How to set env with a dot?
Solution 1:
Actually a colleague just asked me and I found a work-around - use
env var.with.dots=value command
Solution 2:
The dot is not a valid character in a shell identifier.
So the answer is "you cannot do what you ask":
name A word consisting only of alphanumeric characters and under- scores, and beginning with an alphabetic character or an under- score. Also referred to as an identifier.