LOGGER(1)							   User Commands							 LOGGER(1)

NAME

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

SYNOPSIS

     logger [-dhisV] [-f file] [-n server] [-P port] [-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:

     -d, --udp
	      Use datagram (UDP) instead of the default stream connection (TCP).

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

     -f, --file file
	      Log the contents of the specified file.  This option cannot be combined with a command-line message.

     -h, --help
	      Display a help text and exit.

     -n, --server server
	      Write to the specified remote syslog server using UDP instead of to the builtin syslog routines.

     -P, --port port
	      Use the specified UDP port.  The default port number is 514.

     -p, --priority priority
	      Enter the message into the log with the specified priority.  The priority may be specified numerically or as a facility.level pair.
	      For example, -p local3.info logs the message as informational in the local3 facility.  The default is user.notice.

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

     -t, --tag tag
	      Mark every line to be logged with the specified tag.

     -u, --socket socket
	      Write to the specified socket instead of to the builtin syslog routines.

     -V, --version
	      Display version information and exit.

     --       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 (can't be generated from
     user process), 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

	   logger -n loghost.example.com System rebooted

SEE ALSO

     syslog(3), syslogd(8)

STANDARDS

     The logger command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.

AVAILABILITY

     The logger command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							  August 2011								util-linux