what is yarn --cwd?

I have a folder which contains several repos and I need to run them all to start the service. So I was planning running in the parent folder with yarn --cwd ./f1 start & yarn --cwd ./f2 start ...But seems the --cwd will trick the dotenv package. My dotenv cannot read any of my environmental variables, and now even I am going in the actual folder I still cannot run it. What is going on? Can I revert this cwd thing?​Thanks

Submitted March 24, 2020 at 01:58AM by GreatFireWallSucks