LPI
101-350 · Question #67
What does the + symbol mean in the following grep regular expression: grep '^d[aei]\+d$' /usr/share/dict/words
The correct answer is A. Match the preceding character set ([aei]) one or more times. See the full explanation below for the reasoning.
Question
What does the + symbol mean in the following grep regular expression: grep '^d[aei]+d$' /usr/share/dict/words
Options
- AMatch the preceding character set ([aei]) one or more times.
- BMatch the preceding character set ([aei]) zero or more times.
- CMatch the preceding character set ([aei]) zero or one times.
- DMatch a literal + symbol.
How the community answered
(31 responses)- A77% (24)
- B6% (2)
- C13% (4)
- D3% (1)
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