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" ] || [ "$backuplevel" = "incremental" ]
57 forrige=`cat ../.date`
58 forrigecmd="--newer=\"$forrige\""
63 #We try to run tar on the remote computer
64 if `ssh $computer ". /tmp/.backup/env ;\
66 tar cfl - . $forrigecmd \
67 --exclude-from=/tmp/.backup/exclude \
69 | dd of=$DATE.tmp 2>/dev/null`
72 mv $DATE.tmp $DATE.tgz
74 #update the datefile if the filelist is ok.
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
83 chmod 600 *tgz #only for us
84 chmod 644 *sdx *idx 2>/dev/null #everyone can read
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 ". /tmp/.backup/env ; 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 "could not copy exclude.txt to $computer :("
114 #create env if it does not exist
115 if [ ! -f $confdir/env.$computer ]
116 touch $confdir/env.$computer
119 scp $confdir/env.$computer $computer:/tmp/.backup/env
121 #try to copy preeexec and postexec if they exist
122 [ -f $confdir/preexec.$computer ] &&
123 scp $confdir/preexec.$computer $computer:/tmp/.backup/preexec
124 [ -f $confdir/postexec.$computer ] &&
125 scp $confdir/postexec.$computer $computer:/tmp/.backup/postexec
127 #try to run preexec if it exist
128 ssh $computer ". /tmp/.backup/env ; [ -f /tmp/.backup/preexec ] && /bin/bash -x /tmp/.backup/preexec"
130 for filesystem in $filesystems
132 #lager en variant uten tegnet "/" eller $ (gjelder NT)
133 sfilesystem=`echo $filesystem | tr '\/\$' '__'`
135 #lager det som trengs av kataloger
136 mkdir -m 755 -p $storagedir/$computer/$sfilesystem/{full,daglig} 2>/dev/null
139 echo $filesystem > ${storagedir}/${computer}/.${sfilesystem}.name
140 chmod 644 ${storagedir}/${computer}/.${sfilesystem}.name
142 #set default backuplevel
145 if [ ! -f $storagedir/$computer/$sfilesystem/.date ]
147 #take the first full backup of this filesystem on this computer
149 echo $DATEs > $storagedir/$computer/$sfilesystem/.date
152 #sjekker om det er på tide med en full
154 [ -z `find $storagedir/$computer/$sfilesystem/full/ -name \*tgz -mtime -$dagermellomfulle` ]
159 #gå ned i rett katalog
160 cd $storagedir/$computer/$sfilesystem/$backuplevel
162 #perform the actual backup
165 #delete complete backups
166 mf=$(($maksantallfulle+1))
167 for full in `ls -1t $storagedir/$computer/$sfilesystem/full/*tgz | tail +$mf`
169 prefix=`echo $full|cut -d . -f 1`
170 echo "$computer:$filesystem sletter full $prefix (for mange)"
174 #delete incremental backups older than the oldest complete backup
175 oldf=`ls -t1 $storagedir/$computer/$sfilesystem/full/*tgz | tail -1`
177 $storagedir/$computer/$sfilesystem/daglig \
181 #denne funker bare med gnu find
182 #-printf "$computer:$filesystem sletter daglig %f (for gammel)\n" \
186 #try to run postexec if it exist
187 ssh $computer ". /tmp/.backup/env ; [ -f /tmp/.backup/postexec ] && /bin/bash -x /tmp/.backup/postexec"
192 /home/backup/report.sh $storagedir > /tmp/report.txt
193 [ ! -z $remotestat ] && scp /tmp/report.txt $remotestat