How get numbers and sum them in bash shell script?

Question

I have an input file like this:

bread,5
water,15
butter,5

I want to write a script which will get the numbers from each line after the comma and add them. So the example output must be: 25

Avinash Raj · Accepted Answer · 2015-11-20 04:08:05Z

2

Use awk,

$ awk -F, '{c+=$2}END{print c}' file
25

Here -F, we are setting the Field Separator as comma. {c+=$2} would add every num exists on the second column to a variable called c . c+=$2 is equal to c = c + $2. At the last c contains the total sum of all the numbers exists on the second column. Printing c in the END block will give the final value of c variable.

edited Nov 20, 2015 at 4:08

answered Nov 19, 2015 at 9:17

Avinash Raj

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2 Comments

Business Man Over a year ago

It works well, thank you! Could you explain this line for me please? c is a variable which store the price, the file should be the parameter file it is clear but how this code split by comma?

balabhi Over a year ago

The -F option, "-F," indicates that the field separator is ","

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