A systems administrator wants to know the current status of a series of dd jobs that were started in the background three hours ago.
Which of the following commands will achieve this task?
A . sudo killall CHUP dd
B . sudo killall dd
C . sudo killall CTERM dd
D . sudo killall -USR1 dd
Answer: D
Explanation:
Reference: https://askubuntu.com/questions/215505/how-do-you-monitor-the-progress-of-dd
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