* Environment variable named !:: (exclamation mark + colon + colon)
@ 2020-12-05 14:24 tzccinct
2020-12-05 16:05 ` Csaba Raduly
0 siblings, 1 reply; 2+ messages in thread
From: tzccinct @ 2020-12-05 14:24 UTC (permalink / raw)
To: cygwin
Hi,
I have found an environment variable that has a strange name `!::'
(exclamation mark + colon + colon) on my terminal (both mintty and Tera
Term). The value is also strange, `::\' (colon + colon + backslash).
$ env | sort | head -n 3
!::=::\
_=/usr/bin/env
ALLUSERSPROFILE=C:\ProgramData
Is this an expected environment variable on Cygwin? If so, what is this for?
Best regards,
tzccinct
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Environment variable named !:: (exclamation mark + colon + colon)
2020-12-05 14:24 Environment variable named !:: (exclamation mark + colon + colon) tzccinct
@ 2020-12-05 16:05 ` Csaba Raduly
0 siblings, 0 replies; 2+ messages in thread
From: Csaba Raduly @ 2020-12-05 16:05 UTC (permalink / raw)
To: tzccinct; +Cc: cygwin list
On Sat, 5 Dec 2020 at 15:25, tzccinct wrote:
>
> Hi,
>
> I have found an environment variable that has a strange name `!::'
> (exclamation mark + colon + colon) on my terminal (both mintty and Tera
> Term). The value is also strange, `::\' (colon + colon + backslash).
>
> $ env | sort | head -n 3
> !::=::\
> _=/usr/bin/env
> ALLUSERSPROFILE=C:\ProgramData
>
This seems to be related :
https://unix.stackexchange.com/questions/251174/strange-environment-variable-in-cygwin
Csaba
--
You can get very substantial performance improvements
by not doing the right thing. - Scott Meyers, An Effective C++11/14 Sampler
So if you're looking for a completely portable, 100% standards-conformant way
to get the wrong information: this is what you want. - Scott Meyers (C++TDaWYK)
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