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acpid(8)                                                              acpid(8)

NAME
       acpid - Advanced Configuration and Power Interface event daemon

SYNOPSIS
       acpid [options]

DESCRIPTION
       acpid  is designed to notify user-space programs of ACPI events.  acpid
       should be started during the system boot, and will run as a  background
       process,  by default.  It will open an events file (/proc/acpi/event by
       default) and attempt to read whole lines.  When a line is received  (an
       event),  acpid will examine a list of rules, and execute the rules that
       match the event.  acpid will ignore all incoming ACPI events if a  lock
       file exists (/var/lock/acpid by default).

       Rules  are defined by simple configuration files.  acpid will look in a
       configuration directory (/etc/acpi/events by default),  and  parse  all
       regular files that do not begin with a period ('.') or end with a tilde
       (~).  Each file must define two things: an event and  an  action.   Any
       blank  lines,  or  lines  where the first character is a hash ('#') are
       ignored.  Extraneous lines are flagged as warnings, but are not  fatal.
       Each  line  has  three  tokens:  the key, a literal equal sign, and the
       value.  The key can be up to 63  characters,  and  is  case-insensitive
       (but  whitespace  matters).  The value can be up to 511 characters, and
       is case and whitespace sensitive.

       The event value is a regular expression (see regcomp(3)), against which
       events are matched.

       The  action  value  is a commandline, which will be invoked via /bin/sh
       whenever an event matching the rule in question occurs.   The  command-
       line  may include shell-special characters, and they will be preserved.
       The only special characters in an action value are  "%"  escaped.   The
       string "%e" will be replaced by the literal text of the event for which
       the action was invoked.  This string may contain spaces, so the comman-
       dline must take care to quote the "%e" if it wants a single token.  The
       string "%%" will be replaced by a literal "%".  All other  "%"  escapes
       are reserved, and will cause a rule to not load.

       This  feature  allows  multiple  rules to be defined for the same event
       (though no ordering is guaranteed), as well as one rule to  be  defined
       for  multiple events.  To force acpid to reload the rule configuration,
       send it a SIGHUP.

       In addition to rule files, acpid also accepts  connections  on  a  UNIX
       domain  socket (/var/run/acpid.socket by default).  Any application may
       connect to this socket.  Once connected, acpid will send  the  text  of
       all  ACPI  events  to the client.  The client has the responsibility of
       filtering for messages about which it cares.  acpid will not close  the
       client socket except in the case of a SIGHUP or acpid exiting.

       acpid  will log all of its activities, as well as the stdout and stderr
       of any actions, to syslog.

       All the default files and directories can be changed  with  commandline
       options.

OPTIONS
       -c, --confdir directory
                   This  option changes the directory in which acpid looks for
                   rule configuration files.  Default is /etc/acpi/events.

       -C, --clientmax number
                   This option changes the maximum number of  non-root  socket
                   connections which can be made to the acpid socket.  Default
                   is 256.

       -d, --debug This option increases the acpid debug level by one.  If the
                   debug  level is non-zero, acpid will run in the foreground,
                   and will log to stderr, in addition to the regular  syslog.

       -e, --eventfile filename
                   This  option  changes the event file from which acpid reads
                   events.  Default is /proc/acpi/event.

       -f, --foreground
                   This option keeps acpid in the foreground by not forking at
                   startup.

       -l, --logevents
                   This option tells acpid to log information about all events
                   and actions.

       -L, --lockfile filename
                   This option changes the lock file used to stop  event  pro-
                   cessing.  Default is /var/lock/acpid.

       -g, --socketgroup groupname
                   This  option changes the group ownership of the UNIX domain
                   socket to which acpid publishes events.

       -m, --socketmode mode
                   This option changes the  permissions  of  the  UNIX  domain
                   socket to which acpid publishes events.  Default is 0666.

       -s, --socketfile filename
                   This  option  changes  the  name  of the UNIX domain socket
                   which acpid opens.  Default is /var/run/acpid.socket.

       -S, --nosocket filename
                   This option tells acpid not to open a UNIX  domain  socket.
                   This  overrides the -s option, and negates all other socket
                   options.

       -p, --pidfile filename
                   This option tells acpid to use the specified  file  as  its
                   pidfile.   If the file exists, it will be removed and over-
                   written.  Default is /var/run/acpid.pid.

       -v, --version
                   Print version information and exit.

       -h, --help  Show help and exit.

EXAMPLE
       This example - placed in /etc/acpi/events/power - will shut  down  your
       system if you press the power button.

       event=button/power.*
       action=/usr/local/sbin/power.sh "%e"

       The  script power.sh gets called and will see the complete event string
       as parameter $1.

DEPENDENCIES
       acpid should work on any linux kernel released since 2003.

FILES
       /proc/acpi/event
       /etc/acpi/
       /var/run/acpid.socket
       /var/run/acpid.pid
       /var/lock/acpid

BUGS
       There are no known bugs.  To file bug reports, see AUTHORS below.

SEE ALSO
       regcomp(3), sh(1), socket(2), connect(2)

AUTHORS
       Tim Hockin <thockin@hockin.org>

                                                                      acpid(8)
 

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Quelle: http://www.trinler.net/de/service/doc/linux/man.html?command=acpid
Gedruckt am: 14.12.2017 03:19 GMT+0100 (2017-12-14T03:19:27+01:00)