+ #We try to run tar on the remote computer
+ # z gzip it
+ # c create archive
+ # C change to directory first
+ # - output to stdout (we pipe to gzip, then to dd)
+ # . where to start taring (see C)
+ # $lastcmd only files newer than this
+ # --exclude-from file to get exclusion pattern from
+ # pipe to gzip, which in turn pipes over the ssh-stream
+ # ..to dd, to output to a file. We surpress messages from dd.
+ # And at last, redirect stderr to stdout, to get output logged.
+ TARFILE=$DATE.tmp
+ TARCMD="ssh root@$computer \"$tar --one-file-system -zcf - -C $filesystem . $lastcmd \
+ --exclude-from=$exf\" > $TARFILE"
+ echo `date`" $computer: Running $TARCMD" >&2
+
+ if eval $TARCMD; then
+ mv $TARFILE $DATE.tgz
+ #make a filelist.
+ #update the datefile if the filelist is ok.
+ tar tvfz $DATE.tgz > $DATE.idx 2>&1 &&
+ echo $DATEs > ../.date &&
+ touch -t $DATE ../.date
+
+ #make a sortet filelist
+ grep -v ^d $DATE.idx | sort -n -r +2 > $DATE.sdx
+
+ #fix perm
+ chmod 600 *tgz #only for us
+ chmod 644 *sdx *idx 2>/dev/null #everyone can read