Linux: Adding Numbers in a File

Here's a Linux command to add numbers inside a file:


[root@myserver misc]# cat num.test
1
2
3
4
5


This is a sample file with only 5 lines. Think of a file with millions of lines. Either you can do with MS - Excel, which may hang(!!) or use Linux command - 'awk'- which is powerful and easier:

[root@myserver misc]# awk '{s+=$1} END {print s}' num.test
15

As simple as that..!!