Path of directory symlink is resolved to real path

[jakwings]

$ tree -F
.
├── a/
│   └── a
└── b -> a/

In directory "b":

$ fd -a  # or fd -a . .
/path/a
/path/a/a
$ fd . $PWD
/path/a
/path/a/a

(For fd . $PWD, with or without option -L?) The result should be /path/b and /path/b/a unless resolving is requested by the user.

[jakwings]

It is impossible to know whether the current directory . is a symlink. So we cannot fix fd -a.

And for fd "" "$PWD", we need a way to run shell scripts on both Windows and Linux.