Is there any way to compile .pde file in git bash?
If you are using the Command Prompt in Windows, you do not need to use git bash. You can make your sketches using processing-java.exe and call git commands for version control. On a side note, there is a git version control tool in Processing. You should be able to install it using the Contribution Manager. The name of the tool is Git Manager
I just did a test in git bash and it can see my current PATH env variable. So, if this is true in your case, you should be able to invoke processing-java. If you do not provide any parameters to that command, it will show you a help menu showing you how to use it.
Kf