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Que. What does the following command do ?
grep − vn  "abc" x
a. It will print all of the lines in the file x that match the search string "abc"
b. It will print all of the lines in file x that do not match the search string "abc"
c. It will print total no of the lines in file x that match the search string "abc"
d. It will print the specific line numbers of file x in which there is a match for the string "abc"
Answer:It will print all of the lines in the file x that match the search string "abc"

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