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

Log the specified file.

-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 example, ``-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.