amq - automounter query tool
amq [ -fimpqsvwHTU ] [ -h hostname ] [ -l
  log_file ] [ -x log_options ] [ -D
  debug_options ] [ -P program_number ] [[ -u ]
  directory ... ]
Amq provides a simple way of determining the current state of amd
  program. Communication is by RPC. Three modes of operation are
  supported by the current protocol. By default a list of mount points and
  auto-mounted filesystems is output. An alternative host can be specified using
  the -h option.
If directory names are given, as output by default, then
    per-filesystem information is displayed.
  - -f
- Ask the automounter to flush the internal caches and reload all the maps.
    
  
- -h hostname
- Specify an alternate host to query. By default the local host is used. In
      an HP-UX cluster, the root server is queried by default,
      since that is the system on which the automounter is normally run.
    
  
- -i
- Print information about the mount maps.
    
  
- -l log_file
- Tell amd to use log_file as the log file name. For security
      reasons, this must be the same log file which amd used when started. This
      option is therefore only useful to refresh amd's open file handle on the
      log file, so that it can be rotated and compressed via daily cron jobs.
    
  
- -m
- Ask the automounter to provide a list of mounted filesystems, including
      the number of references to each filesystem and any error which occurred
      while mounting.
    
  
- -p
- Return the process ID of the remote or locally running amd. Useful when
      you need to send a signal to the local amd process, and would rather not
      have to search through the process table. This option is used in the
      ctl-amd script.
    
  
- -q
- Suppress error messages produced when attempting synchronous unmounts with
      the -u option.
    
  
- -s
- Ask the automounter to provide system-wide mount statistics.
    
  
- -u
- Ask the automounter to unmount the filesystems named in directory
      instead of providing information about them. Unmounts are requested, not
      forced. They merely cause the mounted filesystem to timeout, which will be
      picked up by amd's main scheduler thus causing the normal timeout
      action to be taken. If the -u option is repeated, amq will
      attempt to unmount the file system synchronously by waiting until the
      timeout action is taken and returning an error if the unmount fails. Any
      error messages produced may be suppressed with the -q option.
    
  
- -v
- Ask the automounter for its version information. This is a subset of the
      information output by amd's -v option.
    
  
- -w
- Translate a full pathname as returned by getcwd(3) into a short
      Amd pathname that goes through its mount points. This option
      requires that Amd is running.
    
  
- -x log_options
- Ask the automounter to use the logging options specified in
      log_options from now on. Note that the "fatal" and
      "error" options cannot be turned off.
    
  
- -D debug_options
- Ask the automounter to use the debugging options specified in
      debug_options from now on.
    
  
- -H
- Display short usage message.
    
  
- -P program_number
- Contact an alternate running amd that had registered itself on a different
      RPC program_number and apply all other operations to that instance
      of the automounter. This is useful when you run multiple copies of amd,
      and need to manage each one separately. If not specified, amq will use the
      default program number for amd, 300019. For security reasons, the only
      alternate program numbers amd can use range from 300019 to 300029,
      inclusive.
    
  
- -T
- Contact amd using the TCP transport only. Normally amq will
      try TCP, and if that failed, will try UDP.
    
  
- -U
- Contact amd using UDP (connectionless) transport only. Normally
      amq will try TCP, and if that failed, will try UDP.
    
  
  - amq.x
- RPC protocol description.
    
  
Amq uses a Sun registered RPC program number (300019
  decimal) which may not be in the /etc/rpc database.If the TCP wrappers library is available, and the
    use_tcpwrappers global amd.conf option is set to ``yes'', then
    amd will verify that the host running amq is authorized to
    connect. The amd service name must used in the
    /etc/hosts.allow and /etc/hosts.deny files. For example, to
    allow only localhost to connect to amd, add this line to
    /etc/hosts.allow:
amd: localhost
and this line to /etc/hosts.deny:
amd: ALL
amd(8), amd.conf(5), hosts_access(5).
``am-utils'' info(1) entry.
Linux NFS and Automounter Administration by Erez Zadok,
    ISBN 0-7821-2739-8, (Sybex, 2001).
http://www.am-utils.org
Amd - The 4.4 BSD Automounter
Jan-Simon Pendry <jsp@doc.ic.ac.uk>, Department of Computing, Imperial
  College, London, UK.
Erez Zadok <ezk@cs.sunysb.edu>, Computer Science Department,
    Stony Brook University, Stony Brook, New York, USA.
Other authors and contributors to am-utils are listed in the
    AUTHORS file distributed with am-utils.