LOGGER linux command manual

LOGGER(1)           BSD General Commands Manual                LOGGER(1)

NAME
     logger - a shell command interface to the syslog(3) system log module

SYNOPSIS
     logger [-isd] [-f file] [-p pri] [-t tag] [-u socket] [message ...]

DESCRIPTION
     Logger makes entries in the system log.  It provides a shell command
     interface to the syslog(3) 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.

     -u sock  Write to socket as specified with socket instead of builtin
              syslog routines.

     -d       Use a datagram instead of a stream connection to this socket.

     --       End the argument list. This is to allow the message to start
              with a hyphen (-).

     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.

     Valid facility names are: auth, authpriv (for security information of a
     sensitive nature), cron, daemon, ftp, kern, lpr, mail, news, security
     (deprecated synonym for auth), syslog, user, uucp, and local0 to local7,
     inclusive.

     Valid level names are): alert, crit, debug, emerg, err, error (depre-
     cated synonym for err), info, notice, panic (deprecated synonym for
     emerg), warning, warn (deprecated synonym for warning).  For the prior-
     ity order and intended purposes of these levels, see syslog(3).

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") compat-
     ible.

4.3 Berkeley Distribution        June 6, 1993       4.3 Berkeley Distribution