The file /proc/[PID]/cgroups
A. describes control groups to which the process belongs
B. contains the information about all groups of the system
C. provides the information about the group which has generated the process
D. none of the mentioned
Answer: Option A
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What command is used to count the total number of lines, words, and characters contained in a file?
A. countw
B. wcount
C. wc
D. count p
E. None of the above
What command is used with vi editor to delete a single character?
A. x
B. y
C. a
D. z
E. None of the above

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