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28 .\" @(#)logger.1 8.1 (Berkeley) 6/6/93
36 .Nd make entries in the system log
45 .Op Fl S Ar addr Ns \&: Ns Ar port
51 utility provides a shell command interface to the
55 The following options are available:
56 .Bl -tag -width indent
60 to use IPv4 addresses only.
64 to use IPv6 addresses only.
68 tries to send the message to only one address,
69 even if the host has more than one A or AAAA record.
70 If this option is specified,
72 tries to send the message to all addresses.
74 Log the process id of the logger process
76 This flag is ignored and the process id is always logged.
80 Log the message to standard error, as well as the system log.
82 Read the contents of the specified file into syslog.
83 This option is ignored when a message is also specified.
85 Set the hostname in the header of the message to specified value.
86 If not specified, host part of
90 Send the message to the remote system
92 instead of logging it locally.
102 .Pq Unix-domain socket
104 The following address formats are valid in
107 .Bl -tag -width "AF_LOCAL" -compact
116 Send the message to the specified
118 number on a remote system,
119 which can be specified as a service name
120 or as a decimal number.
123 If an unknown service name is used,
125 prints a warning and falls back to port 514.
127 Enter the message with the specified priority.
128 The priority may be specified numerically or as a
132 .Dq Fl p Li local3.info
133 logs the message(s) as
134 .Ar info Ns rmational
140 .It Fl S Ar addr Ns \&: Ns Ar port
141 Specify source address and/or source port when using
144 The same address will be used for all of the remote addresses
148 Note that a numeric IPv6 address in
150 must be enclosed with
155 Mark every line in the log with the specified
157 rather than the default of current login name.
160 to insert specific decimal process id instead of id of
163 Write the message to log; if not specified, and the
166 provided, standard input is logged.
171 .Bd -literal -offset indent -compact
172 logger System rebooted
174 logger \-p local0.notice \-t HOSTIDM \-f /dev/idmc
182 command is expected to be