LPI ESSENTIALS

Question 1

Match any one character ENCLOSED within it

Answer 1

Brackets

Question 2

Used to SURROUND subexpressions and specify how operators should be applied

Answer 2

Parenthesis

Question 3

Matches with ONE OR MORE occurrences of a character

Answer 3

+

Question 4

Match SPECIAL characters

Answer 4

\

Question 5

Matches with ZERO OR ONE occurrence of a character

Answer 5

?

Question 6

uses regular expressions

Answer 6

grep

Question 7

locates files and supports pattern matches

Answer 7

find

Question 8

basic statistics on text files

Answer 8

wc

Question 9

displays the number of lines that match

Answer 9

grep -c | –count

Question 10

takes pattern input from the SPECIFIED FILE

Answer 10

grep -f | –file=file

Question 11

perform a case insensitive search

Answer 11

grep - i | -ignore

Question 12

searches directory and sub directory

Answer 12

grep -r | -recursive

Question 13

extended regular expressions

Answer 13

-extended-regexp | grep -E

Question 14

ignores case (default is Cap letters first)

Answer 14

sort -f | –ignore-case

Question 15

sorts by numeric value

Answer 15

sort -n | sort –numeric-sort

Question 16

writes results to file specified

Answer 16

sort –output=file | sort o

Question 17

sorts in descending order (default is ascending)

Answer 17

sort –reverse

Question 18

writes STANDARD INPUT and STANDART OUTPUT to a specified file

Answer 18

<>

Question 19

writes STANDARD OUTPUT and STANDARD ERROR to a file

Answer 19

&>