What is the meaning of the environment variable! :: = :: \

Question

I found that my environment variables are strange:

$ env
...
! :: = :: \
...

When I launch a shell or run a bash script, it is sometimes present, sometimes not. And when it's absent, my bash calls for $ (...) subnets require 3 escape backslashes instead of 1.

Any idea what it is and how to install it?

Answer 1

Cygwin , Windows (cmd.exe), MS-DOS. , !C:=C:\Users\Ross Ridge env. Windows =X:=X:\Path, Cygwin = !, Unix.

, , !::=::\ Cygwin, , =::=::\ Windows, Cygwin. , Windows =::=::\, : , Raymond Chen . Windows , Win-R Cygwin bash , cmd.exe, , .