how to append blank line in multiple files in unix

Shell Programming and Scripting
1

Dear All-

Please suggest a single unix command which can append blank line in multiple files.

I need to achieve this using a single unix command and not a script

Please do advice

Regards,
Suresh

2

Same question?
http://www.unix.com/shell-programming-scripting/158900-appending-blank-line-group-files-end.html

3

thx for reply, this thread can be closed