pip package version specification ">=" and redirection

[Zhiozhio]

This must be the most "hilarious" bug have been reported.

When I use the provided command to install pip packages, It turns out nothing happen (no output and not return). I just wait and realise that something is wrong. But I don't know where. Then I checked the conda envs directory and found some files named as '=0.10.0.0', '=0.8.5' ... I guess that the command
pip install open3d>=0.10.0.0
must be translated as pip install open3d and redirect the stdout to a file '=0.10.0.0'. :-D
Then I open these files and the contents are just the output of pip install which should be printed to the terminal instead.

It confused me half an hour and searched for many solutions. But I didn't find an issue about this here. Am I the only one came into this issue?

hope this can help someone else and the author could get some chage of the Readme.