201205622
TRANSCRIPT
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7/30/2019 201205622
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Ans 1: grep -E '^(.)(.).*\2\1$'
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Ans 10: sed -n '/^\/\*[^\*\/]*\*\/$/p' file2.htmlExp 11: when < comes pattern starts after that any character can come except < and > any number of times after that > and this pattern is substituted by ' '(space)