How do you multiply two numbers in Unix?

How do you multiply numbers in Unix?

Shell script for multiplication of two numbers

  1. initialize two variables.
  2. multiply two numbers directly using $(…) or by using external program expr.
  3. Echo the final result.

How do you do multiplication in bash?

The Bash shell has a large list of supported arithmetic operators to do math calculations.



What are the Bash Arithmetic Operators?

Arithmetic Operator Description
*, /, % multiplication, division, remainder (modulo)
+, – addition, subtraction

What is the command to multiply two numbers give an example?

Program to Multiply Two Numbers



printf(“Enter two numbers: “); scanf(“%lf %lf”, &a, &b); Then, the product of a and b is evaluated and the result is stored in product . product = a * b; Finally, product is displayed on the screen using printf() .

How do you multiply two numbers in a shell?

The following is the shell script to multiply two numbers:

  1. echo enter a and b.
  2. read a b.
  3. c=`expr $a * $b`
  4. echo $c.

How do you calculate in Unix?

Linux or Unix operating system provides the bc command and expr command for doing arithmetic calculations. You can use these commands in bash or shell script also for evaluating arithmetic expressions.

How do you calculate on Linux?

5 Useful Ways to Do Arithmetic in Linux Terminal

  1. Using Bash Shell. The first and easiest way do basic math on the Linux CLI is a using double parenthesis. …
  2. Using expr Command. …
  3. Using bc Command. …
  4. Using Awk Command. …
  5. Using factor Command.

How do you add on Linux?

Use the following syntax to calculate the sum of two integers in a shell script:

  1. Using expr command with quotes sum=`expr $num1 + $num2`
  2. Use expr command inclosed with brackets and start with dollar symbol. sum=$(expr $num1 + $num2)
  3. This is my preferred way to directly with the shell. sum=$(($num1 + $num2))

How do you add two variables in shell?

How to add two variables in shell script

  1. initialize two variables.
  2. Add two variables directly using $(…) or by using external program expr.
  3. Echo the final result.

What is BC in bash script?

BC, which stands for Basic Calculator, is a command in Bash that is used to provide the functionality of a scientific calculator within a Bash script.

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