#!/bin/sh
PATH=/usr/brl/sbin:/bin:/usr/bin:/etc
#   Usage: Backup [/dev/[r]dk## ...]
#   More than one filesystem may be specified, seperated by blanks.
#   With no arguments, Backup defaults to the uncommented entries
#   in /etc/fstab (not including swap, tmp and dump freq = 0).
#
### Special version for the SGI machines.
### -Mike Muuss, 16-March-90
### Modified 27-Sep-90 for short tapes, -Chuck Kennedy
### Modified 25-Feb-91 to add "e" option, for EFS format tapes (SGI native)
### Modified 5-March-91 to remove "e" option.  Dump in compatible BSD format.
###
if /bin/test $# -lt 1
then
	# reinvoke this shell script
	$0 `awk '{ if(($1!~/^#/)&&($5!~/0/)&&($2!~/tmp/)&&($3!~/swap/)) print $1} ' /etc/fstab`
	exit
fi
echo " "
echo "          BEGINNING OF BACKUP SHELL PROCEDURE"
echo " "
echo " ENTER LEVEL OF DUMP: \c"
	while read level
	do
		if (/bin/test x"$level" = x)
		then
			echo " no backup executed "
			exit
		fi
		case $level in
			0) echo "LEVEL $level selected";
			   echo "";
			   echo " IF THE SYSTEM IS IN SINGLE USER MODE ENTER S";
			   echo "  OTHERWISE ENTER M FOR MULTI-USER:\c";
		           while read mode
			   do
                               case $mode in
			            s*|S*) echo SINGLE USER MODE SELECTED;
					   break;;
			            m*|M*) echo MULTI USER MODE SELECTED;
					   break;;
				    *) echo "ENTER S FOR SINGLE OR M FOR MULTI USER MODE\c": ;;
			       esac
			   done ;
			   break ;;
			1) echo "LEVEL $level selected";
			   mode="m";
			   break;;
			2) echo "LEVEL $level selected";
			   mode="m";
			   break;;
			3) echo "LEVEL $level selected";
			   mode="m";
			   break;;
			4) echo "LEVEL $level selected";
			   mode="m";
			   break;;
			*) echo " LEVEL MUST BE BETWEEN 0 AND 4";
			   echo " PLEASE ENTER LEVEL OF DUMP: \c";;
		esac
	done
echo ""
	while eval
	do
		echo " CURRENT DATE AND TIME IS \c"
		/bin/date
		echo " IS THE DATE AND TIME CORRECT "
		echo "	 ...     PLEASE ENTER YES OR NO: \c"
		read response
		case $response in
			y*|Y*) break;;
			n*|N*) echo " ENTER NEW DATE \"yymmddhhmm\"(or <CR> to skip setting the date): \c";
			       read new_date;
			       date $new_date 2>&1 > /dev/null;;
			*)     ;;
		esac
	done
echo " "
echo " ENTER TAPE DENSITY (1600 or 6250): \c"
	while read density
	do
		case $density in
			1600) break;;
			6250) break;;
			*)    echo " ENTER TAPE DENSITY (1600 or 6250): \c";;
		esac
	done
echo " DENSITY $density selected"
	while eval
	do
		echo " "
		echo " ENTER LOCAL TAPE DRIVE NUMBER (0 or 1), OR REMOTE HOST AND"
		echo "  FULL PATH NAME (e.g. vmb:/dev/rmt0 ): \c"
		read drive
		
		case "$drive" in
			0|1|2|3|4|5|6|7)
				device=/dev/rmt/xmt0d$drive.$density
				if /bin/test ! "(" -w $device ")"
				then
					echo " "
					echo " ERROR, DRIVE $device DOES NOT EXIST"
					continue
			        fi;;
			""|" ")
				echo " "
				echo " ERROR, NULL RESPONSE"
				continue;;
			*)
				device=$drive
				mt -t $device exist
				status=$?
				case "$status" in
				0)
					eval;; # OK
				1)
					echo " "
					echo "   (NOTICE: $device NOT READY, PROCEEDING)"
					echo " ";;
				*)
					echo " ERROR: $device INVALID, status=$status"
					continue;;
				esac;;
		esac
		break
	done
echo " TAPE DEVICE $device SELECTED."
echo " "
echo " THE CURRENT MOUNTED FILE-SYSTEM(S) CONFIGURATION INFORMATION IS:"
	df
echo " "
echo "           THE FILE-SYSTEMS ENTERED FOR BACKUP ARE ..."
	for i
	do
		echo "               $i"
	done
echo " "
echo "           ARE THE FILE-SYSTEMS ENTERED CORRECT ? "
echo "                ...     PLEASE ENTER YES OR NO: \c"
	while read response
	do
		case $response in
			y*|Y*) break;;
			n*|N*) echo "PLEASE RUN BACKUP AGAIN WITH THE PROPER FILE-SYSTEMS";
			       exit;;
			*)     echo " PLEASE ENTER YES OR NO: \c"
		esac
	done
if (test "$mode" = "s" || test "$mode" = "S")
then
	echo "  BEGINNING FILE SYSTEM CONSISTENSY CHECK ON ENTERED FILE SYSTEMS : "
	echo " "
	echo "                  PREEN FILESYSTEMS "
	/etc/preen
	case $? in
	0)
		echo "                   PREEN SUCCESSFUL"
		echo " "
 		;;
	4)
		echo " PLEASE REBOOT AND RUN BACKUP AGAIN"
		/etc/halt -n -q
		;;
	8)
		echo "                   PREEN UNSUCCESSFUL"
		echo " "
		echo "                  exiting backup procedure ..."
		exit
	esac
fi
#
#

for i
do
	echo "      MARK AND LOAD TAPE FOR DUMPING    ...     $i"
	echo "      ENTER YES WHEN PREPARED TO CONTINUE ... \c"
	while read response
	do
		case $response in
			y*|Y*) break;;
			*)     echo " ENTER YES WHEN READY TO PROCEED: \c";;
		esac
	done
	echo "                   DUMPING FILE SYSTEM : $i"
	echo " "
	echo dump "$level"usdf 2000 $density $device $i
	dump "$level"usdf 2000 $density $device $i
	status=$?
	case "$status" in
		0)	eval;;		# OK
		*)
			echo " "
			echo ' **** ERROR ****', DUMP OF $i FAILED
			echo " ";;
	esac
done
echo "	BACKUP COMPLETE "
if (test "$mode" = "s" || test "$mode" = "S")
then
echo " type control/d to go timesharing"
fi
#  @(#)$Header: Backup.sh,v 1.7 89/01/11 10:43:54 mrwil BRL $