Make entries in the system log

Command Line

logger [-is] [-f file] [-p pri] [-t tag] [message ...]

Description

Logger provides a command interface to the syslog system log module.

Options

-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.

-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.

message

Write the message to log; if not specified, and the -f flag is not provided, standard input is logged.

The logger utility exits 0 on success, and >0 if an error occurs.

Example

logger -t SYSTEM 'rebooting INtime'