"Look at the contents of that directory. The file cmdline tells
you what command was used to launch this process. This can be
useful if the problem you have is launch-related. You'll be warned
that this might be binary, but it's mostly text and easy to read.
environ, similarly, gives you the command environment, which is
also useful for troubleshooting (try starting the process on
another machine and comparing the files); and the fd directory
allows you to check what the process is accessing."