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 $confdir/computers.unix`
36 #disse bør kunne varieres fra fs til fs?
37 maksantallfulle=2 #hvor mange fulle vi tar vare på
38 dagermellomfulle=30 #antall dager før det er på tide med ny full
43 DATE=`date "+%Y%m%d%H%M"` #format: touch
44 DATEs=`date "+%Y-%m-%d %H:%M"` #format: tar
48 # krever at noen variabler er satt
49 # krever at vi er i rett katalog
53 printf "%-${logw}s %s\n" "$computer:$filesystem" "$backuplevel backup"
55 if [ "$backuplevel" = "daglig" ] || [ "$backuplevel" = "incremental" ]
58 lastcmd="--newer=\"$lastd\""
63 #if this client has a special tar
64 #we need to find a better solution to this conf-issue
65 if [ -f $confdir/tar.$computer ] ; then
66 tar=`cat $confdir/tar.$computer`
71 #expand the exclude-path for use with tar
72 exf=`ssh $computer "ls ~/.backup/exclude"`
74 #We try to run tar on the remote computer
75 # C is instead of 'cd $filesystem'
76 # - is 'this directory'
77 # l is 'stay in local filesystem
78 if `ssh $computer "$tar cfCl - $filesystem . $lastcmd \
81 | dd of=$DATE.tmp 2>/dev/null`
84 mv $DATE.tmp $DATE.tgz
86 #update the datefile if the filelist is ok.
87 tar tvfz $DATE.tgz > $DATE.idx 2>&1 &&
88 echo $DATEs > ../.date &&
89 touch -t $DATE ../.date
91 #make a sortet filelist
92 grep -v ^d $DATE.idx | sort -n -r +2 > $DATE.sdx
95 chmod 600 *tgz #only for us
96 chmod 644 *sdx *idx 2>/dev/null #everyone can read
100 rm $DATE.tmp 2>/dev/null
101 echo "$backuplevel backup of $computer:$filesystem failed and deleted"
106 #Løper gjennom listen av unixmaskiner som vi skal ta backup av
107 for computer in $unixcomputers
110 #tømmer variabelen for sikkerhets skyld
113 #Sjekker nest siste felt i fstab. Om det er 0 tar vi ikke backup
114 filesystems=`ssh -n $computer "cat /etc/fstab" \
117 | awk '{ if ( $(NF-1) != "0" ) print $2}' `
119 #clean up our dir at this client
120 ssh $computer "rm -r ~/.backup ; mkdir -m 700 ~/.backup"
122 #try to copy $exclude to $computer
123 scp $exclude $computer:~/.backup/exclude ||
124 echo "could not copy exclude.txt to $computer :("
126 #try to copy preeexec and postexec if they exist
127 [ -f $confdir/preexec.$computer ] &&
128 scp $confdir/preexec.$computer $computer:~/.backup/preexec
129 [ -f $confdir/postexec.$computer ] &&
130 scp $confdir/postexec.$computer $computer:~/.backup/postexec
132 #try to run preexec if it exist
133 ssh $computer "[ -f ~/.backup/preexec ] && /bin/bash -x ~/.backup/preexec"
135 for filesystem in $filesystems
137 #lager en variant uten tegnet "/" eller $ (gjelder NT)
138 sfilesystem=`echo $filesystem | tr '\/\$' '__'`
140 #lager det som trengs av kataloger
141 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/{full,daglig} 2>/dev/null
144 echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name
145 chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
147 #set default backuplevel
150 if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
152 #take the first full backup of this filesystem on this computer
154 echo $DATEs > $storagedir/$computer/$sfilesystem/.date
157 #sjekker om det er på tide med en full
159 [ -z `find $storagedir/$computer/$sfilesystem/full/ -name \*tgz -mtime -$dagermellomfulle` ]
164 #gå ned i rett katalog
165 cd $storagedir/$computer/$sfilesystem/$backuplevel
167 #perform the actual backup
170 #delete complete backups
171 mf=$(($maksantallfulle+1))
172 for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz | tail +$mf`
174 prefix=`echo $full|cut -d . -f 1`
175 echo "$computer:$filesystem sletter full $prefix (for mange)"
179 #delete incremental backups older than the oldest complete backup
180 oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz | tail -1`
182 $storagedir/$computer/$sfilesystem/daglig \
186 #denne funker bare med gnu find
187 #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n" \
191 #try to run postexec if it exist
192 ssh $computer "[ -f ~/.backup/postexec ] && /bin/bash -x ~/.backup/postexec"
197 /home/backup/report.sh $storagedir > /tmp/report.txt
198 #[ ! -z $remotestat ] && scp /tmp/report.txt $remotestat