Special Characters

Question 1

|

Answer 1

pipe

Question 2

|

Answer 2

pipe

Question 3

;

Answer 3

causes sequential execution of commands

Question 4

&

Answer 4

puts a command in the background

Question 5

( )

Answer 5

delimits group command, sub-shell is created

Question 6

{ }

Answer 6

delimits group command, in current shell

Question 7

>

Answer 7

redirect standard output

Question 8

#

Answer 8

starts a comment

Question 9

*

Answer 9

matches zero or more characters

Question 10

?

Answer 10

matches one character

Question 11

[ ]

Answer 11

matches character set

Question 12

$

Answer 12

causes parameter value substitution (call a variable)

Question 13

’

Answer 13

quotes every character except a ‘

Question 14

\

Answer 14

quotes a single character

Question 15

”

Answer 15

quotes every character except $ ` \ “

Question 16

`

Answer 16

turns a commands output into a string

Question 17

;

Answer 17

causes sequential execution of commands

Question 18

&

Answer 18

puts a command in the background

Question 19

( )

Answer 19

delimits group command, sub-shell is created

Question 20

{ }

Answer 20

delimits group command, in current shell

Answer 21

redirect standard input

Question 22

>

Answer 22

redirect standard output

Question 23

#

Answer 23

starts a comment

Question 24

*

Answer 24

matches zero or more characters

Question 25

?

Answer 25

matches one character

Question 26

[ ]

Answer 26

matches character set

Question 27

$

Answer 27

causes parameter value substitution (call a variable)

Question 28

'

Answer 28

quotes every character except a '

Question 29

\

Answer 29

quotes a single character

Question 30

"

Answer 30

quotes every character except $ ` \ "

Question 31

`

Answer 31

turns a commands output into a string