replace a line with two

Shell Programming and Scripting
1

I'm looking for a way to replace a line with two ... give an example

grep -in "stop)" /etc/init.d/drbd

I issue the following output:

178:    stop)

now I need to replace this line with two.

stop)
vgchange -an

sed I did not understand how, or if you can do, although I think so ...
enlighten me know about it?

thanks

2

It's not tested...but could give a try..

sed 's/stop\)/&\nvgchange -an/' /etc/init.d/drbd > outfile
3

the brackets should not be commented out, so I completed my purpose

sed -i.bak -e 's/stop)/&\n\tvgchange -an/' /etc/init.d/drbd

it's the output

    stop)
        vgchange -an

thanks thanks again!!!!!!