#!/bin/ksh
#
#SCRIPT: backupk script


#####################################
# PATH Declaration
MOUNT=/bin/mount
UMOUNT=/bin/umount
#####################################


#####################################
#Function Declaration

#Function for taking Local Backup
GetPathLocal ( ) { echo "Enter the Destination Directory[ ]:"
echo "No Default,Enter absolute path"
read DEST_PATH
  CreateArch
}

#Function for taking Remote Backup
GetPathRemote ( ) { echo "\nEnter the Remote Machine IP Address[No Default]:\c "
read DEST_IP

echo "\nEnter the Remote Directory to be mounted[no default ]:\c"

read REMOTE_DIR

ISMOUNTED=`$MOUNT | grep "/mntback"`
if [ "$ISMOUNTED" = "" ]
then
  if [ -d /mntback ]
  then 
  echo `$MOUNT $DEST_IP:$REMOTE_DIR /mntback`
  else
  mkdir /mntback
  echo `$MOUNT $DEST_IP:$REMOTE_DIR /mntback`
  fi
fi

echo "\nEnter the Destination Directory Name[No default]:\c"
read DEST_NAME
DEST_PATH=/mntback/$DEST_NAME

CreateArch
$UMOUNT /mntback

}

#Function Performing Backup
CreateArch ( ) { if [ -d $SOUR_PATH ]
    then
    if [ ! -d $DEST_PATH ]
    then
     echo "Destination Directory does not exist.Creating..."
     mkdir $DEST_PATH
    fi 
    ls -1F $SOUR_PATH | grep / |awk -F/ '{print $1}' - > /tmp/user
  
    cd $SOUR_PATH
   
    for i in `cat /tmp/user`
  do
  #tar  cvfp - $i | gzip > $DEST_PATH/$i.tar.gz
  tar cvfpBz  $DEST_PATH/$i.tar.gz  $i  # taking tar & zipping
done
    GenerateReadme

    else
echo "\nError: Source not a directory
EXITING BACKUP"
exit 1
    fi



rm /tmp/user

}
#Function to Generate Readme file after backup is completed
GenerateReadme ( ) { README=$DEST_PATH/readme
echo "
***************************************************
               BACKUP  README    
***************************************************

        1. FileSystem Name(Source):     $SOUR_PATH    
        2. Date of Creation:            `date`
        3. Machine used for backup:     `hostname`   
        4. Destination(IP Address):     $DEST_IP     
        5. Destination(Path):           $REMOTE_DIR/$DEST_NAME " >$README

}

######################################
#######  BEGINNING OF MAIN ###########
######################################

echo  "\
**********************************************************
*                                                        *
*                        BACKUP UTILITY           *
*                                                        *
**********************************************************
  \n
Enter \"e\" to EXIT or \"c\" to CONTINUE [no default]: \c"
read ANSW

case $ANSW in
   c|C)
   echo "\nEnter the source Directory(Full Path)[ ]: \c"
        
         read SOUR_PATH

   echo "\nDestination  Kind:\n
          Local  [1]
          Remote [2]
         
Enter your choice [no default]: \c"
         
        read DEST_KIND
        
         case $DEST_KIND in
         1)
         GetPathLocal
         ;;
         2)
         GetPathRemote
         ;;
         *)
         echo "\n
     No other option
***** BACKUP Exit *****"
         exit 0
         ;;
        esac
    ;;   
   e|E)
    exit 0
    ;;
   *)
    echo "\n
No other option
***** BACKUP Exit *****"
    exit 0
    ;;
esac