There are at least five syntactical mistakes in this program

There are at least five syntactical mistakes in this program. Locate them. (Specify the mistake and its line number. Line numbers are shown on left.)

1 ppprunning yes 2 while Sppprunning yes do 3 echo INTERNET MENUVn 4 1. Dial out 5 2. Exit Choice 7 read choice case choice in 9 1) if -z \"Sppprunning 1 10 echo \"Enter your username and password 11 else 12 Chat sh 13 endif 14 ppprunning-no 15 end case 16 done

Solution

There are 8 mistakes in the given code.

1. Line 1 - Spaces not permitted around =.

2. Line 2 - test operators [] missing in while’s control command.

3. Line 6 - quotes not closed with echo.

4. Line 8 - $ missing in choice.

5. Line 9 - ; is missing.

6. Line 13 - fi required instead of endif.

7. Line 13 - ;; is required instead of ;

8. Line 15 - esac required instead of endcase.

The correct code is shown as below.

ppprunning=yes

while [ $ppprunning = yes ] ; do

echo -e “ Internet Menu\

1. Dial out

2. Exit

Choice:”

read choice

case $choice in

1) if [ -x “$ppprunning” ] ; then

echo “Enter your username and password”

else

chat.sh

fi ;;

*) ppprunning=no

esac

done