Mark Breakdown

Task4:
T4-test1: jobs pause the shell until finished (0.75)
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mark recieved: 0.75

T4-test2: Ctrl+C kills process (0.25)
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mark recieved: 0.25

T4-test3: Ctrl+\ exits crash(0.5)
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mark recieved: 0.5

T4-test4: fg with PID  (0.25)
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mark recieved: 0.0

T4-test4: fg with JID  (0.25)
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mark recieved: 0.0

total
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mark recieved: 1.5