A fully qualified path name - one that is absolute to the top of your filesystem.

/etc/X11/XF86Config-4 is an example of a FullPath
C:\Windows\System32\MFC42.dll is also an example of a FullPath
../X11/XF86Config-4 is not a full path - its relative to the current working directory (CWD)

The unix command 'pwd' will show you the full path of the current working directory

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