■ The output of this command shows that the root user has two active processes that are using the filesystem on your CD device: a bash shell (process ID 4317) and the vi text editor (process ID 4365). You can either terminate the processes manually by using the kill command and specifying the IDs of the processes that you want to terminate, or you can use the fuser command to do this for you.
■ The fuser command shows any processes associated with a specific file on a mounted filesystem. For example, to see any processes that have the file /media/cdrom /Future_ReadME.txt open, execute the fuser command with the name of this file as an argument, as in the following example:
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