NAME
   logger - a shell command interface to the syslog(3) system log module

SYNOPSIS
   logger [-isd] [-f file] [-p pri] [-t tag] [-u socket] [message ...]

DESCRIPTION
   Logger makes entries in the system log. It provides a shell command
   interface to the syslog(3) system log module.

   Options:

   -i    Log the process id of the logger process with each line.

   -s    Log the message to standard error, as well as the system log.

   -f file Log the specified file.

   -p pri  Enter the message with the specified priority. The priority may
    be specified numerically or as a ``facility.level'' pair.  For
    example, ``-p local3.info'' logs the message(s) as informational
    level in the local3 facility. The default is ``user.notice.''

   -t tag  Mark every line in the log with the specified tag.

   -u sock Write to socket as specified with socket instead of builtin sys-
    log routines.

   -d    Use a datagram instead of a stream connection to this socket.

   --    End the argument list. This is to allow the message to start
    with a hyphen (-).

   message Write the message to log; if not specified, and the -f flag is
    not provided, standard input is logged.

   The logger utility exits 0 on success, and >0 if an error occurs.

   Valid facility names are: auth, authpriv (for security information of a
   sensitive nature), cron, daemon, ftp, kern, lpr, mail, news, security
   (deprecated synonym for auth), syslog, user, uucp, and local0 to local7,
   inclusive.

   Valid level names are): alert, crit, debug, emerg, err, error (deprecated
   synonym for err), info, notice, panic (deprecated synonym for emerg),
   warning, warn (deprecated synonym for warning). For the priority order
   and intended purposes of these levels, see syslog(3).

EXAMPLES
   logger System rebooted

   logger -p local0.notice -t HOSTIDM -f /dev/idmc

SEE ALSO
   syslog(3), syslogd(8)

STANDARDS
   The logger command is expected to be IEEE Std 1003.2 (``POSIX.2'') com-
   patible.