A command interprets a relative path from your current directory. The same filename can point to different files after you change folders. Use pwd when you are unsure where you are, and read an absolute path from its first slash. A parent directory is written as two dots.
Changing directories doesn't move a file. In these tasks, inspect the intake folder before handing its path to another team. For example, cd reports starts from the directory shown by pwd, while cd /tmp starts from the filesystem root. A leading slash changes the meaning.
After cd .., a relative filename refers to the parent directory's entry. Confirm the final directory before running a command that reads or writes several files.