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- #!/bin/sh
- #
- # Run this script as root on the machine that has the tape drive, to make a
- # level-1 dump containing all files changed since the last full dump.
- #
- # If you give `now' as an argument, the dump is done immediately.
- # Otherwise, it waits until 1am.
- #
- # You must edit the file `backup-specs' to set the parameters for your site.
-
- 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
-
- # Get the values of BACKUP_DIRS and BACKUP_FILES, and other variables.
- . ./backup-specs
-
- # 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 "-" $6}'`-level-1
- HOST=`hostname | sed 's/\..*//'`
- TAR_PART1="/usr/local/bin/tar -c +multi-volume +one-file-system +block=$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
-
- 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'`
-
- # This filename must be absolute; it is opened on the machine that runs tar.
- TAR_PART2="+listed=/etc/tar-backup/temp.level-1"
- TAR_PART3="+label='level 1 backup of $fs on $host at $date' -C $fs ."
-
- echo Backing up $1 at $date | tee -a $LOGFILE
- echo Last full dump on this filesystem: | tee -a $LOGFILE
-
- if [ $HOST != $host ] ; then
- rsh $host "ls -l /etc/tar-backup/$fsname.level-0; \
- cp /etc/tar-backup/$fsname.level-0 /etc/tar-backup/temp.level-1" \
- 2>&1 | tee -a $LOGFILE
- else
- ls -l /etc/tar-backup/$fsname.level-0 2>&1 | tee -a $LOGFILE
- cp /etc/tar-backup/$fsname.level-0 /etc/tar-backup/temp.level-1 2>&1 | tee -a $LOGFILE
- fi
-
- # Actually back things up.
-
- if [ $HOST != $host ] ; then
- rsh $host $TAR_PART1 -f $HOST:$TAPE_FILE $TAR_PART2 $TAR_PART3 2>&1 | tee -a $LOGFILE
- else
- # 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 $TAPE_FILE $TAR_PART2 $TAR_PART3" 2>&1 | tee -a $LOGFILE
- fi
- if [ $? -ne 0 ] ; then
- echo Backup 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 $host mv -f /etc/tar-backup/temp.level-1 /etc/tar-backup/$fsname.level-1 2>&1 | tee -a $LOGFILE
- else
- mv -f /etc/tar-backup/temp.level-1 /etc/tar-backup/$fsname.level-1 2>&1 | tee -a $LOGFILE
- fi
- fi
- $TAPE_STATUS | tee -a $LOGFILE
- sleep 60
- shift
- done
-
- # Dump any individual files requested.
-
- if [ x != "x$BACKUP_FILES" ] ; then
- date=`date`
- TAR_PART2="+listed=/etc/tar-backup/temp.level-1"
- TAR_PART3="+label='Incremental backup of miscellaneous files at $date'"
-
- echo Backing up miscellaneous files at $date | tee -a $LOGFILE
- echo Last full dump of these files: | tee -a $LOGFILE
- ls -l /etc/tar-backup/misc.level-0 2>&1 | tee -a $LOGFILE
-
- rm -f /etc/tar-backup/temp.level-1 2>&1 | tee -a $LOGFILE
- cp /etc/tar-backup/misc.level-0 /etc/tar-backup/temp.level-1 2>&1 | tee -a $LOGFILE
-
- echo Backing up miscellaneous files at $date | 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 $TAPE_FILE $TAR_PART2 $TAR_PART3 \
- $BACKUP_FILES" 2>&1 | tee -a $LOGFILE
- if [ $? -ne 0 ] ; then
- echo Backup of miscellaneous 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
- mv -f /etc/tar-backup/temp.level-1 /etc/tar-backup/misc.level-1 2>&1 | tee -a $LOGFILE
- fi
- $TAPE_STATUS | tee -a $LOGFILE
- else
- echo No miscellaneous files specified | tee -a $LOGFILE
- false
- fi
-
- mt -f $TAPE_FILE rewind
- mt -f $TAPE_FILE offl
-
- echo Sending the dump log to $ADMINISTRATOR
- cat $LOGFILE | sed -f logfile.sed > $LOGFILE.tmp
- /usr/ucb/mail -s "Results of backup on `date`" $ADMINISTRATOR < $LOGFILE.tmp
-