Shell single quotes and double quotes

#!/bin/bash

a=23

echo '$a'

echo "$a"



your_name='runoob'

str="Hello, I know you are \"$your_name\ "! \n"

echo -e $str

echo $str

Output

bogon:Desktop macname$ ./test.sh

$a

23

Hello, I know you are "runoob"!



Hello, I know you are "runoob"! \n

Reference:

< p>https://www.runoob.com/linux/linux-shell-variable.html

#!/bin/bash

a=23

echo '$a'

echo "$a"



your_name='runoob'

str="Hello, I know you are \"$your_name\ "! \n"

echo -e $str

echo $str

bogon:Desktop macname$ ./test.sh

$a

23

Hello, I know you are "runoob"!



Hello, I know you are "runoob"! \n