UNIX for Dummies Questions & Answers

my file looks like this:
101928 101943
101928 101944
101929 101943
101929 101943
101929 102044

i want to insert bc to get answer like this:

101928 101943 000015
101928 101944 000016
101929 101943 000013
101929 101943 000014
101929 102044 000115

total 000173

my way:
create two files (col2.txt and col2.txt)

cat col2.txt | while read col2
do
cat col1.txt | while read col1
do
echo $col2 - $col1 | bc > total.txt

done
done

must be a short version of it.

i searched thru unix.com and i found this syntax:

awk -F" " 'BEGIN {x=0} {x+=$2} END {print x}' cols

i made it work the way i want it.

thanks anyway.....

Try:

Code:

awk '{ printf("%s %06d\n", $0,$2-$1); }' filename

dj,

thanks. worked perfectly.