PR(04): Create a program for display list of active processes, display the information of Process, Display the global priority of the process, Change the priority of process, & kill the process.

while true

do

                echo "1.Display active process in shell.";

                echo "2.Display information about process";

                echo "3.Display the Global priority of process";

                echo "4.Change the priority of process.";

                echo "5.kill the process";

                echo "6.Exit.";

                echo "Enter your choice";

                read ch;

                case $ch in

                1)

                                ps

                                ;;

                2)

                                ps -ef

                                ;;

                3)

                                ps -axl | more

                                ;;

                4)

                echo "Enter the pid of open process";

                read pid

                ps -axl | grep $pid

                echo "Enter the prioity for the process";

                read pr

                renice $pr $pid

                ;;

                5)

                echo "Enter the pid  to kill process";

                read pid

                kill $pid

                ;;

                6)

                exit

                ;;

esac

done