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logger(1)

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 immedi‐
       ately. 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 stan‐
       dard 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  mes‐
                     sage  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 mes‐
       sage 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(7) for descriptions of the following environment variables
       that affect the execution of logger: LANG,  LC_ALL,  LC_CTYPE,  LC_MES‐
       SAGES, and NLSPATH.

EXIT STATUS
       The following exit values are returned:

       0     Successful completion.


       >0    An error occurred.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Availabilitysystem/core-os _ Interface StabilityCommit‐
       ted _ StandardSee standards(7).


SEE ALSO
       mailx(1),   write(1),   syslog(3C),  attributes(7),  environ(7),  stan‐
       dards(7), syslogd(8)



Oracle Solaris 11.4               1 Feb 1995                         logger(1)
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