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Groups > alt.msdos.batch.nt > #19712
| From | "R.Wieser" <address@is.invalid> |
|---|---|
| Newsgroups | alt.comp.os.windows-xp, alt.windows7.general, alt.comp.os.windows-10, alt.msdos.batch.nt |
| Subject | Re: Whats the %=C:% environment variable used for ? |
| Date | 2026-02-06 20:32 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <10m5foo$fl4f$1@dont-email.me> (permalink) |
| References | (1 earlier) <10m4utk$8i6n$1@dont-email.me> <10m550b$b2ac$1@toylet.eternal-september.org> <10m56t4$bu2j$1@dont-email.me> <10m59lv$3s7d$1@news.xmission.com> <10m5b6p$ckdh$1@dont-email.me> |
Cross-posted to 4 groups.
Herbert,
> some more information about "Undocumented Dynamic variables":
>
> https://ss64.com/nt/syntax-variables.html
Funny: They start with mentioning the allowed characters for the variable
name, and a bit later on showing that that gets violated.
And by the way, as I've mentioned a few times, the "=" *can* be part of the
variable name (as its first character) just not when trying to write.(to)
one ("echo %=C:%" does work)
> and especially for the %=C:% :
>
> https://devblogs.microsoft.com/oldnewthing/20100506-00/?p=14133
[quote]
But why put these internal variables in the environment? Can't they just be
regular variables inside the cmd.exe process?
The variables are exported into the environment because you want these "fake
per-drive current directories" *to be inherited by child processes*.
[/quote]
(bolding mine)
Yep, at some point I realized that that might be the /only/ reason for them
to be there.
[quote]
What should you do about these variables, then?
Nothing. Just let them be and do their jobs. I’m just mentioning them here
so you won’t freak out when you see them.
[/quote]
Meh. :-)
Thanks for the info.
Regards,
Rudy Wieser
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Re: Whats the %=C:% environment variable used for ? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-02-06 21:06 +0800
Re: Whats the %=C:% environment variable used for ? "R.Wieser" <address@is.invalid> - 2026-02-06 15:47 +0100
Re: Whats the %=C:% environment variable used for ? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-02-07 00:31 +0800
Re: Whats the %=C:% environment variable used for ? "R.Wieser" <address@is.invalid> - 2026-02-06 18:02 +0100
Re: Whats the %=C:% environment variable used for ? "R.Wieser" <address@is.invalid> - 2026-02-06 18:05 +0100
Re: Whats the %=C:% environment variable used for ? gazelle@shell.xmission.com (Kenny McCormack) - 2026-02-06 17:50 +0000
Re: Whats the %=C:% environment variable used for ? Herbert Kleebauer <klee@unibwm.de> - 2026-02-06 19:16 +0100
Re: Whats the %=C:% environment variable used for ? "R.Wieser" <address@is.invalid> - 2026-02-06 20:32 +0100
Re: Whats the %=C:% environment variable used for ? Maria Sophia <mariasophia@comprehension.com> - 2026-02-06 14:06 -0500
Screenshots etc. (was: Re: Whats the %=C:% environment variable used for ?) "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-06 23:48 +0000
Re: Screenshots etc. (was: Re: Whats the %=C:% environment variable used for ?) gazelle@shell.xmission.com (Kenny McCormack) - 2026-02-07 03:22 +0000
Re: Screenshots etc. Herbert Kleebauer <klee@unibwm.de> - 2026-02-07 13:39 +0100
Re: Screenshots etc. "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-07 20:08 +0000
Re: Screenshots etc. JJ <jj4public@gmail.com> - 2026-02-08 11:13 +0700
Re: Screenshots etc. "R.Wieser" <address@is.invalid> - 2026-02-08 09:51 +0100
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Re: Screenshots etc. "R.Wieser" <address@is.invalid> - 2026-02-08 09:10 +0100
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Re: why graphical screenshot? from a command prompt console window? Maria Sophia <mariasophia@comprehension.com> - 2026-02-09 13:04 -0500
Re: why graphical screenshot? from a command prompt console window? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-02-10 13:43 +0800
Re: why graphical screenshot? from a command prompt console window? Maria Sophia <mariasophia@comprehension.com> - 2026-02-10 03:59 -0500
Re: why graphical screenshot? from a command prompt console window? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-02-10 22:47 +0800
Re: why graphical screenshot? from a command prompt console window? Daniel70 <daniel47@nomail.afraid.org> - 2026-02-10 22:04 +1100
Re: why graphical screenshot? from a command prompt console window? Maria Sophia <mariasophia@comprehension.com> - 2026-02-10 07:37 -0500
Re: why graphical screenshot? from a command prompt console window? Steve Hayes <hayesstw@telkomsa.net> - 2026-02-12 06:00 +0200
Re: why graphical screenshot? from a command prompt console window? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-02-16 21:09 +0800
Re: why graphical screenshot? from a command prompt console window? Paul <nospam@needed.invalid> - 2026-02-16 08:52 -0500
Re: why graphical screenshot? from a command prompt console window? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-02-17 17:08 +0800
Re: why graphical screenshot? from a command prompt console window? "R.Wieser" <address@is.invalid> - 2026-02-16 16:35 +0100
Re: why graphical screenshot? from a command prompt console window? Daniel70 <daniel47@nomail.afraid.org> - 2026-02-17 12:50 +1100
Re: why graphical screenshot? from a command prompt console window? Herbert Kleebauer <klee@unibwm.de> - 2026-02-17 07:51 +0100
Re: why graphical screenshot? from a command prompt console window? Daniel70 <daniel47@nomail.afraid.org> - 2026-02-17 21:39 +1100
Re: why graphical screenshot? from a command prompt console window? Paul <nospam@needed.invalid> - 2026-02-17 10:19 -0500
Re: why graphical screenshot? from a command prompt console window? "Carlos E. R." <robin_listas@es.invalid> - 2026-02-17 19:57 +0100
Re: why graphical screenshot? from a command prompt console window? Frank Slootweg <this@ddress.is.invalid> - 2026-02-17 19:19 +0000
Re: why graphical screenshot? from a command prompt console window? "R.Wieser" <address@is.invalid> - 2026-02-17 10:39 +0100
Re: why graphical screenshot? from a command prompt console window? Daniel70 <daniel47@nomail.afraid.org> - 2026-02-17 21:44 +1100
Re: why graphical screenshot? from a command prompt console window? "R.Wieser" <address@is.invalid> - 2026-02-17 12:24 +0100
Re: why graphical screenshot? from a command prompt console window? Daniel70 <daniel47@nomail.afraid.org> - 2026-02-17 22:35 +1100
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Re: OT - releasing points (was: Re: why graphical screenshot? from a command prompt console window?) "R.Wieser" <address@is.invalid> - 2026-02-17 22:26 +0100
Re: OT - releasing points "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-18 12:32 +0000
Re: OT - releasing points "R.Wieser" <address@is.invalid> - 2026-02-18 15:49 +0100
Re: why graphical screenshot? from a command prompt console window? Paul <nospam@needed.invalid> - 2026-02-17 10:40 -0500
Re: why graphical screenshot? from a command prompt console window? "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2026-02-17 17:10 +0800
Re: why graphical screenshot? from a command prompt console window? "R.Wieser" <address@is.invalid> - 2026-02-17 11:01 +0100
Re: why graphical screenshot? from a command prompt console window? Paul <nospam@needed.invalid> - 2026-02-17 05:43 -0500
Re: why graphical screenshot? from a command prompt console window? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-17 21:11 +0000
Re: why graphical screenshot? from a command prompt console window? Char Jackson <none@none.invalid> - 2026-02-17 19:07 -0600
Re: why graphical screenshot? from a command prompt console window? Paul <nospam@needed.invalid> - 2026-02-18 12:56 -0500
Re: why graphical screenshot? from a command prompt console window? Paul <nospam@needed.invalid> - 2026-02-18 13:20 -0500
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Re: why graphical screenshot? from a command prompt console window? Frank Slootweg <this@ddress.is.invalid> - 2026-02-18 19:02 +0000
Re: why graphical screenshot? from a command prompt console window? Char Jackson <none@none.invalid> - 2026-02-18 22:51 -0600
Re: why graphical screenshot? from a command prompt console window? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-19 10:31 +0000
Re: why graphical screenshot? from a command prompt console window? Paul <nospam@needed.invalid> - 2026-02-19 10:02 -0500
Thunderbird and MIDs (was: Re: why graphical screenshot? from a command prompt console window?) "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-20 11:54 +0000
Re: Thunderbird and MIDs Paul <nospam@needed.invalid> - 2026-02-20 08:54 -0500
Re: Thunderbird and MIDs Frank Slootweg <this@ddress.is.invalid> - 2026-02-20 15:04 +0000
Re: Thunderbird and MIDs "R.Wieser" <address@is.invalid> - 2026-02-20 20:18 +0100
Re: Thunderbird and MIDs Frank Slootweg <this@ddress.is.invalid> - 2026-02-20 20:46 +0000
Re: Thunderbird and MIDs "R.Wieser" <address@is.invalid> - 2026-02-21 09:05 +0100
Re: Thunderbird and MIDs Daniel70 <daniel47@nomail.afraid.org> - 2026-02-21 21:39 +1100
Re: Thunderbird and MIDs Paul <nospam@needed.invalid> - 2026-02-20 17:00 -0500
Re: Thunderbird and MIDs Char Jackson <none@none.invalid> - 2026-02-20 17:00 -0600
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Re: Outlook and news (was: Re: Thunderbird and MIDs) Mark Lloyd <not.email@all.invalid> - 2026-02-22 19:12 +0000
Re: Outlook and news "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-23 05:16 +0000
Re: Outlook and news Daniel70 <daniel47@nomail.afraid.org> - 2026-02-23 20:24 +1100
Re: Outlook and news Frank Slootweg <this@ddress.is.invalid> - 2026-02-23 10:49 +0000
Re: Outlook and news Mark Lloyd <not.email@all.invalid> - 2026-02-23 18:32 +0000
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Re: Outlook and news Frank Slootweg <this@ddress.is.invalid> - 2026-02-24 12:14 +0000
Re: Outlook and news "Kerr-Mudd, John" <admin@127.0.0.1> - 2026-02-23 19:36 +0000
Re: Outlook and news (was: Re: Thunderbird and MIDs) Mark Lloyd <not.email@all.invalid> - 2026-02-22 19:12 +0000
Re: Outlook and news Paul <nospam@needed.invalid> - 2026-02-22 19:57 -0500
Re: Outlook and news ...w¡ñ§±¤ñ <winstonmvp@gmail.com> - 2026-02-21 03:30 -0700
Re: Outlook and news "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-21 13:49 +0000
Re: Outlook and news ...w¡ñ§±¤ñ <winstonmvp@gmail.com> - 2026-02-21 11:50 -0700
Re: Thunderbird and MIDs Char Jackson <none@none.invalid> - 2026-02-20 17:01 -0600
Re: Thunderbird and MIDs Paul <nospam@needed.invalid> - 2026-02-20 18:45 -0500
Re: why graphical screenshot? from a command prompt console window? Char Jackson <none@none.invalid> - 2026-02-19 11:45 -0600
Re: why graphical screenshot? from a command prompt console window? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-02-20 12:16 +0000
Re: why graphical screenshot? from a command prompt console window? Daniel70 <daniel47@nomail.afraid.org> - 2026-02-17 21:58 +1100
Re: Screenshots etc. (was: Re: Whats the %=C:% environment variable used for ?) Anton Shepelev <anton.txt@g{oogle}mail.com> - 2026-02-18 19:30 +0300
Re: Whats the %=C:% environment variable used for ? "R.Wieser" <address@is.invalid> - 2026-02-06 20:18 +0100
Re: Whats the %=C:% environment variable used for ? Herbert Kleebauer <klee@unibwm.de> - 2026-02-06 21:24 +0100
Re: Whats the %=C:% environment variable used for ? "R.Wieser" <address@is.invalid> - 2026-02-07 07:31 +0100
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