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/usr.bin/logger/logger.1

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 28.\"	@(#)logger.1	8.1 (Berkeley) 6/6/93
 29.\" $FreeBSD$
 30.\"
 31.Dd August 2, 2006
 32.Dt LOGGER 1
 33.Os
 34.Sh NAME
 35.Nm logger
 36.Nd make entries in the system log
 37.Sh SYNOPSIS
 38.Nm
 39.Op Fl 46Ais
 40.Op Fl f Ar file
 41.Op Fl h Ar host
 42.Op Fl P Ar port
 43.Op Fl p Ar pri
 44.Op Fl t Ar tag
 45.Op Ar message ...
 46.Sh DESCRIPTION
 47The
 48.Nm
 49utility provides a shell command interface to the
 50.Xr syslog 3
 51system log module.
 52.Pp
 53The following options are available:
 54.Bl -tag -width indent
 55.It Fl 4
 56Force
 57.Nm
 58to use IPv4 addresses only.
 59.It Fl 6
 60Force
 61.Nm
 62to use IPv6 addresses only.
 63.It Fl A
 64By default,
 65.Nm
 66tries to send the message to only one address,
 67even if the host has more than one A or AAAA record.
 68If this option is specified,
 69.Nm
 70tries to send the message to all addresses.
 71.It Fl i
 72Log the process id of the logger process
 73with each line.
 74.It Fl s
 75Log the message to standard error, as well as the system log.
 76.It Fl f Ar file
 77Log the specified file.
 78.It Fl h Ar host
 79Send the message to the remote system
 80.Ar host
 81instead of logging it locally.
 82.It Fl P Ar port
 83Send the message to the specified
 84.Ar port
 85number on a remote system,
 86which can be specified as a service name
 87or as a decimal number.
 88The default is
 89.Dq Li syslog .
 90If an unknown service name is used,
 91.Nm
 92prints a warning and falls back to port 514.
 93.It Fl p Ar pri
 94Enter the message with the specified priority.
 95The priority may be specified numerically or as a ``facility.level''
 96pair.
 97For example, ``\-p local3.info'' logs the message(s) as
 98.Ar info Ns rmational
 99level in the
100.Ar local3
101facility.
102The default is ``user.notice.''
103.It Fl t Ar tag
104Mark every line in the log with the specified
105.Ar tag
106rather than the default of current login name.
107.It Ar message
108Write the message to log; if not specified, and the
109.Fl f
110flag is not
111provided, standard input is logged.
112.El
113.Sh EXIT STATUS
114.Ex -std
115.Sh EXAMPLES
116.Bd -literal -offset indent -compact
117logger System rebooted
118
119logger \-p local0.notice \-t HOSTIDM \-f /dev/idmc
120.Ed
121.Sh SEE ALSO
122.Xr syslog 3 ,
123.Xr syslogd 8
124.Sh STANDARDS
125The
126.Nm
127command is expected to be
128.St -p1003.2
129compatible.