Need the SED command syntax......

Hi,

Assuming that I have a file with 20 lines and all 20 lines carrying different texts in them, I want to find one particular line. Once I find that line I want to enter a new line after that.

Can anyone help me out in giving the sed command forthe same ?

Thanks in advance.

Rgds,
-Vaidu

you have theses lines

one
two
three

you want to enter new line after 2

you need something like this

<enter line range here>s/<regular expression>/<regular expression>^M/g

as in
:%:s/two/two^M/g

for ^M type control-v then <enter> this will substitute the code for the new line.