LOGGER(1) User Commands LOGGER(1)


NAME


logger - add entries to the system log

SYNOPSIS


logger [-i] [-f file] [-p priority] [-t tag] [message] ...


DESCRIPTION


The logger command provides a method for adding one-line entries to the
system log file from the command line. One or more message arguments can
be given on the command line, in which case each is logged immediately.
If this is unspecified, either the file indicated with -f or the standard
input is added to the log. Otherwise, a file can be specified, in which
case each line in the file is logged. If neither is specified, logger
reads and logs messages on a line-by-line basis from the standard input.

OPTIONS


The following options are supported:

-ffile
Uses the contents of file as the message to log.


-i
Logs the process ID of the logger process with each line.


-ppriority
Enters the message with the specified priority. The message
priority can be specified numerically, or as a
facility.level pair. For example, `-p local3.info' assigns
the message priority to the info level in the local3
facility. The default priority is user.notice.


-ttag
Marks each line added to the log with the specified tag.


OPERANDS


The following operand is supported:

message
One of the string arguments whose contents are concatenated
together, in the order specified, separated by single space
characters.


EXAMPLES


Example 1: Examples of the logger command




The following example:


example% logger System rebooted


logs the message `System rebooted' to the default priority level notice
to be treated by syslogd as are other messages to the facility user.


The next example:


example% logger -p local0.notice -t HOSTIDM -f /dev/idmc


reads from the file /dev/idmc and logs each line in that file as a
message with the tag `HOSTIDM' at priority level notice to be treated by
syslogd as are other messages to the facility local0.


ENVIRONMENT VARIABLES


See environ(5) for descriptions of the following environment variables
that affect the execution of logger: LANG, LC_ALL, LC_CTYPE, LC_MESSAGES,
and NLSPATH.

EXIT STATUS


The following exit values are returned:

0
Successful completion.


>0
An error occurred.


ATTRIBUTES


See attributes(5) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+

SEE ALSO


mailx(1), write(1), syslogd(1M), syslog(3C), attributes(5), environ(5),
standards(5)


February 1, 1995 LOGGER(1)