$/*$ print the result $*/$

printf$("$The result is of

$",$ num$1*$ num$2)$; $/*$ this does it $*/$

$/*$ does it work? $*/$

return $0$ ;

$\}$

Answer:

b$)$ Consider the following file called phone.txt containing some DFW area phone

numbers, except that the area code $($i$.$e$.,$ the first three digits$)$ are backwards and do

not include the parentheses around the area code as follows:

Write a single sed script called minor$3.$ sed that does the following:

Removes the phone number beginning with $412($i$.$e$.,$ really the number with

the $214$ area code$).$

Reverses the order of the three digits in the area code and adds the needed

parentheses around the area code.

Appends your phone number $($you can make one up if you want$)$ after the

number beginning with $718($i$.$e$.,$ the last phone number in the file$).$

In this file, for example, my sed script should print the following:

$ sed$-$r $-$f minor$3.$sed phone.txt

$(972)680-0035$

$(469)432-8492$

$(817)780-4972$

$(940)369-7055$

This sed script file will be submitted to Canvas.