Provided by: amanda-common_3.2.1-1.1_i386
amanda-match - Common Amanda Match Expression
Several Amanda commands allow the user to specify dumps using "match
expressions". This manual page describes the syntax of these
In some places, only certain match expressions are allowed. However,
several commands take a dump specification ("dumpspec") consisting of a
sequence of several expressions intended to match particular dumps in
the catalog. Other applications take a DLE specification which
indicates a set of DLEs to be operated on. These formats are described
HOST & DISK EXPRESSIONS
The hosts and disks match by word. Each word is a glob expression, and
words are separated by the character '.' for host expressions and '/'
for disk expressions. You can anchor the expression on the left with a
'^' or on the right with a '$'. The matcher is case insensitive for
hosts but case sensitive for disks. A match succeeds if all words in
the expression match contiguous words in the host or disk.
If the disk is a UNC ("\\windows\share") then all '\' are converted to
'/' before the match. Using '\' is complicated because of the extra
quoting required by the shell and amanda. It's easier to use '/'
because it requires less quoting ("//windows/share")
The special characters follow. Note that the shell interprets some of
these characters, so when used on the command line, they must be
escaped appropriately for the shell.
word separator for a host
word separator for a disk
word separator for a UNC disk
anchor at left of word
anchor at right of word
match exactly one character except the separator
match zero or more characters except the separator
match zero or more characters including the separator
match exactly one of the characters enclosed by the brackets.
match exactly one character that is not enclosed by the brackets.
Will match hosta, foo.hosta.org, and hoSTA.dOMAIna.ORG but not
Will match host but not hosta.
Will match hosta and hostb, but not host or hostabc.
Will match hoina but not ho.aina.org.
Will match hoina and ho.aina.org.
Will match hosta but not foo.hosta.org.
Will match /dev/sda1 and /dev/sda12.
Will match the disk opt but not the host opt.
(note dots:) .opt.
Will match the host opt but not the disk opt.
Will match the disk / but no other disk.
Will match the disks /usr and /usr/local.
Will match the disks /usr but not /usr/local.
Will match the disks \\windows1\share and \\windows2\share.
Will match the disks \\windows\share1 and \\windows\share2.
Will match the disk \\windows\share.
A datestamp expression is either a prefix of the datestamp, or a range
expression (separated by '-') matching several prefixes. A leading ^ is
removed, while arailing $ will force an exact match.
match all dates beginning with 20001212, 20001213 or 20001214
same as previous
match all dates between 20001212 and 20001224
match all dates that start with 2000121 (20001210-20001219)
match all dates that start with 2 (20000101-29991231)
match all dates between 20000101-20101231
match only 200010
Level expressions are either prefix matches e.g., "1", which matches
"1", "10", and "123", absolute matches e.g., "3$" which only matches
"3", or a range e.g., "3-5" which only matches levels 3, 4, and 5.
A dump specification is used to select one or more dumps from the
catalog. It consists of a sequence of match expressions in the order
host, disk, datestamp, and level. Note that some commands do not take a
level argument, out of historical accident. Note, too, that the
datestamp expression matches the time that the dump was made on the
Amanda client, rather than the date it was moved to tape.
amtool MyConfig ^vpdesktop$
all dumps of host "vpdesktop"
amtool MyConfig '*' /var/stage
All dumps of /var/stage on any host
amtool MyConfig www1 /var/www '*' www2 /var/www '*'
All dumps of /var/www on www1 and www2 (assuming amtool does not
require a level argument)
A DLE specification is used to select one or more DLEs. It consists of
a sequence of match expressions. The first must be a host, and
subsequent expressions will be experimentally matched against both
hosts and disks in the disklist(5), preferring hosts. This dynamic
matching process can lead to odd behavior in extreme cases (e.g., where
a disk and a host have the same name), but for most uses does exactly
what is expected.
amtool MyConfig vpdesktop /home/anderson
/home/anderson on host vpdesktop
amtool MyConfig '*' ^/etc '*' ^/var
All DLEs matching ^/var or ^/etc on any host
amtool MyConfig web1 www web2 www
If no host matches "www", all DLEs matching www on hosts web1 and
web2. If a host matches "www", then all DLEs on hosts www, web1,
amanda(8), amanda(8), amfetchdump(8), amrestore(8), amadmin(8),
amvault(8), amflush(8), amdump(8)
The Amanda Wiki: : http://wiki.zmanda.com/
Dustin J. Mitchell <email@example.com>
Zmanda, Inc. (http://www.zmanda.com)