LOGGER(1) BSD General Commands Manual LOGGER(1)
NAME
logger -- make entries in the system log
SYNOPSIS
logger [-46Ais] [-f file] [-h host] [-P port] [-p pri] [-t tag] [message ...]
DESCRIPTION
The logger utility provides a shell command interface to the syslog(3) system log module.
The following options are available:
-4 Force logger to use IPv4 addresses only.
-6 Force logger to use IPv6 addresses only.
-A By default, logger 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, logger tries to send the message to all addresses.
-i Log the process id of the logger process with each line.
-s Log the message to standard error, as well as the system log.
-f file
Read the contents of the specified file into syslog.
-h host
Send the message to the remote system host instead of logging it locally.
-P port
Send the message to the specified port number on a remote system, which can be specified as a service name or as a decimal number.
The default is ``syslog''. If an unknown service name is used, logger prints a warning and falls back to port 514.
-p pri Enter the message with the specified priority. The priority may be specified numerically or as a ``facility.level'' pair. For exam-
ple, ``-p local3.info'' logs the message(s) as informational level in the local3 facility. The default is ``user.notice.''
-t tag Mark every line in the log with the specified tag rather than the default of current login name.
message
Write the message to log; if not specified, and the -f flag is not provided, standard input is logged.
EXIT STATUS
The logger utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
logger System rebooted
logger -p local0.notice -t HOSTIDM -f /dev/idmc
SEE ALSO
syslog(3), syslogd(8)
STANDARDS
The logger command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
BSD
March 4, 2014 BSD
