3 # Run this script as root on the machine that has the tape drive, to make a
4 # level-1 dump containing all files changed since the last full dump.
6 # If you give `now' as an argument, the dump is done immediately.
7 # Otherwise, it waits until 1am.
9 # You must edit the file `backup-specs' to set the parameters for your site.
12 echo The backup must be run as root
,
13 echo or
else some files will fail to be dumped.
19 # Get the values of BACKUP_DIRS and BACKUP_FILES, and other variables.
22 # Maybe sleep until around specified or default hour.
24 if [ "$1" != "now" ]; then
25 if [ "$1"x
!= x
]; then
30 pausetime
=`date | awk '{hr=substr($4,1,2);\\
33 print 3600*(spec-hr)-60*mn;\\
35 print 3600*(spec+(24-hr))-60*mn; }' spec=$spec`
44 LOGFILE
=log
-`date | awk '{print $2 "-" $3 "-" $6}'`-level-1
45 HOST
=`hostname | sed 's/\..*//'`
46 TAR_PART1
="/usr/local/bin/tar -c --multi-volume --one-file-system --block=$BLOCKING --sparse --volno-file=$VOLNO_FILE --atime-preserve"
48 # Make sure the log file did not already exist. Create it.
50 if [ -f $LOGFILE ] ; then
51 echo Log
file $LOGFILE already exists.
57 mt
-f $TAPE_FILE rewind
61 while [ $# -ne 0 ] ; do
62 host=`echo $1 | sed 's/:.*$//'`
63 fs
=`echo $1 | sed 's/^.*://'`
65 fsname
=`echo $1 | sed 's/\//:/g'`
67 # This filename must be absolute; it is opened on the machine that runs tar.
68 TAR_PART2
="--listed=/etc/tar-backup/temp.level-1"
69 TAR_PART3
="--label='level 1 backup of $fs on $host at $date' -C $fs ."
71 echo Backing up
$1 at $date | tee -a $LOGFILE
72 echo Last full dump on this filesystem
: | tee -a $LOGFILE
74 if [ $HOST != $host ] ; then
75 rsh $host "ls -l /etc/tar-backup/$fsname.level-0; \
76 cp /etc/tar-backup/$fsname.level-0 /etc/tar-backup/temp.level-1" \
77 2>&1 | tee -a $LOGFILE
79 ls -l /etc
/tar-backup/$fsname.level
-0 2>&1 | tee -a $LOGFILE
80 cp /etc
/tar-backup/$fsname.level
-0 /etc
/tar-backup/temp.level
-1 2>&1 | tee -a $LOGFILE
83 # Actually back things up.
85 if [ $HOST != $host ] ; then
86 rsh $host $TAR_PART1 -f $HOST:$TAPE_FILE $TAR_PART2 $TAR_PART3 2>&1 | tee -a $LOGFILE
88 # Using `sh -c exec' causes nested quoting and shell substitution
89 # to be handled here in the same way rsh handles it.
90 sh
-c "exec $TAR_PART1 -f $TAPE_FILE $TAR_PART2 $TAR_PART3" 2>&1 | tee -a $LOGFILE
92 if [ $?
-ne 0 ] ; then
93 echo Backup of
$1 failed.
| tee -a $LOGFILE
94 # I'm assuming that the tar will have written an empty
95 # file to the tape, otherwise I should do a cat here.
97 if [ $HOST != $host ] ; then
98 rsh $host mv -f /etc
/tar-backup/temp.level
-1 /etc
/tar-backup/$fsname.level
-1 2>&1 | tee -a $LOGFILE
100 mv -f /etc
/tar-backup/temp.level
-1 /etc
/tar-backup/$fsname.level
-1 2>&1 | tee -a $LOGFILE
103 $TAPE_STATUS | tee -a $LOGFILE
108 # Dump any individual files requested.
110 if [ x
!= "x$BACKUP_FILES" ] ; then
112 TAR_PART2
="--listed=/etc/tar-backup/temp.level-1"
113 TAR_PART3
="--label='Incremental backup of miscellaneous files at $date'"
115 echo Backing up miscellaneous files
at $date | tee -a $LOGFILE
116 echo Last full dump of these files
: | tee -a $LOGFILE
117 ls -l /etc
/tar-backup/misc.level
-0 2>&1 | tee -a $LOGFILE
119 rm -f /etc
/tar-backup/temp.level
-1 2>&1 | tee -a $LOGFILE
120 cp /etc
/tar-backup/misc.level
-0 /etc
/tar-backup/temp.level
-1 2>&1 | tee -a $LOGFILE
122 echo Backing up miscellaneous files
at $date | tee -a $LOGFILE
123 # Using `sh -c exec' causes nested quoting and shell substitution
124 # to be handled here in the same way rsh handles it.
125 sh
-c "exec $TAR_PART1 -f $TAPE_FILE $TAR_PART2 $TAR_PART3 \
126 $BACKUP_FILES" 2>&1 | tee -a $LOGFILE
127 if [ $?
-ne 0 ] ; then
128 echo Backup of miscellaneous files failed.
| tee -a $LOGFILE
129 # I'm assuming that the tar will have written an empty
130 # file to the tape, otherwise I should do a cat here.
132 mv -f /etc
/tar-backup/temp.level
-1 /etc
/tar-backup/misc.level
-1 2>&1 | tee -a $LOGFILE
134 $TAPE_STATUS | tee -a $LOGFILE
136 echo No miscellaneous files specified
| tee -a $LOGFILE
140 mt
-f $TAPE_FILE rewind
141 mt
-f $TAPE_FILE offl
143 echo Sending the dump log to
$ADMINISTRATOR
144 cat $LOGFILE | sed -f logfile.
sed > $LOGFILE.tmp
145 /usr
/ucb
/mail -s "Results of backup on `date`" $ADMINISTRATOR < $LOGFILE.tmp