The 'mapfile' command
A. reads lines of standard input and assigns each to the element of an indexed array
B. reads lines of standard output file
C. reads lines of standard error file
D. none of the mentioned
Answer: Option A
A. reads lines of standard input and assigns each to the element of an indexed array
B. reads lines of standard output file
C. reads lines of standard error file
D. none of the mentioned
Answer: Option A
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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