calculating sum of fields in a file

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# 1  
Old 01-03-2008
calculating sum of fields in a file


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

I need to calculate the total sum as 15.

Please let me know how i can do it?
# 2  
Old 01-03-2008
awk '{total+=$0}END{print total}' file

# 3  
Old 01-03-2008
nawk '{ sum = sum + $0 } END { print sum }' file

# 4  
Old 01-03-2008
assuming input file is as stated
# echo `tr '\n' '+' < file`0 | bc

# 5  
Old 01-03-2008
Another one:

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

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