What does the following command do? ps-ef | grep dfluse O a. It lists all of the processes in full format, except those processes with the text dfluser O b. It lists all processes in full format and displays only those that have dfluser somewhere in the text O c. It add the grep process to the system, which belongs to dfluser O d. It lists all of the print jobs associated with dfluser O e. It opens the print queue and deletes all jobs except those belonging to dfluser

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.