1.\" Copyright (c) 1983, 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 4. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" @(#)logger.1 8.1 (Berkeley) 6/6/93 29.\" $FreeBSD$ 30.\" 31.Dd December 23, 2016 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 S Ar addr Ns \&: Ns Ar port 45.Op Fl t Ar tag 46.Op Ar message ... 47.Sh DESCRIPTION 48The 49.Nm 50utility provides a shell command interface to the 51.Xr syslog 3 52system log module. 53.Pp 54The following options are available: 55.Bl -tag -width indent 56.It Fl 4 57Force 58.Nm 59to use IPv4 addresses only. 60.It Fl 6 61Force 62.Nm 63to use IPv6 addresses only. 64.It Fl A 65By default, 66.Nm 67tries to send the message to only one address, 68even if the host has more than one A or AAAA record. 69If this option is specified, 70.Nm 71tries to send the message to all addresses. 72.It Fl i 73Log the process id of the logger process 74with each line. 75.It Fl s 76Log the message to standard error, as well as the system log. 77.It Fl f Ar file 78Read the contents of the specified file into syslog. 79This option is ignored when a message is also specified. 80.It Fl h Ar host 81Send the message to the remote system 82.Ar host 83instead of logging it locally. 84Note that 85.Nm 86currently supports 87.Li AF_INET 88.Pq IPv4 , 89.Li AF_INET6 90.Pq IPv6 , 91and 92.Li AF_LOCAL 93.Pq Unix-domain socket 94address families. 95The following address formats are valid in 96.Ar host : 97.Pp 98.Bl -tag -width "AF_LOCAL" -compact 99.It Li AF_INET 100192.168.2.1 101.It Li AF_INET6 1022001:db8::1 103.It Li AF_LOCAL 104.Pa /var/run/log 105.El 106.It Fl P Ar port 107Send the message to the specified 108.Ar port 109number on a remote system, 110which can be specified as a service name 111or as a decimal number. 112The default is 113.Dq Li syslog . 114If an unknown service name is used, 115.Nm 116prints a warning and falls back to port 514. 117.It Fl p Ar pri 118Enter the message with the specified priority. 119The priority may be specified numerically or as a 120.Li facility.level 121pair. 122For example, 123.Dq Fl p Li local3.info 124logs the message(s) as 125.Ar info Ns rmational 126level in the 127.Ar local3 128facility. 129The default is 130.Dq Li user.notice . 131.It Fl S Ar addr Ns \&: Ns Ar port 132Specify source address and/or source port when using 133.Fl h 134option. 135The same address will be used for all of the remote addresses 136when 137.Fl A 138flag is enabled. 139Note that a numeric IPv6 address in 140.Ar addr 141must be enclosed with 142.Dq \&[ 143and 144.Dq \&] . 145.It Fl t Ar tag 146Mark every line in the log with the specified 147.Ar tag 148rather than the default of current login name. 149.It Ar message 150Write the message to log; if not specified, and the 151.Fl f 152flag is not 153provided, standard input is logged. 154.El 155.Sh EXIT STATUS 156.Ex -std 157.Sh EXAMPLES 158.Bd -literal -offset indent -compact 159logger System rebooted 160 161logger \-p local0.notice \-t HOSTIDM \-f /dev/idmc 162.Ed 163.Sh SEE ALSO 164.Xr syslog 3 , 165.Xr syslogd 8 166.Sh STANDARDS 167The 168.Nm 169command is expected to be 170.St -p1003.2 171compatible. 172