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(am-utils.info)Selectors

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Selectors
---------

   Selectors are used to control the use of a location.  It is possible
to share a mount map between many machines in such a way that filesystem
location, architecture and operating system differences are hidden from
the users.  A selector of the form `arch==sun3;os==sunos4' would only
apply on Sun-3s running SunOS 4.x.

   Selectors can be negated by using `!=' instead of `=='.  For example
to select a location on all non-Vax machines the selector `arch!=vax'
would be used.

   Selectors are evaluated left to right.  If a selector fails then that
location is ignored.  Thus the selectors form a conjunction and the
locations form a disjunction.  If all the locations are ignored or
otherwise fail then Amd uses the "error" filesystem (Note: Error
Filesystem).  This is equivalent to having a location `type:=error'
at the end of each mount-map entry.

   The default value of many of the selectors listed here can be
overridden by an Amd command line switch or in an Amd configuration
file.  Note: Amd Configuration File.

   The following selectors are currently implemented.

arch Selector Variable

autodir Selector Variable

byte Selector Variable

cluster Selector Variable

domain Selector Variable

dollar Selector Variable

host Selector Variable

hostd Selector Variable

karch Selector Variable

os Selector Variable

osver Selector Variable

full_os Selector Variable

vendor Selector Variable

key Selector Variable

map Selector Variable

netnumber Selector Variable

network Selector Variable

path Selector Variable

wire Selector Variable

uid Selector Variable

gid Selector Variable

exists Selector Function

false Selector Function

netgrp Selector Function

netgrpd Selector Function

in_network Selector Function

true Selector Function