cut and paste for vi

--For Solaris, AIX , HP-UX platform

shift + v    # for copy to clipboard
dd             # delete the line
p               # paste



--For Linux platform

shift + v
d            # delete the line, slightly different with Solaris
p

Ref: http://stackoverflow.com/questions/8773299/how-to-cut-an-entire-line-in-vim-and-paste-it