#!/bin/sh
# Backup all files under home directory to a single # floppy
# Display message with option to cancel
dialog --title "Backup" --msgbox "Time for backup \ of home directory. \
Insert formatted 3-1/2\" floppy and press <Enter> \ to start backup or \
<Esc> to cancel." 10 50
# Return status of non-zero indicates cancel
if [ "$?" != "0" ]
then
  dialog --title "Backup" --msgbox "Backup was \ canceled at your
    request." 10 50
    else
      dialog --title "Backup" --infobox "Backup in \ process..." 10 50
        cd ~
          # Backup using tar; redirect any errors to a
            # temporary file
              # For multi-disk support, you can use the
                # -M option to tar
                  tar -czf /dev/fd1 . >|/tmp/ERRORS$$ 2>&1
                    # zero status indicates backup was successful
                      if [ "$?" = "0" ]
                          then
                              dialog --title "Backup" --msgbox "Backup \
                              completed successfully." 10 50
                                  # Mark script with current date and time
                                      touch ~/.backup
                                        else
                                            # Backup failed, display error log
                                                dialog --title "Backup" --msgbox "Backup failed \ -- Press
                                                <Enter>
                                                    to see error log." 10 50
                                                       dialog --title "Error Log" --textbox /tmp/ERRORS$$ 22 72
                                                         fi
                                                         fi
                                                         rm -f /tmp/ERRORS$$
                                                         clear