We Engineers are well trained in Cut, Copy and Paste things :-) and who the hell don't know the Ctrl-X, C n V. But when we come to same but in Linux Platform we are behaving like dumb ;P. Don't feel offended...I'll help u here
So Lets learn some command which can do the same in Linux VI editor --
Cut - Ctrl-X
The command 'dd' is used for cutting text. Cutting current word, lines or many more summarized below -
dd Delete current line D Delete from cursor to end of line
d$ Delete from cursor to end of line
d0 Delete from cursor to beginning of line
dw Delete from cursor to end of current word
db Delete from cursor to beginning of current word
Ndd Delete N no of lines including current line