Guys
do you know any other command that will insert a line at particular line number...I used this one...but it is not working if the above lines are blank.

This command will put "name=cat.abc.com at 11th line.But if there is no line 10 the command is not working...

sed '10a\ name = cat.abc.com' con.txt


Really appreciate if you guys can help me out with this...alll i need is a command to put lines (append or insert) at particular line number...

Thanks alot
CK