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<strong>Unix</strong> Administration<br />
*)<br />
IN=-mtime -2 -type f; TYPE=incremental;;<br />
esac<br />
for dir in 'awk -F:' $3>100 { print $6 }' /etc/passwd' do<br />
echo "$dir \n"<br />
find $dir -depth $IN -print | cpio -ovdum > /dev/nrmt0<br />
done<br />
echo "\n$TYPE backup complete -- rewind tape"<br />
exit 0<br />
To recover a file:<br />
cpio -ivdum < /dev/tape<br />
i -in, v - verbose, d - directory<br />
u - unconditional copy old files over new<br />
m - modification time<br />
! dump<br />
"dump" only writes from device to device Berkeley UNIX - not available on vanilla System V.<br />
dump 0 /dev/rdsk/0s5 # sent to default tape<br />
dump 9udf 6250 /dev/rmt1 /dev/rdsk/Os6<br />
A full dump, level 0; An incremental dump, level 9,<br />
u - update note in /etc/dumpdates,<br />
d - density 6250,<br />
f - device file /dev/rmt1<br />
# friendly dump backup<br />
TAPE=/dev/rmt1<br />
DISK=/dev/rdsk/Os5<br />
:<br />
if [ $# -ne 1 ]; <strong>the</strong>n<br />
echo "usage: backup [daily] [weekly]"<br />
exit 1<br />
fi<br />
case $1 in<br />
daily)<br />
dump 9udf 6250 $TAPE $DISK ;;<br />
weekly)<br />
dump 0udf 6250 $TAPE $DISK ;;<br />
*)<br />
echo "usage: backup [daily] [weekly]"<br />
exit 2<br />
esac<br />
exit 0<br />
! restore<br />
interactive mode - BSD version<br />
fete/restore -if /dev/rmt1<br />
restore> cd home/bill/bin<br />
restore> ls<br />
ar bart chkdsk<br />
restore> add bart<br />
restore>extract<br />
...<br />
backup & restore - SVR4 version<br />
! fine & free<br />
fast incremental backup - no catalog, listing or index<br />
fine -m -7 /dev/dsk/0s5 /dev/rmt0<br />
fast recover: p - pathname, 21 - inode, name - adm<br />
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