4 confdir=/home/backup/conf/ #configuration files
5 webdir=/home/backup/public_html #web-pages
6 storagedir=/backup #mountpoint of huge disc
10 exclude=$confdir/exclude
11 [ ! -f $exclude ] && printf "tmp\ncore\n" > $exclude
14 #syntax of remotestat:
16 remotestatf=$confdir/remotestat
17 [ -f $remotestatf ] && remotestat=`cat $remotestatf`
20 PATH=/local/bin:$PATH:/store/bin
26 echo "Exclude pattern:"
33 # The computers we want to back up
34 unixcomputers=`cat $confdir/computers.unix`
37 #disse bør kunne varieres fra fs til fs?
38 #disse bør flyttes ut i egen fil som kan editeres fra web kanskje?
39 maksantallfulle=2 #hvor mange fulle vi tar vare på
40 dagermellomfulle=30 #antall dager før det er på tide med ny full
45 DATE=`date "+%Y%m%d%H%M"` #format: touch
46 DATEs=`date "+%Y-%m-%d %H:%M"` #format: tar
50 # krever at noen variabler er satt
51 # krever at vi er i rett katalog
55 printf "%-${logw}s %s\n" "$computer:$filesystem" "$backuplevel backup"
57 if [ "$backuplevel" = "daglig" ] || [ "$backuplevel" = "incremental" ]
59 forrige=`cat ../.date`
60 forrigecmd="--newer=\"$forrige\""
65 #Prøver å ta backup med tar
66 if `ssh $computer "cd $filesystem ;\
67 tar cfl - . $forrigecmd \
68 --exclude-from=/tmp/.backup/exclude \
70 | dd of=$DATE.tmp 2>/dev/null`
73 mv $DATE.tmp $DATE.tgz
74 #make a filelist and update the datefile
75 tar tvfz $DATE.tgz > $DATE.idx 2>&1 &&
76 echo $DATEs > ../.date &&
77 touch -t $DATE ../.date
79 #make a sortet filelist
80 grep -v ^d $DATE.idx | sort -n -r +2 > $DATE.sdx
84 chmod 644 *sdx *idx 2>/dev/null
88 rm $DATE.tmp 2>/dev/null
89 echo "$backuplevel backup of $computer:$filesystem failed and deleted"
94 #Løper gjennom listen av unixmaskiner som vi skal ta backup av
95 for computer in $unixcomputers
98 #tømmer variabelen for sikkerhets skyld
101 #Sjekker nest siste felt i fstab. Om det er 0 tar vi ikke backup
102 filesystems=`ssh -n $computer "cat /etc/fstab" \
105 | awk '{ if ( $(NF-1) != "0" ) print $2}' `
107 #clean up our dir at this client
108 ssh $computer "rm -rf /tmp/.backup ; mkdir -m 700 /tmp/.backup"
110 #try to copy $exclude to $computer
111 scp $exclude $computer:/tmp/.backup/exclude ||
112 echo "Vi klarte ikke kopiere over exclude.txt til $computer :("
114 #try to copy preeexec and postexec if they exist
115 [ -f $confdir/preexec.$computer ] &&
116 scp $confdir/preexec.$computer $computer:/tmp/.backup/preexec
117 [ -f $confdir/postexec.$computer ] &&
118 scp $confdir/postexec.$computer $computer:/tmp/.backup/postexec
120 #try to run preexec if it exist
121 ssh $computer "[ -f /tmp/.backup/preexec ] &&
122 /bin/bash -x /tmp/.backup/preexec"
124 for filesystem in $filesystems
126 #lager en variant uten tegnet "/" eller $ (gjelder NT)
127 sfilesystem=`echo $filesystem | tr '\/\$' '__'`
129 #lager det som trengs av kataloger
130 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/{full,daglig} 2>/dev/null
133 echo $filesystem > $storagedir/$computer/$sfilesystem.name
134 chmod 644 $storagedir/$computer/$sfilesystem.name
136 #set default backuplevel
139 if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
141 #take the first full backup of this filesystem on this computer
143 echo $DATEs > $storagedir/$computer/$sfilesystem/.date
146 #sjekker om det er på tide med en full
148 [ -z `find $storagedir/$computer/$sfilesystem/full/ -name \*tgz -mtime -$dagermellomfulle` ]
153 #gå ned i rett katalog
154 cd $storagedir/$computer/$sfilesystem/$backuplevel
156 #perform the actual backup
159 #delete complete backups
160 mf=$(($maksantallfulle+1))
161 for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz | tail +$mf`
163 prefix=`echo $full|cut -d . -f 1`
164 echo "$computer:$filesystem sletter full $prefix (for mange)"
168 #delete incremental backups older than the oldest complete backup
169 oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz | tail -1`
171 $storagedir/$computer/$sfilesystem/daglig \
175 #denne funker bare med gnu find
176 #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n" \
180 #try to run postexec if it exist
181 ssh $computer "[ -f /tmp/.backup/postexec ] &&
182 /bin/bash -x /tmp/.backup/postexec"
187 /home/backup/report.sh $storagedir > /tmp/report.txt
188 [ ! -z $remotestat ] && scp /tmp/report.txt $remotestat