1.\" $OpenBSD: logger.1,v 1.22 2019/06/17 00:23:03 guenther Exp $ 2.\" $NetBSD: logger.1,v 1.4 1994/12/22 06:26:59 jtc Exp $ 3.\" 4.\" Copyright (c) 1983, 1990, 1993 5.\" The Regents of the University of California. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. Neither the name of the University nor the names of its contributors 16.\" may be used to endorse or promote products derived from this software 17.\" without specific prior written permission. 18.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29.\" SUCH DAMAGE. 30.\" 31.\" @(#)logger.1 8.1 (Berkeley) 6/6/93 32.\" 33.Dd $Mdocdate: June 17 2019 $ 34.Dt LOGGER 1 35.Os 36.Sh NAME 37.Nm logger 38.Nd make entries in the system log 39.Sh SYNOPSIS 40.Nm logger 41.Op Fl cis 42.Op Fl f Ar file 43.Op Fl p Ar pri 44.Op Fl t Ar tag 45.Op Ar message ... 46.Sh DESCRIPTION 47The 48.Nm logger 49utility provides a shell command interface to the 50.Xr syslog 3 51system log module. 52.Pp 53The options are as follows: 54.Bl -tag -width "-f file" 55.It Fl c 56If unable to pass the message to 57.Xr syslogd 8 , 58attempt to write the message to the console. 59.It Fl f Ar file 60Read from the specified 61.Ar file . 62.It Fl i 63Log the process ID of the logger process 64with each line. 65.It Fl p Ar pri 66Enter the message with the specified priority. 67The priority may be specified numerically or as a 68.Dq facility.level 69pair. 70For example, 71.Dq -p local3.info 72logs the message(s) as 73.Ar info Ns rmational 74level in the 75.Ar local3 76facility. 77The default is 78.Dq user.notice . 79.It Fl s 80Log the message to standard error, as well as the system log. 81.It Fl t Ar tag 82Mark every line in the log with the specified 83.Ar tag . 84.It Ar message 85Write the message to log; if not specified, and the 86.Fl f 87flag is not 88provided, standard input is logged. 89.El 90.Sh EXIT STATUS 91.Ex -std logger 92.Sh EXAMPLES 93.Bd -literal -offset indent 94$ logger System rebooted 95 96$ logger -p local0.notice -t HOSTIDM -f /dev/idmc 97.Ed 98.Sh SEE ALSO 99.Xr syslog 3 , 100.Xr syslogd 8 101.Sh STANDARDS 102The 103.Nm 104utility is compliant with the 105.St -p1003.1-2008 106specification. 107.Pp 108The flags 109.Op Fl cfipst 110are extensions to that specification. 111