CH10

Question 1

A Pipe allows you to?

…send the same input to multiple commands.
…type multiple commands at one prompt.
…send the output of one command to another.
…send the output of a command to a file.

Answer 1

…send the output of one command to another.

Question 2

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

sort < list.file
cat list.file&raquo_space; sort
echo list.file > sort
cat list.file | sort

Answer 2

sort < list.file

cat list.file | sort

Question 3

3. The grep command can be used with glob characters?

True
False

Answer 3

True

Question 4

4. Which of the following commands will display only lines that begin with start?

grep \start file.txt
grep $start file.txt
grep *start file.txt
grep ^start file.txt

Answer 4

grep ^start file.txt

Question 5

5. Which of the following commands will display only lines that begin with test?

grep $test* file.txt
grep *test file.txt
grep &test file.txt
grep ^test file.txt

Answer 5

grep ^test file.txt

Question 6

6. Which of the following commands will display lines that contain either start or end?

egrep ‘start|end’ file.txt
egrep (start|end) file.txt
egrep start end file.txt
egrep start&end file.txt

Answer 6

egrep ‘start|end’ file.txt

Question 7

7. Which option for the cut command is used to specify a delimiter?

-D
-f
=
-d

Answer 7

-d

Question 8

8. Which option for the wc command will print the total number of words in a file?

• l
• C
• L
• w

Answer 8

-w

Question 9

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

True
False

Answer 9

True

Question 10

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

True
False

Answer 10

True