top

Question 1

top

Answer 1

top provides a dynamic real-time view of a running system.

Question 2

top

• b
• c
• d
• E
• H
• i

Answer 2

• b, :Batch-mode, Starts top in Batch mode which could be useful for sending output from top to other programs or to a file.
• c, :Command-line/Program-name toggle, Starts top with the last remembered ‘c’ state reversed.
• d, :Delay-time interval as: -d ss.t, Specifies the delay between screen updates.
• E: Extend-Memory-Scaling as: -E k | m | g | t | p | e

Instructs top to force summary area memory to be scaled as:
k - kibibytes
m - mebibytes
g - gibibytes
t - tebibytes
p - pebibytes
e - exbibytes

• H, :Threads-mode operation, Instructs top to display individual threads.
• i, :Idle-process toggle, Starts top with the last remembered ‘i’ state reversed.

Question 3

top

• n
• p
• s
• S
• u

Answer 3

• n, :Number-of-iterations limit as: -n number, Specifies maximum number of iterations, or frames top should produce before ending.
• p, Monitor-PIDs mode as: -pN1 -pN2 …, Monitor only processes with specified process IDs.
• s, :Secure mode, Starts top with secure mode forced, even for root.
• S, Cumulative time toggle, Starts top with the last remembered ‘S’ state reversed.
• u, User filter mode: Displays only processes with a user ID or name matching that given.

Question 4

top [Interactive Commands]

z

c

d

k

Shift+P

r

Answer 4

z, Highlight Running processes.

c, Show absolute path of processes.

d, Set screen refresh interval.

k, Kill a process.

Shift+P, Sort by CPU Utilisation.

r, Renice a process.