NOVA - For the NeXT Workstation/NOVA - For the NeXT Workstation.iso/Apps/ArchiveUtils/tar/next/level-0

Text File | 1992-12-20 | 5.3 KB | 166 lines

#!/bin/sh
#
# Run this script as root on the machine that has the tape drive, to make a
# full dump.
#
# If you give `now' as an argument, the dump is done immediately.
# Otherwise, it waits until 1am, or until the hour given as argument.
# Specify the hour as a number from 0 to 23.
#
# You must edit the file `backup-specs' to set the parameters for your site.
#
# Modifications by P. E. Cantrell to use remote tape from host
# TAPE_HOST set in backup-specs-tape. Added variable
# USERID to be the userid on the remote machine, also
# set in backup-specs-tape. Also fixed problem with
# >& construct in mkdir. Added new file $fsname.level-1-floppy
# for use with level-2 floppy disk backups. We rewrite *.level-1-floppy
# whenever we do a tape level-0 backup or a tape or floppy level-1
# backup.
#
#set -vx
if [ ! -w / ]; then
   echo The backup must be run as root,
   echo or else some files will fail to be dumped.
   exit 1
else
   false
fi

# This is undesirable -- rms.
# rsh albert /usr/local/adm/motd-backup-start

# Get the values of BACKUP_DIRS and BACKUP_FILES, and other variables.
. ./backup-specs-tape

# Maybe sleep until around specified or default hour.
#
if [ "$1" != "now" ]; then
   if [ "$1"x != x ]; then
      spec=$1
   else
      spec=$BACKUP_HOUR
   fi
   pausetime=`date | awk '{hr=substr($4,1,2);\\
      mn=substr($4,4,2);\\
      if((hr+0)<spec)\\
         print 3600*(spec-hr)-60*mn;\\
      else\\
         print 3600*(spec+(24-hr))-60*mn; }' spec=$spec`
   clear
   cat ./dont_touch
   sleep $pausetime
fi

# start doing things

here=`pwd`
LOGFILE=log-`date | awk '{print $2 "-" $3 "-" $6}'`-full
HOST=`hostname | sed 's/\..*//'`
#TAR_PART1="/usr/local/bin/tar -c +multi-volume +one-file-system +block=$BLOCKING +sparse"
TAR_PART1="/usr/local/bin/tar -c +multi-volume +one-file-system \
  +block=$BLOCKING "

# Make sure the log file did not already exist.  Create it.

if [ -f $LOGFILE ] ; then
   echo Log file $LOGFILE already exists.
   exit 1
else
   touch $LOGFILE
fi

#mt -f $TAPE_FILE rewind
rsh $TAPE_HOST -l $USERID mt rew    #PEC 6-1-91

if [ x != "x$BACKUP_DIRS" ] ; then
set $BACKUP_DIRS
while [ $# -ne 0 ] ; do
   host=`echo $1 | sed 's/:.*$//'`
   fs=`echo $1 | sed 's/^.*://'`
   date=`date`
   fsname=`echo $1 | sed 's/\//:/g'`

   TAR_PART2="+listed=/etc/tar-backup/temp.level-0"
   TAR_PART3="+label='Full tape backup of $fs on $host at $date' -C $fs ."

   echo Backing up $1 at $date to tape | tee -a $LOGFILE

   # Actually back things up.

   if [ $HOST != $host ] ; then
      rsh $host "mkdir /etc/tar-backup >&/dev/null; \
    rm -f /etc/tar-backup/temp.level-0; \
          $TAR_PART1 -f $USERID@$TAPE_HOST:$TAPE_FILE $TAR_PART2 $TAR_PART3" \
     2>&1 | tee -a $LOGFILE
   else
      mkdir /etc/tar-backup 2>/dev/null >/dev/null
      rm -f /etc/tar-backup/temp.level-0
# Using `sh -c exec' causes nested quoting and shell substitution
# to be handled here in the same way rsh handles it.
      sh -c "exec $TAR_PART1 -f $USERID@$TAPE_HOST:$TAPE_FILE $TAR_PART2 \
         $TAR_PART3" 2>&1 | tee -a $LOGFILE
   fi
   if [ $? -ne 0 ] ; then
      echo Backup to tape of $1 failed. | tee -a $LOGFILE
      # I'm assuming that the tar will have written an empty
      # file to the tape, otherwise I should do a cat here.
   else
      if [ $HOST != $host ] ; then
    rsh $host mv -f /etc/tar-backup/temp.level-0 /etc/tar-backup/$fsname.level-0 2>&1 | tee -a $LOGFILE
      else
    cp /etc/tar-backup/temp.level-0 /etc/tar-backup/$fsname.level-1-floppy 2>&1 | tee -a $LOGFILE
        mv -f /etc/tar-backup/temp.level-0 /etc/tar-backup/$fsname.level-0 2>&1 | tee -a $LOGFILE
      fi
   fi
   $TAPE_STATUS | tee -a $LOGFILE
   sleep 60
   shift
done
else
  echo No Backup file systems specified |tee -a $LOGFILE
fi
# Dump any individual files requested.

if [ x != "x$BACKUP_FILES" ] ; then
   date=`date`

   TAR_PART2="+listed=/etc/tar-backup/temp.level-0"
   TAR_PART3="+label='level-0 tape backup of miscellaneous files at $date'"

   mkdir /etc/tar-backup 2>/dev/null >/dev/null
   rm -f /etc/tar-backup/temp.level-0

   echo Backing up level-0 to tape miscellaneous directories and files at $date | tee -a $LOGFILE
   echo "Directories and files:" | tee -a $LOGFILE
   echo $BACKUP_FILES | tee -a $LOGFILE
   echo " " | tee -a $LOGFILE
# Using `sh -c exec' causes nested quoting and shell substitution
# to be handled here in the same way rsh handles it.
   sh -c "exec $TAR_PART1 -f $USERID@$TAPE_HOST:$TAPE_FILE $TAR_PART2 \
    $TAR_PART3 $BACKUP_FILES" 2>&1 | tee -a $LOGFILE
   if [ $? -ne 0 ] ; then
     echo Backup of level-0 to tape of miscellaneous directories and files failed. | tee -a $LOGFILE
     # I'm assuming that the tar will have written an empty
     # file to the tape, otherwise I should do a cat here.
   else
     cp /etc/tar-backup/temp.level-0 /etc/tar-backup/misc.level-1-floppy 2>&1 | tee -a $LOGFILE
     mv -f /etc/tar-backup/temp.level-0 /etc/tar-backup/misc.level-0 2>&1 | tee -a $LOGFILE
   fi
   $TAPE_STATUS | tee -a $LOGFILE
else
   echo No miscellaneous directories or files specified | tee -a $LOGFILE
   false
fi

#mt -f $TAPE_FILE rewind
#mt -f $TAPE_FILE offl
rsh $TAPE_HOST -l $USERID mt rew

echo Sending the dump log to $ADMINISTRATOR
#cat $LOGFILE | sed -f logfile.sed > $LOGFILE.tmp
/usr/ucb/mail -s "Results of level-0 tape backup on `date`" $ADMINISTRATOR < $LOGFILE

# This is undesirable -- rms.
#rsh albert /usr/local/adm/motd-backup-done &