Shell Programming and Scripting

I hate to argue with my own suggestions, but I didn't actually try looping through calls to bc when I saw the obvious typo. The rest of the shell script looked OK. What I didn't notice was that your input file has one entry that is "12K", so the bc adding the sum calculated from the previous values in the input + 12K fails and the remaining calls to bc also fail. It wasn't noticed when running the awk script because awk ignore non-numeric trailing characters with performing arithmetic operations on variables contain string values that start with decimal digit string (including an optional <period>).

So you need to fix your input to get correct results if you use any of the suggestions using bc. (And if "12K" wasn't supposed to be "12", you get the wrong result from awk as well.)

Assuming the list only contains numbers (not the '12K' currently there which you haven't said how to interpret) you could do it in ksh93 like this:

Code:

set $(<b22)
s=0
for i; do ((s += $i)); done
echo $s