colo1.sh

#!/bin/bash
#Author: Poorvak Kapoor

#Assigning color to the screens
BG_BLUE="$(tput setab 4)"
BG_BLACK="$(tput setab 0)"
FG_GREEN="$(tput setaf 2)"
FG_WHITE="$(tput setaf 7)"

#Save screen
tput smcup

#display menu until selection == 0
while [[ $REPLY != 0 ]]; do
  echo -n ${BG_BLUE}${FG_WHITE}
  clear
  cat <<- _EOF_
    Please Select:
    
    1. Display Hostname and Uptime
    2. Display Disk Space
    3. Display Home Space Utilization
    0. Quit

_EOF_

  read -p "Enter select [0-4]" selection

  #Clear area beneath menu
  tput cup 10 0
  echo -n ${BG_BLACK}${FG_GREEN}
  tput ed
  tput cup 11 0

  case $selection in 
    1) echo "Hostname: $HOSTNAME"
       uptime
       ;;
    2) df -h
       ;;
    3) if [[ $(id -u) -eq 0 ]]; then
         echo "Home space utilization (All users)"
         du -sh /home/* 2> /dev/null
       else
         echo "Home Space utilization ($USER)"
         du -s $HOME/* 2> /dev/null | sort -nr
       fi
       ;;
    0) break
       ;;
    *) echo "Invalid entry"
       ;;
  esac
  printf "\n\nPress any key to continue"
  read -n 1
done

#Restore screen
tput rmcup
echo "Program terminated"