invalid option error with WSL1

[xiaok]

I installed newest wslgit release and add it to PATH.

wsl1: Ubuntu 18.04LTS
git version in wsl1 : git version 2.17.1

wslgit
/bin/bash: - : invalid option

[andy-5]

Did you make any changes to .bashrc or similar startup scripts? Or do you use a different shell like zsh or fish in WSL?

As a quick test to debug this, you could try to run something like the following

wsl -e bash -c "git version"

and see if that works. This command is basically what wslgit runs internally.