Shell script command

Can any one tell me how can i delete all the content

of a file at one go using Vi editor ???

It's urgent

Few ways actually...

I would go with this one for vi

Inside vi, issue these

:1
dG
:w

It has worked Thanx a lot

or simply:

:%d
:w

or simply

d <Shift g>

That would be under the assumption that the cursor is at line 1.

you could also empty the file out before starting vi ...

echo > /dir/file; vi /dir/file

or simply

$ > /dir/file; vi /dir/file