You want to search the file myfile for all occurances of string containing at least five characters, where character number 2 and 5 are 'a' and character number 3 is NOT 'b'. Which command would you…

The correct answer is B. grep .a[^b].a myfile. You've hit your Sonnet limit · resets Jun 8, 9am (UTC)

GNU and Unix Commands

Question

You want to search the file myfile for all occurances of string containing at least five characters, where character number 2 and 5 are 'a' and character number 3 is NOT 'b'. Which command would you use?

Options

Agrep a*^b*a myfile
Bgrep .a[^b].a myfile
Cgrep .[a].*.[a] myfile
Dgrep .a*^b..a myfile

How the community answered

(33 responses)

A
9% (3)
B
82% (27)
C
3% (1)
D
6% (2)

Explanation

You've hit your Sonnet limit · resets Jun 8, 9am (UTC)

Topics

#grep#regex patterns#character classes#text matching

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