<s>[INST] I've written a Python program that processes CSV files as part of an automated workflow. The program runs fine with no error when I run it from the command line or from a Python IDE (e.g., PyCharm). However, when I deploy it to our Docker container (running on a Red Hat Linux host), I get intermittent error messages that "No such file or directory:" followed by a CSV file name. However, I verified via `ls` that the CSV file does exist.
I suspect that Docker's instance of Python is running with different permissions than when I run it from the command line or PyCharm versus the container.

That is, I think I have a mix-up of absolute and relative paths when I run it in the container.

Can you look up and provide bullet points that summarize the differences in behavior between '/path/to/file' and 'path/to/file'?[/INST]