For example i have a file named 1.txt which contains:
Windows 7
Windows 8
Windows 8.1
Windows 10
and 2.txt which contains:
2009
2012
2012
2014
and I want to echo 2.txt into 1.txt like this:
Windows 7 2009
Windows 8 2012
Windows 8.1 2012
Windows 10 2014
How can I make it happen?