bash variables

August 06, 2022 by aAshish

In bash, you can assign a value to a variable as simply as:

variable_name=variable_value

Note: If you assign a new value to a variable that you have used before, it will

overwrite your previous value. 

e.g.

a=100

b='hello, world'

c=true

d=0.75

You can refer to any of these variables by typing a $ sign and the variable name itself. 

e.g:

echo $a 

Prints 100.

 

echo $b
Prints hello, world. 

echo $c 

Prints true. 

echo $d 

Prints 0.75.