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brayhan gutierrez cespedes
Quiz by brayhan gutierrez cespedes, updated more than 1 year ago
brayhan gutierrez cespedes
Created by brayhan gutierrez cespedes over 2 years ago
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Resource summary

Question 1

Question
Error messages generated by commands are sent where by default?
Answer
  • Log files
  • STDOUT
  • STDERR
  • STDIN

Question 2

Question
A successful command will print output to STDOUT.
Answer
  • True
  • False

Question 3

Question
Which of the following commands will direct error messages to the file, error.log?
Answer
  • ls /root >> error.log
  • ls /root 2> error.log
  • ls /root $> error.log
  • ls /root > error.log

Question 4

Question
A pipe allows you to…
Answer
  • …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.

Question 5

Question
Channel 2 is:
Answer
  • STDIN
  • STDALL
  • STDOUT
  • STDERR

Question 6

Question
Which of the following commands will append its output to output.file?
Answer
  • echo Testing > output.file
  • echo Testing >> output.file
  • output.file < echo Testing
  • echo Testing -> output.file

Question 7

Question
Which command(s) can be used to sort the lines of list.file alphabetically and display it on the screen?
Answer
  • sort < list.file
  • cat list.file | sort
  • cat list.file >> sort
  • echo list.file > sort

Question 8

Question
Which option of the head command will display only the first five lines of a file?
Answer
  • -l 5
  • No option needed; head displays only five lines by default.
  • -n
  • -n 5

Question 9

Question
The grep command…
Answer
  • …will display all the lines that begin with the specified Regular Expression.
  • …is not case sensitive.
  • …will display all the lines in a file containing the specified Regular Expression.
  • …will display the line numbers in a file that contain a specified Regular Expression.

Question 10

Question
The grep command can be used with glob characters.
Answer
  • True
  • False

Question 11

Question
Which of the following commands will display only lines that begin with start?
Answer
  • grep *start file.txt
  • grep $start file.txt
  • grep start file.txt
  • grep ^start file.txt

Question 12

Question
Which of the following commands will display only lines that begin with test?
Answer
  • grep ^test file.txt
  • grep $test* file.txt
  • grep *test file.txt
  • grep &test file.txt

Question 13

Question
Which of the following commands will display lines that contain either start or end?
Answer
  • egrep start end file.txt
  • egrep ‘start|end’ file.txt
  • egrep start&end file.txt
  • egrep (start|end) file.txt

Question 14

Question
Which of the following commands can be used to scroll through a text file?
Answer
  • some
  • less
  • cat
  • more

Question 15

Question
The find command can search for files based on the size of the file.
Answer
  • True
  • False

Question 16

Question
Which of the following commands scans the file to determine file locations?
Answer
  • search
  • locate
  • where
  • find

Question 17

Question
Which option for the cut command is used to specify a delimiter?
Answer
  • -f
  • -d
  • =
  • -D

Question 18

Question
Which option for the cut command is used to specify the field?
Answer
  • -D
  • -f
  • -d
  • #

Question 19

Question
Which option for the wc command will print the number of lines in a file?
Answer
  • -l
  • -w
  • -C
  • -L

Question 20

Question
Which option for the wc command will print the total number of words in a file?
Answer
  • -l
  • -L
  • -C
  • -w

Question 21

Question
Which command can be used to print line numbers?
Answer
  • num
  • sort
  • ln
  • nl

Question 22

Question
The command echo “text” > file.txt will create file.txt if it does not already exist.
Answer
  • True
  • False

Question 23

Question
The command echo “text” > file.txt will not overwrite file.txt if it already exists.
Answer
  • True
  • False

Question 24

Question
The command echo “text” >> file.txt will not overwrite file.txt if it already exists.
Answer
  • True
  • False
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