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 if `ssh $computer "cd $filesystem ;\
76 $tar cfl - . $lastcmd \
79 | dd of=$DATE.tmp 2>/dev/null`
82 mv $DATE.tmp $DATE.tgz
84 #update the datefile if the filelist is ok.
85 tar tvfz $DATE.tgz > $DATE.idx 2>&1 &&
86 echo $DATEs > ../.date &&
87 touch -t $DATE ../.date
89 #make a sortet filelist
90 grep -v ^d $DATE.idx | sort -n -r +2 > $DATE.sdx
93 chmod 600 *tgz #only for us
94 chmod 644 *sdx *idx 2>/dev/null #everyone can read
98 rm $DATE.tmp 2>/dev/null
99 echo "$backuplevel backup of $computer:$filesystem failed and deleted"
104 #Løper gjennom listen av unixmaskiner som vi skal ta backup av
105 for computer in $unixcomputers
108 #tømmer variabelen for sikkerhets skyld
111 #Sjekker nest siste felt i fstab. Om det er 0 tar vi ikke backup
112 filesystems=`ssh -n $computer "cat /etc/fstab" \
115 | awk '{ if ( $(NF-1) != "0" ) print $2}' `
117 #clean up our dir at this client
118 ssh $computer "rm -r ~/.backup ; mkdir -m 700 ~/.backup"
120 #try to copy $exclude to $computer
121 scp $exclude $computer:~/.backup/exclude ||
122 echo "could not copy exclude.txt to $computer :("
124 #try to copy preeexec and postexec if they exist
125 [ -f $confdir/preexec.$computer ] &&
126 scp $confdir/preexec.$computer $computer:~/.backup/preexec
127 [ -f $confdir/postexec.$computer ] &&
128 scp $confdir/postexec.$computer $computer:~/.backup/postexec
130 #try to run preexec if it exist
131 ssh $computer "[ -f ~/.backup/preexec ] && /bin/bash -x ~/.backup/preexec"
133 for filesystem in $filesystems
135 #lager en variant uten tegnet "/" eller $ (gjelder NT)
136 sfilesystem=`echo $filesystem | tr '\/\$' '__'`
138 #lager det som trengs av kataloger
139 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/{full,daglig} 2>/dev/null
142 echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name
143 chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
145 #set default backuplevel
148 if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
150 #take the first full backup of this filesystem on this computer
152 echo $DATEs > $storagedir/$computer/$sfilesystem/.date
155 #sjekker om det er på tide med en full
157 [ -z `find $storagedir/$computer/$sfilesystem/full/ -name \*tgz -mtime -$dagermellomfulle` ]
162 #gå ned i rett katalog
163 cd $storagedir/$computer/$sfilesystem/$backuplevel
165 #perform the actual backup
168 #delete complete backups
169 mf=$(($maksantallfulle+1))
170 for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz | tail +$mf`
172 prefix=`echo $full|cut -d . -f 1`
173 echo "$computer:$filesystem sletter full $prefix (for mange)"
177 #delete incremental backups older than the oldest complete backup
178 oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz | tail -1`
180 $storagedir/$computer/$sfilesystem/daglig \
184 #denne funker bare med gnu find
185 #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n" \
189 #try to run postexec if it exist
190 ssh $computer "[ -f ~/.backup/postexec ] && /bin/bash -x ~/.backup/postexec"
195 /home/backup/report.sh $storagedir > /tmp/report.txt
196 #[ ! -z $remotestat ] && scp /tmp/report.txt $remotestat