Linux BC calculator multiple variables must be read or seen by Bash

BudiKusasi · 09-22-2021, 05:29 PM

How can linux BC calculator multiple variables, not just one obtain by command substitution, be recognized or seen by Bash

wpeckham · 09-22-2021, 05:52 PM

Quote:

Originally Posted by BudiKusasi

How can linux BC calculator multiple variables, not just one obtain by command substitution, be recognized or seen by Bash

My thought is that your first language may not be english. Can you explain in more detail what exactly you mean?

computersavvy · 09-22-2021, 05:57 PM

A little more info would be nice.

What are you doing that needs bc?
How many variables are you talking about?
What is to be done with the variables content?
Why cannot everything be done within a script that uses the variables?

Your incomplete info makes an answer impossible.

There are only 2 ways to use variable values. They either must be used within their scope within a script/program or they must be saved to a file that can be read by another program/script.

michaelk · 09-22-2021, 06:00 PM

I'm not exactly sure what the OP is asking either but will take a guess...

Code:

#!/bin/bash
x=2
y=3

result=$(echo "$x*$y" | bc)
echo "$x * $y = $result"