Which shell and how to get started handling arguments Christian Weisgerber <naddy@mips.inka.de> - 2024-04-17 14:23 +0000
Re: Which shell and how to get started handling arguments Helmut Waitzmann <nn.throttle@xoxy.net> - 2024-04-15 23:49 +0200
Re: Which shell and how to get started handling arguments Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-04-15 22:20 +0000
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