#!/bin/ksh
# filename: fullbackup.sh
# description: performs a level 0 cpio backup on either Sun or HP
#              platforms.
# author:  robin manapsal, 11-23-99
# version: 1.0, revised to cpio instead of ufsdump/vxdump command

UNAME=`/usr/bin/uname -s`
SUNDEV=/dev/rmt/0mn
HPDEV=/dev/rmt/0mn
HOSTNAME=`/usr/bin/hostname`
CONTACTS="[email protected]"
FILE=/tmp/tape.status
DATE=`date '+%Y-%m-%d'`
LOGDIR=/tmp/backups/backup.log_$DATE
TEE=/bin/tee
GRAPH=/tmp/graphfile
CPIO=/bin/cpio
EXCLUDE=/sysadmin/exclude
INCLUDE=/sysadmin/include

##########################################################
#                                                                                                                #
#                                          Probe the status of the tape device              #
#                                                                                                                #
#                          Checks the size of the $FILE. If the $FILE=0 bytes     #
#                     the backup procedure is aborted.  If the $FILE>0 bytes   #
#                         the procedure is initiated until the process is                #
#                                                     completed.                                          #
#                                                                                                                #
##########################################################
echo "Probing OS and tape device"
   if [ "$UNAME"="SunOS" ]; then
       mt -f $SUNDEV status > $FILE
   elif [ "$UNAME"="HP-UX" ]; then
       mt -t $HPDEV rew > $FILE
fi

if  [ ! -s $FILE ]; then
    echo "$UNAME device is not ready"
    mailx -s "Error: Aborting backup on $HOSTNAME - tape not mounted" $CONTACTS  < /dev/null > /dev/null 2>&1
exit 0
   else
   echo "$UNAME device is ready"
   echo "Proceeding with the backup"
fi

##########################################################
#                                                                                                                #
#                                                 Collecting files for backup                      #
#                                                                                                                #
##########################################################
echo "Collecting graphfile"
if [ ! -f $GRAPH ]; then
   echo "$GRAPH does not exist"
   find / -fstype ufs > $GRAPH
else
   echo "Graphfile exist"
fi

###########################################################
#                                                                                                                   #
#                           Determine the OS Version and excute the cpio              #
#                            This part of the script uses the local cpio depending    #
#                              on the flavor of UNIX.  This part can be modified to     #
#                           suit the various flavors of UNIX such as BSD, Linux      #
#                                     Solaris, HP, IBM-AIX, SCO (maybe)..                   #
#                                                                                                                    #
###########################################################
echo "Please wait: Identifying HOST and UNIX flavor"
case $UNAME in
   SunOS)
       if [ "$UNAME"="SunOS" ]; then
       (grep -c $INCLUDE | $CPIO -ocBv  > $SUNDEV) 2>&1 | $TEE -a $LOGDIR
       mailx -s "$HOSTNAME: Backup Complete" $CONTACTS < /dev/null > /dev/null 2>&1
     fi
    ;;
   HP-UX)
       if [ "$UNAME"="HP-UX" ]; then
       (cat $GRAPH | $CPIO -ocBv > $HPDEV) 2>&1 | $TEE -a $LOGDIR
       mailx -s "$HOSTNAME: Backup Complete" $CONTACTS < /dev/null > /dev/null 2>&1
     fi
    ;;
  *)
       echo "$UNAME is not supported in this script"
       echo "Backup failed"
       mailx -s "Error: Backup failed on $HOSTNAME" $CONTACTS < /dev/null > /dev/null 2>&1
    ;;
esac

##########################################################
#                                                                                                                #
#                                          Eject the tape(s)                                           #
#                                                                                                                #
##########################################################
echo "Ejecting Tape"
  if [ "$UNAME"="SunOS" ]; then
   mt -f $SUNDEV offline
  elif
   [ "$UNAME"="HP-UX" ]; then
   mt -f $HPDEV offl
  else
   echo "Tape on $UNAME is offline"
   mailx -s "$HOSTNAME: No tape loaded or drive offline" $CONTACTS < /dev/null > /dev/null 2>&1
fi
echo "Tape Ejected"

##########################################################
#
#               Compress the log files
#
##########################################################
echo "Compressing Log file"
$GZIP $LOGDIR
echo "Compression done"

##########################################################
#
#               Clean up the backup logs
#
##########################################################
echo "Removing log file"
find $LOGDIR -mtime +5 -exec rm -f {} \;