calculating sum of fields in a file

Shell Programming and Scripting
1

Hey,

I have a file and it has only one field. I need to calculate the sum of each filed as total.

For e.g my file is
1
2
3
4
5

I need to calculate the total sum as 15.

Please let me know how i can do it?

2 
awk '{total+=$0}END{print total}' file

Regards

3 
nawk '{ sum = sum + $0 } END { print sum }' file
4

assuming input file is as stated

# echo `tr '\n' '+' < file`0 | bc
15
5

Another one:

echo $(($(paste -sd+ file)))

Use ksh93 (/usr/dt/bin/dtksh on Solaris) or zsh for floating-point arithmetic.