OSA:Pracical 5

#!/bin/bash
while true
do
echo "-----MENU------"
echo "1. Process Status"
echo "2. Nice Value" 
echo "3. Renice Value"
echo "4. Global Priority"
echo "5. Exit"
read ch
case $ch in
1) echo "Process status are"
ps -al
;;
2) echo "Enter the nice value"
read n1
echo "Enter the command"
read cmd 
echo "Nice value is"
nice -$n1 $cmd &
ps -al
;;
3) ps -al
echo "Enter PID"
read p1 
echo "Enter the renice value"
read rv
echo "Renice value is"
renice +$rv $p1
ps -al
;;
4) echo "Global Priority"
ps -ecl
;;
5) exit
;;
*) echo "Invalid choice"
;;
esac done

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