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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.
p Options: l -tag -width "messageXX" t 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
a /dev/console . t Fl d Ar sd Log this in the structured data (SD) field.
o .Ar sd has to be passed as one argument and will require careful quoting when used from the shell.
c t Fl f Ar file Log the specified file. t Fl i Log the process id of the logger process with each line .Dv ( LOG_PID ) . t Fl m Ar msgid The MSGID used for the message. t Fl n Open log file immediately .Dv ( LOG_NDELAY ) . t 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 . t Fl s Log the message to standard error, as well as the system log .Dv ( LOG_PERROR ) . t Fl t Ar tag Mark every line in the log with the specified .Ar tag . t 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 d -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 .