Which of the following file set in the current directory are identified by the regular expression a?b*
A. afcc, aabb
B. aabb, axbc
C. abbb, abxy
D. abcd, axbb
Answer: Option B
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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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