append a line

Hi

I have a line in a file and want to append it with another word

for example

search dk.siroe.com

want to append it.siroe.com

search dk.siroe.com it.siroe.com

any idea?

thx

Are those entries the only things in either/both files?
Or, how will you be specifying the append string?

sed 's/search dk.siroe.com/& it.siroe.com/' somefile > newfile 
mv newfile somefile

check the sed output first