Perform basic file management

Question 1

How are hidden files named?

Answer 1

Begin with a dot

Question 2

What shorthand refers to the present directory?

Answer 2

.

Question 3

What shorthand refers to the parent directory?

Answer 3

..

Question 4

What wildcard represents a single character in a filename?

Answer 4

?

Question 5

What wildcard matches any sequence of characters om a filename?

Answer 5

*

Question 6

What notifies matching any character in a set for wildcards in a filename?

Answer 6

[a-z]

Question 7

What command will list hidden files and directories?

Answer 7

ls -a

Question 8

What command will show the file types in a listing?

Answer 8

ls -F –file-type

Question 9

What command will show files recursively?

Answer 9

ls -R –recursive

Question 10

What command will copy a file?

Answer 10

cp

Question 11

What command will move a file?

Answer 11

mv

Question 12

What command will delete a file?

Answer 12

rm

Question 13

What command is used to create files and or set the modification / access times?

Answer 13

touch

Question 14

What utility creates a zipped archive and is based on tape archives?

Answer 14

tar

Question 15

What utility creates an archive based on Copy-out and Copy-in mode?

Answer 15

cpio

Question 16

What command will copy partitions?

Answer 16

dd

Question 17

What command will create a directory?

Answer 17

mkdir

Question 18

What command will delete a directory?

Answer 18

rmdir

Question 19

What command changes the owner of a file?

Answer 19

chown

Question 20

What command changes the group for a file?

Answer 20

chgrp

Question 21

What is meant by file type code - ?

Answer 21

file

Question 22

What is meant by file type code d ?

Answer 22

directory

Question 23

What is meant by file type code p ?

Answer 23

named pipe - two programs use the file to communicate

Question 24

What is meant by file type code s ?

Answer 24

socket - similar to pipe with networking

Question 25

What is meant by file type code b ?

Answer 25

block device - hard disk, cd, ram etc

Question 26

What is meant by file type code c ?

Answer 26

character device - hardware device that has data transfered to and from one byte at a time

Question 27

What represents the file octal code 7?

Answer 27

rwx

Question 28

What represents the file octal code 6?

Answer 28

rw-

Question 29

What represents the file octal code 5

Answer 29

r-x

Question 30

What represents the file octal code 4

Answer 30

r--

Question 31

What represents the file octal code 0

Answer 31

---

Question 32

What does the SUID (Set user ID) do?

Answer 32

Runs a program for all users with the permissions of the owner.

Question 33

What does the SGID (Set group ID) do?

Answer 33

Runs a program for all users with the permissions of the owner group.

Question 34

How is the special bit represented?

Answer 34

s

Question 35

What does the sticky bit do?

Answer 35

Prevents deletion of files by anyone except the owner.

Question 36

What does chmod do?

Answer 36

Changes premissions on a file

Question 37

How are the SUID, SGID and sticky bit set?

Answer 37

Extra digit in front of the permission digits

Question 38

What is the numeric code for SUID?

Answer 38

4

Question 39

What is the numeric code for SGID?

Answer 39

2

Question 40

What is the numeric code for the sticky bit?

Answer 40

1

Question 41

What is the symbolic mode set code of owner?

Answer 41

u

Question 42

What is the symbolic mode set code of group?

Answer 42

g

Question 43

What is the symbolic mode set code of world?

Answer 43

o

Question 44

What is the symbolic mode set code of all?

Answer 44

a

Question 45

What is the difference between symbolic mode world (o) and all (a)?

Answer 45

world means all those not owner or group, all means owner, group and world.

Question 46

What would the command chmod o=rwx do?

Answer 46

Change the permissions for world on the file

Question 47

Who are the only users who can change a file's permissions?

Answer 47

Owner and root

Question 48

What command sets the default permissions for a created file?

Answer 48

umask

Question 49

What command will change the attribute of a file?

Answer 49

chattr

Question 50

What are wildcards called when used as part of a search?

Answer 50

globbing

Question 51

What command could be used to compress a file?

Answer 51

gzip or bzip2

Question 52

What gzip command is used to uncompress files?

Answer 52

gunzip

Question 53

What rm, cp or mv option will attempt to move a file even if its not writeable?

Answer 53

-f --force

Question 54

What rm, cp or mv option will ask for confirmation?

Answer 54

-i --interactive

Question 55

What cp or mv option will make a backup of any files that would be replaced?

Answer 55

-b --backup

Question 56

What mkdir option would make the parent directories in this command - mkdir d1/d2/d3

Answer 56

-p

Question 57

What is the important prerequisite of rmdir?

Answer 57

The directory must be empty for deletion.

Question 58

What ls command will list all child directories and their contents?

Answer 58

ls -R

Question 59

What command will delete a directory and its contents?

Answer 59

rm -r -R --recursive

Question 60

What is another name for file wildcard naming?

Answer 60

globbing

Question 61

What command will put a current or any timestamp timestamp on a file's atttibutes?

Answer 61

touch

Question 62

With file access attributes what is meant by the mtime?

Answer 62

Modification time

Question 63

With file access attributes what is meant by the atime?

Answer 63

Access time

Question 64

What command is used to determine the type of file?

Answer 64

file

Question 65

What does the tar option f do?

Answer 65

Where the tarball should be placed?

Question 66

What does the tar option v do?

Answer 66

verbose output

Question 67

What does the tar option c do?

Answer 67

create a tarball

Question 68

What does the tar option x do?

Answer 68

extract an archive

Question 69

What does the tar option z do?

Answer 69

use gzip

Question 70

What does the tar option j do?

Answer 70

use bzip2

Question 71

What does the cpio copy-out mode do?

Answer 71

Creates an archive

Question 72

What does the cpio copy-in mode do?

Answer 72

Restores an archive

Question 73

What does the cpio copy-pass mode do?

Answer 73

Copies files from one location to another

Question 74

What cpio switches are used for copy-out mode?

Answer 74

-o --create

Question 75

What cpio switches are used for copy-in mode?

Answer 75

-i --extract

Question 76

What cpio switches are used for copy-pass mode?

Answer 76

-p --pass-through

Question 77

With dd what does if stand for?

Answer 77

Input file

Question 78

With dd what does of stand for?

Answer 78

Output file