Hi all. Here's what i want to do:
my_first_file
#!/usr/bin/ksh
# BLA BLA BLA BLA
printf "this is my first file \n"
echo " I understand this far"

printf "the day's over \n"
echo "great"

my_second_file
#!/usr/bin/ksh
# BLA BLA BLA BLA
printf "this is my first file \n"
AN_INSERTED_LINE
"blank line"
echo " I understand this far"

printf "the day's over \n"
THE_SAME_INSERTED_LINE
"blank line"
echo "great"



How am i supposed to do to insert the INSERTED_LINE and a blank line between the printf and the echo statement?

Thanx for help