Awk expert's help needed (how to edit a text file?)

[Hanif Kazemi]

I forgot to mention:

in line 18 and after, only add the phrase (" /work/" to the beginning of the line if the line contains the phrase "htm".

[harry d brown jr]

VERY SIMPLE using ex:

ex file <1,17d f
g/htm/s/^/work/
0pu f
wq
EOS

live free or die
harry d brown jr

[Hanif Kazemi]

Do you think I can do it with AWK?

I don't have a choice.

[Rodney Hills]

awk '/htm/{if (NR >= 18) { print "/work/" $0} else { print $0}}' yourfile >resultfile

HTH

-- Rod Hills

PS - even small points to previous posts is a way to acknowledge the effort by the poster.

[Francisco J. Soler]

Hi Hanif,
my solution:

awk '{if (NR>=18 && match($0,"htm")) print "/work/" $0; else print}'

Best regards.
Frank.

P.D I think the last reply by Rodney Hills does not work properly because the awk script only prints lines with /htm/ pattern and does not print lines without this pattern.