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dialog

dialog1.png

selection.sh

#!/bin/bash
# while-menu-dialog: a menu driven system information program

DIALOG_CANCEL=1
DIALOG_ESC=255
HEIGHT=0
WIDTH=0

display_result() {
  dialog --title "$1" \
    --no-collapse \
    --msgbox "$result" 0 0
}

while true; do
  exec 3>&1
  selection=$(dialog \
    --backtitle "System Information" \
    --title "Menu" \
    --clear \
    --cancel-label "Exit" \
    --menu "Please select:" $HEIGHT $WIDTH 4 \
    "1" "Display System Information" \
    "2" "Display Disk Space" \
    "3" "Display Home Space Utilization" \
    2>&1 1>&3)
  exit_status=$?
  exec 3>&-
  case $exit_status in
    $DIALOG_CANCEL)
      clear
      echo "Program terminated."
      exit
      ;;
    $DIALOG_ESC)
      clear
      echo "Program aborted." >&2
      exit 1
      ;;
  esac
  case $selection in
    0 )
      clear
      echo "Program terminated."
      ;;
    1 )
      result=$(echo "Hostname: $HOSTNAME"; uptime)
      display_result "System Information"
      ;;
    2 )
      result=$(df -h)
      display_result "Disk Space"
      ;;
    3 )
      if [[ $(id -u) -eq 0 ]]; then
        result=$(du -sh /home/* 2> /dev/null)
        display_result "Home Space Utilization (All Users)"
      else
        result=$(du -sh $HOME 2> /dev/null)
        display_result "Home Space Utilization ($USER)"
      fi
      ;;
  esac
done

zenity

zenity.webp

who_is.sh

#!/bin/bash
# Get domain name
_zenity="/usr/bin/zenity"
_out="/tmp/whois.output.$$"
domain=$(${_zenity} --title  "Enter domain" \
	            --entry --text "Enter the domain you would like to see whois info" )
 
if [ $? -eq 0 ]
then
  # Display a progress dialog while searching whois database
  whois $domain  | tee >(${_zenity} --width=200 --height=100 \
  				    --title="whois" --progress \
			            --pulsate --text="Searching domain info..." \
                                    --auto-kill --auto-close \
                                    --percentage=10) >${_out}
 
  # Display back output
  ${_zenity} --width=800 --height=600  \
	     --title "Whois info for $domain" \
	     --text-info --filename="${_out}"
else
  ${_zenity} --error \
	     --text="No input provided"
fi

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