Re: why is the - modifier useful

Eric Cook <[email protected]> Tue, 22 Jul 2025 10:34:38 -0400

Newsgroups	gmane.comp.shells.zsh.devel,gmane.comp.shells.zsh.user
Message-ID	<[email protected]>

On 7/22/25 4:01 AM, Martijn Dekker wrote:
> Op 22-07-2025 om 03:46 schreef Bart Schaefer:
>> On Mon, Jul 21, 2025 at 2:19 PM Martijn Dekker <[email protected]> wrote:
>>>
>>> All the POSIXy shells care to this day, zsh included. So does tcsh.
>>
>> True, but that's not quite the same as it being useful.  The shells
>> all have other options to make them login shells ...
> 
> Yes. I didn't think quite all of them do, but I was wrong about that -- even dash has an -l option. It's not in POSIX though.
> 
> Ah. Found one: NetBSD sh doesn't have -l :-)

And for shells without an option, you have ARGV0=-sh sh with the value of ARGV0 not being limited to an `-' prefix.