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logger

Make entries in the system log (POSIX)


Note: If you aren't root, specify the full path: /usr/sbin/logger.

Syntax:

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

Runs on:

Neutrino

Options:

-f file
Log the specified file.
-i
Log the process ID of the logger process with each line.
-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.
-s
Log the message to standard error, as well as the system log.
-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 isn't provided, standard input is logged.

Description:

The logger command provides a shell command interface to the syslogd daemon.

Examples:

Log the message “System rebooted”:

logger System rebooted

Log the file /tmp/log tagging each line with log:

logger -f /tmp/log -t log

Files:

/usr/sbin/logger
The logger utility is located in the /usr/sbin/ directory, which is not included in the default PATH of non-root users. If you are not root, specify the full path.

Environment variables:

SYSLOG
When defined, SYSLOG specifies which node syslogd is running on. By default, the local node is assumed.

Exit status:

0
Successful completion.
>0
An error occurred.

Note: Because the syslog API doesn't return error codes, only argument errors can be detected.

See also:

syslogd

syslog() in the Library Reference


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