$PATH contains dot but unclear where it comes from

[Eliot Moss]

As others have said, cygwin does not add . to the path
itself.  It must be something in your .bash_profile,
.bashrc, or other script sourced from them.

Going through the output of your login with tracing
enabled, as previously described, really is a straightforward
way to track this down ...

Regards -- Eliot Moss

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