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
67 #We try to run tar on the remote computer
68 #need to specify a special tar on some clients. how?
69 if `ssh $computer "cd $filesystem ;\
70 $tar cfl - . $lastcmd \
71 --exclude-from=/tmp/.backup/exclude \
73 | dd of=$DATE.tmp 2>/dev/null`
76 mv $DATE.tmp $DATE.tgz
78 #update the datefile if the filelist is ok.
79 tar tvfz $DATE.tgz > $DATE.idx 2>&1 &&
80 echo $DATEs > ../.date &&
81 touch -t $DATE ../.date
83 #make a sortet filelist
84 grep -v ^d $DATE.idx | sort -n -r +2 > $DATE.sdx
87 chmod 600 *tgz #only for us
88 chmod 644 *sdx *idx 2>/dev/null #everyone can read
92 rm $DATE.tmp 2>/dev/null
93 echo "$backuplevel backup of $computer:$filesystem failed and deleted"
98 #Løper gjennom listen av unixmaskiner som vi skal ta backup av
99 for computer in $unixcomputers
102 #tømmer variabelen for sikkerhets skyld
105 #Sjekker nest siste felt i fstab. Om det er 0 tar vi ikke backup
106 filesystems=`ssh -n $computer "cat /etc/fstab" \
109 | awk '{ if ( $(NF-1) != "0" ) print $2}' `
111 #clean up our dir at this client
112 ssh $computer "rm -rf /tmp/.backup ; mkdir -m 700 /tmp/.backup"
114 #try to copy $exclude to $computer
115 scp $exclude $computer:/tmp/.backup/exclude ||
116 echo "could not copy exclude.txt to $computer :("
118 #try to copy preeexec and postexec if they exist
119 [ -f $confdir/preexec.$computer ] &&
120 scp $confdir/preexec.$computer $computer:/tmp/.backup/preexec
121 [ -f $confdir/postexec.$computer ] &&
122 scp $confdir/postexec.$computer $computer:/tmp/.backup/postexec
124 #try to run preexec if it exist
125 ssh $computer "[ -f /tmp/.backup/preexec ] && /bin/bash -x /tmp/.backup/preexec"
127 for filesystem in $filesystems
129 #lager en variant uten tegnet "/" eller $ (gjelder NT)
130 sfilesystem=`echo $filesystem | tr '\/\$' '__'`
132 #lager det som trengs av kataloger
133 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/{full,daglig} 2>/dev/null
136 echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name
137 chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
139 #set default backuplevel
142 if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
144 #take the first full backup of this filesystem on this computer
146 echo $DATEs > $storagedir/$computer/$sfilesystem/.date
149 #sjekker om det er på tide med en full
151 [ -z `find $storagedir/$computer/$sfilesystem/full/ -name \*tgz -mtime -$dagermellomfulle` ]
156 #gå ned i rett katalog
157 cd $storagedir/$computer/$sfilesystem/$backuplevel
159 #perform the actual backup
162 #delete complete backups
163 mf=$(($maksantallfulle+1))
164 for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz | tail +$mf`
166 prefix=`echo $full|cut -d . -f 1`
167 echo "$computer:$filesystem sletter full $prefix (for mange)"
171 #delete incremental backups older than the oldest complete backup
172 oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz | tail -1`
174 $storagedir/$computer/$sfilesystem/daglig \
178 #denne funker bare med gnu find
179 #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n" \
183 #try to run postexec if it exist
184 ssh $computer "[ -f /tmp/.backup/postexec ] && /bin/bash -x /tmp/.backup/postexec"
189 /home/backup/report.sh $storagedir > /tmp/report.txt
190 [ ! -z $remotestat ] && scp /tmp/report.txt $remotestat