CentOS 7.0 - man page for logger (centos section 1)

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LOGGER(1)				  User Commands 				LOGGER(1)

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

SYNOPSIS
       logger [options] [message]

DESCRIPTION
       logger makes entries in the system log.	It provides a shell command interface to the sys-
       log(3) system log module.

OPTIONS
       -n, --server server
	      Write to the specified remote syslog server instead of to the builtin  syslog  rou-
	      tines.   Unless  --udp  or --tcp is specified the logger will first try to use UDP,
	      but if it fails a TCP connection is attempted.

       -d, --udp
	      Use datagram (UDP) only.	By default the connection is tried to syslog port defined
	      in /etc/services, which is often 514.

       -T, --tcp
	      Use  stream  (TCP)  only.   By  default the connection is tried to syslog-conn port
	      defined in /etc/services, which is often 601.

       -P, --port port
	      Use the specified port.

       -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 com-
	      mand-line message.

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

       -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,  stan-
	      dard 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  syn-
       onym for warning).  For the priority order and intended purposes of these levels, see sys-
       log(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  Linux  Kernel
       Archive <ftp://ftp.kernel.org/pub/linux/utils/util-linux/>.

util-linux				    April 2013					LOGGER(1)


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