Feb 122010
Sum of every lines' value in a file
Answer:
Assume you have a file num.txt
1
2
3
4
5
How do you calculate the sum of every lines' value in a file?
Use Perl!
# perl -lne '$x += $_; END { print $x; }' < num.txt
15
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Sum of every lines' value in a file
Answer:
Assume you have a file num.txt
1
2
3
4
5
How do you calculate the sum of every lines' value in a file?
Use Perl!
# perl -lne '$x += $_; END { print $x; }' < num.txt
15
