4 confdir=/home/backup/conf/ #configuration files
5 storagedir=/backup #mountpoint of huge disc
9 exclude=$confdir/exclude
10 [ ! -f $exclude ] && printf "tmp\ncore\n" > $exclude
13 #syntax of remotestat:
15 remotestatf=$confdir/remotestat
16 [ -f $remotestatf ] && remotestat=`cat $remotestatf`
19 PATH=/local/bin:$PATH:/store/bin
25 echo "Exclude pattern:"
32 # The computers we want to back up
33 unixcomputers=`cat $confdir/computers.unix \
43 #disse bør kunne varieres fra fs til fs?
44 maksantallfulle=3 #hvor mange fulle vi tar vare på
45 dagermellomfulle=30 #antall dager før det er på tide med ny full
50 DATE=`date "+%Y%m%d%H%M"` #format: touch
51 DATEs=`date "+%Y-%m-%d %H:%M"` #format: tar
55 # krever at noen variabler er satt
56 # krever at vi er i rett katalog
60 printf "%-${logw}s %s\n" "$computer:$filesystem" "$backuplevel backup"
62 if [ "$backuplevel" = "daglig" ] || [ "$backuplevel" = "incremental" ]
65 lastcmd="--newer=\"$lastd\""
70 #if this client has a special tar
71 #we need to find a better solution to this conf-issue
72 if [ -f $confdir/tar.$computer ] ; then
73 tar=`cat $confdir/tar.$computer`
78 #expand the exclude-path for use with tar
79 exf=`ssh $computer "ls ~/.backup/exclude"`
81 #We try to run tar on the remote computer
82 # C is instead of 'cd $filesystem'
83 # - is 'this directory'
84 # l is 'stay in local filesystem
85 echo "cmdline: $tar cfCl - $filesystem . $lastcmd --exclude-from=$exf | gzip"
86 if `ssh -c blowfish $computer "$tar cfCl - $filesystem . $lastcmd \
89 | dd of=$DATE.tmp 2>/dev/null`
92 mv $DATE.tmp $DATE.tgz
94 #update the datefile if the filelist is ok.
95 tar tvfz $DATE.tgz > $DATE.idx 2>&1 &&
96 echo $DATEs > ../.date &&
97 touch -t $DATE ../.date
99 #make a sortet filelist
100 grep -v ^d $DATE.idx | sort -n -r +2 > $DATE.sdx
103 chmod 600 *tgz #only for us
104 chmod 644 *sdx *idx 2>/dev/null #everyone can read
108 rm $DATE.tmp 2>/dev/null
109 echo "$backuplevel backup of $computer:$filesystem failed and deleted"
115 #Løper gjennom listen av unixmaskiner som vi skal ta backup av
116 for computer in $unixcomputers
119 #tømmer variabelen for sikkerhets skyld
122 #Sjekker nest siste felt i fstab. Om det er 0 tar vi ikke backup
123 filesystems=`ssh -n $computer "cat /etc/fstab" \
127 | awk '{ if ( $(NF-1) != "0" ) print $2}' `
129 #clean up our dir at this client
130 ssh $computer "rm -r ~/.backup ; mkdir -m 700 ~/.backup"
132 #try to copy $exclude to $computer
133 scp $exclude $computer:~/.backup/exclude ||
134 echo "could not copy exclude.txt to $computer :("
136 #try to copy preeexec and postexec if they exist
137 [ -f $confdir/preexec.$computer ] &&
138 scp $confdir/preexec.$computer $computer:~/.backup/preexec
139 [ -f $confdir/postexec.$computer ] &&
140 scp $confdir/postexec.$computer $computer:~/.backup/postexec
142 #try to run preexec if it exist
143 ssh $computer "[ -f ~/.backup/preexec ] && /bin/bash -x ~/.backup/preexec"
145 for filesystem in $filesystems
147 #lager en variant uten tegnet "/" eller $ (gjelder NT)
148 sfilesystem=`echo $filesystem | tr '\/\$' '__'`
150 #lager det som trengs av kataloger
151 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/{full,daglig} 2>/dev/null
154 echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name
155 chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
157 #set default backuplevel
160 if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
162 #take the first full backup of this filesystem on this computer
164 echo $DATEs > $storagedir/$computer/$sfilesystem/.date
167 #sjekker om det er på tide med en full
169 [ -z "`find $storagedir/$computer/$sfilesystem/full/ -name \*tgz -mtime -$dagermellomfulle`" ]
174 #gå ned i rett katalog, eller dø
175 # TODO bør sende mail om dette skjer!
176 cd $storagedir/$computer/$sfilesystem/$backuplevel || exit 1
178 #perform the actual backup
181 # Sjekk om det skal være et annet antall fulle backuper av en boks
182 if [ -f $confdir/maksfulle.$computer ] ; then
183 mf=$((`cat $confdir/maksfulle.$computer`+1))
185 mf=$(($maksantallfulle+1))
188 #delete complete backups
189 for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz | tail +$mf`
191 prefix=`echo $full | sed "s/\.[^.]*$//"`
192 echo "$computer:$filesystem sletter full $prefix (for mange)"
196 #delete incremental backups older than the oldest complete backup
197 oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz | tail -1`
199 $storagedir/$computer/$sfilesystem/daglig \
203 # #denne funker bare med gnu find
204 # #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n"
207 #try to run postexec if it exist
208 ssh $computer "[ -f ~/.backup/postexec ] && /bin/bash -x ~/.backup/postexec"
216 /home/backup/report.sh $storagedir > /tmp/report.txt
217 #[ ! -z $remotestat ] && scp /tmp/report.txt $remotestat
220 # print diskusage to logfile