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\" @(#)logger.1 8.1 (Berkeley) 6/6/93
\"
Dd June 25, 2020
Dt LOGGER 1
Os
Sh NAME
Nm logger
Nd make entries in the system log
Sh SYNOPSIS
Nm
Op Fl cins
Op Fl d Ar SD
Op Fl f Ar file
Op Fl m Ar msgid
Op Fl p Ar pri
Op Fl t Ar tag
Op Ar message ...
Sh DESCRIPTION
Nm
provides a shell command interface to the
Xr syslog 3
system log module.
Pp
Options:
Bl -tag -width "messageXX"
It Fl c
Log to console as a fallback
Dv ( LOG_CONS ) :
if the message cannot be passed to
Xr syslogd 8 ,
the message is written to
Pa /dev/console .
It Fl d Ar sd
Log this in the structured data (SD) field.
Po
Ar sd
has to be passed as one argument and will require careful quoting when used from
the shell.
Pc
It Fl f Ar file
Log the specified file.
It Fl i
Log the process id of the logger process
with each line
Dv ( LOG_PID ) .
It Fl m Ar msgid
The MSGID used for the message.
It Fl n
Open log file immediately
Dv ( LOG_NDELAY ) .
It Fl p Ar pri
Enter the message with the specified priority.
The priority may be specified numerically or as a
Dq facility.level
pair.
For example,
Dq \-p local3.info
logs the message(s) as
Ar info Ns rmational
level in the
Ar local3
facility.
The default is
Dq user.notice .
It Fl s
Log the message to standard error, as well as the system log
Dv ( LOG_PERROR ) .
It Fl t Ar tag
Mark every line in the log with the specified
Ar tag .
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 logger
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
utility conforms to
St -p1003.2-92 .
