DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org BB754385780E
Subject: Re: Noticed that mintty starts non-login bash with "Win+R mintty
 Enter".
To: cygwin@cygwin.com
References: <vriuzh1onxhb.fsf@gavenkoa.example.com>
From: Thomas Wolff <towo@towo.net>
Message-ID: <744d526c-651f-a1d9-72af-f150478e732c@towo.net>
Date: Tue, 5 Jan 2021 11:31:54 +0100
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Am 04.01.2021 um 23:33 schrieb Oleksandr Gavenko via Cygwin:
> I interact with Cygwin via mintty launched as "Win+R mintty Enter".
>
> ...
> After looking into docs I got that mintty should be launched with a parameter "-".
>
> Probably it was always that way.
Yes, but it might be appropriate to apply special handling for this case 
and imply login mode if started via Win+R.
What do others think?

> ================
>
> Checking POSIX standard on what might be defined in login shell:
>
> https://pubs.opengroup.org/onlinepubs/7908799/xbd/envvar.html (1997)
> https://pubs.opengroup.org/onlinepubs/009696899/basedefs/xbd_chap08.html (2004)
>
> I noticed that USER is mentioned but LOGNAME is not only mentioned by
> description is given:
>
>    The system shall initialize this variable at the time of login to be the
>    user's login name.
>
> Cygwin's /etc/profile has:
>
>    # Set the user id
>    USER="$(/usr/bin/id -un)"
>
> but there is nothing for LOGNAME... Shouldn't /etc/profile set LOGNAME too?
Looks reasonable.
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