Sofiware Projects 0.6 Linux: free is a command that displays used and available memory in your system. Read man page of free command. Run the command free -o several times, running other programs in between, and stores the results in a file. Draw a graph as follows: X-axis: MB used; for the Y-axis, use (i) Memory Used per unit time; (ii) (Memory Used - Memory Buffered - Memory Cached) per unit time; and (3) Swap Used per unit time. Explain the behavior of this graph with respect to memory utilization in the presence of running various applications