Hoofdstuk 8

Question 1

A successful command will print output to STDOUT.

Answer 1

True

Question 2

A pipe allows you to… 8.3

Answer 2

…send the output of one command to another

Question 3

Channel 2 is: - 8.4.5

Answer 3

STDRR

Question 4

Which command(s) can be used to sort the lines of list.file alphabetically and display it on the screen? -8.8

Answer 4

sort cat list.file | sort

Question 5

The grep command… - 8.11

Answer 5

…can be used to filter lines in a file or the output of another command based on matching a pattern.

Question 6

Which of the following commands will display only lines that begin with start? - 8.12.4

Answer 6

grep ^start file.txt

Question 7

Which of the following commands scans the file to determine file locations? 8.5

Answer 7

find

Question 8

Which option for the cut command is used to specify the field? - 8.10

Answer 8

-f

Question 9

Which command can be used to print line numbers?

Answer 9

n1

Question 10

The command echo “text”&raquo_space; file.txt will not overwrite file.txt if it already exists. 8.4.4

Answer 10

True

Question 11

The grep command… - 8.11

Answer 11

…will display all the lines in a file containing the specified Regular Expression.

Question 12

Which of the following commands will display only lines that begin with test? - 8.13

Answer 12

grep ^test file.txt

Question 13

Which of the following commands will display lines that contain either start or end? - 8.13

Answer 13

egrep ‘start|end’ file.txt

Question 14

Which option for the wc command will print the number of lines in a file? 8.9

Answer 14

-w

Question 15

The command echo “text” > file.txt will create file.txt if it does not already exist. 8.4.4

Answer 15

True

Question 16

The command echo “text” > file.txt will not overwrite file.txt if it already exists. - 8.4.4

Answer 16

False