CODEWITHSUNDEEP
bash
austinminn
austinminn

Reputation: 125

Easy Linux Bash Script

I know this is probably really easy and I am just putting to much thought into it but I need to create a Bash script that will convert Celsius to Fahrenheit with this equation: f = (9/5)c+32

How would I do this? Using just expr doesn't work because it won't use floating point. How do I do this equation? Using bc?

Upvotes: 3

Views: 3190

Answers (4)

Michael Krelin - hacker
Michael Krelin - hacker

Reputation: 143081

This would be the easiest, I believe:

echo $(($c*9/5+32))

(and yes, floating point will be lost, you may add a couple of zeros and work on the string, tho).

Upvotes: 1

Cédric Julien
Cédric Julien

Reputation: 80761

If you want to use bc try this :

echo "9*$c/5+32" | bc -l

Upvotes: 3

John Zwinck
John Zwinck

Reputation: 249133

xdg-open "http://www.google.com/search?q=${TEMP}+C+in+F"

Too silly? Check out http://www.linuxjournal.com/content/floating-point-math-bash

Upvotes: 0

thiton
thiton

Reputation: 36049

You (normally) don't need floating point arithmetic for this to work, if rounding errors are not critical and you don't need floating-point precision:

expr 9 '*' $c / 5 + 32

Upvotes: 1

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