freebsd-skq/usr.bin/logger/logger.1
imp 7e6cabd06e Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00

172 lines
4.3 KiB
Groff

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.\" @(#)logger.1 8.1 (Berkeley) 6/6/93
.\" $FreeBSD$
.\"
.Dd December 23, 2016
.Dt LOGGER 1
.Os
.Sh NAME
.Nm logger
.Nd make entries in the system log
.Sh SYNOPSIS
.Nm
.Op Fl 46Ais
.Op Fl f Ar file
.Op Fl h Ar host
.Op Fl P Ar port
.Op Fl p Ar pri
.Op Fl S Ar addr Ns \&: Ns Ar port
.Op Fl t Ar tag
.Op Ar message ...
.Sh DESCRIPTION
The
.Nm
utility provides a shell command interface to the
.Xr syslog 3
system log module.
.Pp
The following options are available:
.Bl -tag -width indent
.It Fl 4
Force
.Nm
to use IPv4 addresses only.
.It Fl 6
Force
.Nm
to use IPv6 addresses only.
.It Fl A
By default,
.Nm
tries to send the message to only one address,
even if the host has more than one A or AAAA record.
If this option is specified,
.Nm
tries to send the message to all addresses.
.It Fl i
Log the process id of the logger process
with each line.
.It Fl s
Log the message to standard error, as well as the system log.
.It Fl f Ar file
Read the contents of the specified file into syslog.
This option is ignored when a message is also specified.
.It Fl h Ar host
Send the message to the remote system
.Ar host
instead of logging it locally.
Note that
.Nm
currently supports
.Li AF_INET
.Pq IPv4 ,
.Li AF_INET6
.Pq IPv6 ,
and
.Li AF_LOCAL
.Pq Unix-domain socket
address families.
The following address formats are valid in
.Ar host :
.Pp
.Bl -tag -width "AF_LOCAL" -compact
.It Li AF_INET
192.168.2.1
.It Li AF_INET6
2001:db8::1
.It Li AF_LOCAL
.Pa /var/run/log
.El
.It Fl P Ar port
Send the message to the specified
.Ar port
number on a remote system,
which can be specified as a service name
or as a decimal number.
The default is
.Dq Li syslog .
If an unknown service name is used,
.Nm
prints a warning and falls back to port 514.
.It Fl p Ar pri
Enter the message with the specified priority.
The priority may be specified numerically or as a
.Li facility.level
pair.
For example,
.Dq Fl p Li local3.info
logs the message(s) as
.Ar info Ns rmational
level in the
.Ar local3
facility.
The default is
.Dq Li user.notice .
.It Fl S Ar addr Ns \&: Ns Ar port
Specify source address and/or source port when using
.Fl h
option.
The same address will be used for all of the remote addresses
when
.Fl A
flag is enabled.
Note that a numeric IPv6 address in
.Ar addr
must be enclosed with
.Dq \&[
and
.Dq \&] .
.It Fl t Ar tag
Mark every line in the log with the specified
.Ar tag
rather than the default of current login name.
.It Ar message
Write the message to log; if not specified, and the
.Fl f
flag is not
provided, standard input is logged.
.El
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
.Bd -literal -offset indent -compact
logger System rebooted
logger \-p local0.notice \-t HOSTIDM \-f /dev/idmc
.Ed
.Sh SEE ALSO
.Xr syslog 3 ,
.Xr syslogd 8
.Sh STANDARDS
The
.Nm
command is expected to be
.St -p1003.2
compatible.