Deck 3: Exploring Linux Filesystems

Question 1

Using wildcard metacharacters, how can one indicate a number is either 1, 2, 3, or 4?

A) 1-4
B) [1-4]
C) [1234]
D) [1,2,3,4]

Answer 1

B

Question 2

Which of the following key combinations, commonly used in the vi editor command mode, displays current line statistics?

A) $
B) x
C) Ctrl+g
D) P

Answer 2

C

Question 3

To display the contents of a text file called data, what command should be used?

A) disp data
B) ls data
C) ls -l data
D) cat data

Answer 3

D

Question 4

When issuing the ls -F command, what special character indicates a linked file?

A) @
B) *
C) &
D) =

Question 5

Which character(s) below represent extended regular expression metacharacter(s)?

A) .
B) [...]
C) ^
D) {}

Question 6

Linux uses a logical directory tree to organize files into different folders.

Question 7

Pressing the Esc key at the prompt while using the more command displays a help screen.

Question 8

What command can be issued to confirm what directory you are in at a command line prompt?

A) dir
B) pwd
C) whereami
D) ld

Question 9

To display a text file in reverse order, what command should be used?​

A) ​cat
B) ​tac
C) ​tee
D) ​sed

Question 10

What command can be used to display the last five lines of a text file?

A) end -5
B) head -5
C) stop -5
D) tail -5

Question 11

In order to move from the /home/joe/test/data to the /home/joe directory, what command below should be issued?

A) cd ..
B) cd ../..
C) /home/joe
D) cd ./..

Question 12

If enough unique letters of a directory name have been typed, what key can be pressed to activate the BASH shell's completion feature?

A) Alt
B) Tab
C) Ctrl
D) Esc

Question 13

It is acceptable to use shell metacharacters when naming files.

Question 14

Which switch below can be added to the ls command to show a list of files and their type?

A) -T
B) -L
C) -F
D) -l

Question 15

What metacharacter can be used to refer to the current user's home directory?

A) ˜
B) @
C) &
D) #

Question 16

The command strings /bin/echo displays the raw binary characters inside the /bin/echo binary executable program.

Question 17

The LISP artificial intelligence programming language can be used with which text editor below?

A) Kedit editor
B) Joe editor
C) Emacs editor
D) Nedit editor

Question 18

The more command should not be used on binary files.

Question 19

Select the command below that can be used to provide a long listing for each file in a directory:

A) ls -T
B) ls -L
C) ls -F
D) ls -l

Question 20

Select the regular expression metacharacter that matches 0 or more occurrences of the previous character.

A) *
B) ?
C) +
D) ^

Question 21

Explain the difference between an absolute and a relative pathname, and why one might be used over the other.

Question 22

List at least three differences between wildcard metacharacters and regular expressions.

Question 23

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​A temporary connection that sends information from one command or process in memory to another; it can also be represented by a file on the filesystem.

Question 24

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​The files that represent the same data as other files.

Question 25

What command is most effective at identifying different types of files?​

A) stat
B) ​ls -l
C) ​ll
D) ​file

Question 26

What is the disadvantage of using the cat command to display a very large text file? How can you get around this problem?

Question 27

In a file listing, the 9 characters following the file type (for example, -rwxr-xr-x) refer to the file's _________________________.

Question 28

An alternative to the vi editor that offers an equal set of functionality is the GNU _________________________.

Question 29

Describe the difference between named pipe files and socket files.​

Question 30

Explain why the vi editor is called a bimodal editor.

Question 31

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​The full pathname to a certain file or directory starting from the root directory.

Question 32

In vi, using command mode, what ​series of key presses below will cause the line on which the cursor is on to be deleted?

A) ​X
B) ​dd
C) ​yw
D) ​d

Question 33

Text wildcards used to ease the searching of specific text information are called _________________________.

Question 34

In what mode does the vi editor open by default?​

A) ​append mode
B) ​insert mode
C) ​overview mode
D) ​command mode

Question 35

Filenames that start with a period, such as .file, are referred to as _____________ files.

Question 36

In the GNU Emacs editor, what key combination can be used to delete all characters between the cursor and the end of the line?​

A) ​dd
B) ​Ctrl+d
C) ​Ctrl+k
D) ​Ctrl+a

Question 37

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​A variant of the grep command used to search files for patterns, using extended regular expressions.

Question 38

Due to the fact that the * character can be used to match all ​characters in a filename, or all files in a directory, it is referred to as a ____________ metacharacter.

Question 39

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​A Linux command that searches files for patterns of characters using regular expression metacharacters. The command name is short for "global regular expression print."

Question 40

​At the vi command mode prompt, what key combination below will force a quit from the vi editor without saving changes?

A) ​:q
B) ​:q!
C) ​:exit
D) ​:!

Question 41

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​A file that can be executed by the Linux operating system to run in memory as a process and perform a useful function.

Question 42

Select the two ​filename extensions that are associated with C++ programming language source code files:

A) ​.c
B) ​.cc
C) ​.cpp
D) ​.c++

Question 43

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​The special metacharacters used to match patterns of text within text files; they are commonly used by text tool commands, including grep.

Question 44

What two regular expression characters can be used to match the characters at the beginning or end of a line, respectively?

A) ​.
B) ​^
C) ​$
D) ​+

Question 45

Select below the command and the associated alias available on most Linux systems that displays ​a long listing for each file in a directory?

A) ​ls -F
B) ​lf
C) ​ls -l
D) ​ll

Question 46

When displaying a large text file, what two commands provide the ability to show text in a page by page fashion?​

A) more
B) paged​
C) less
D) ​buffer

Question 47

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​The joining of text together to make one larger whole. In Linux, words and strings of text are joined together to form a displayed file.

Question 48

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
​A variant of the grep command that does not allow the use of regular expressions.

Question 49

What two characters below should not be used in filenames?​

A) ​_
B) ​.
C) ​$
D) ​*

Question 50

​Match each correct item with the statement below.​
a.​Absolute pathname
b.command mode​
c.​concatenation
d.executable program​
e.​egrep command
f.​fgrep command
g.​grep command
h.​linked file
i.​named pipe file
j.regular expressions
One of the two modes in vi; it allows a user to perform any available text-editing task that is not related to inserting text into the document.​