LOGGER(1) BSD General Commands Manual LOGGER(1)
NAME
logger -- a shell command interface to the syslog(2,3,5,3 Sys::Syslog)(3) system log module
SYNOPSIS
logger [-isd] [-f file(1,n)] [-p pri] [-t tag] [-u socket(2,7,n)] [message ...]
DESCRIPTION
Logger makes entries in(1,8) the system log. It provides a shell command
interface to the syslog(2,3,5,3 Sys::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(8,n), as well as the system log.
-f file(1,n) 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 info(1,5,n)rmational
level in(1,8) the local3 facility. The default is ``user.notice.''
-t tag Mark every line in(1,8) the log with the specified tag.
-u sock Write to socket(2,7,n) as specified with socket(2,7,n) instead of builtin sys-
log 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(3,n) not specified, and the -f flag is
not provided, standard input is logged.
The logger utility exits 0 on success, and >0 if(3,n) an error(8,n) occurs.
Valid facility names are: auth, authpriv (for security information of a
sensitive nature), cron, daemon, ftp, kern, lpr, mail(1,8), news, security
(deprecated synonym for auth), syslog(2,3,5,3 Sys::Syslog), user, uucp, and local0 to local7,
inclusive.
Valid level names are): alert, crit, debug, emerg, err, error(8,n) (deprecated
synonym for err), info(1,5,n), notice, panic (deprecated synonym for emerg),
warning, warn (deprecated synonym for warning). For the priority order
and intended purposes of these levels, see syslog(2,3,5,3 Sys::Syslog)(3).
EXAMPLES
logger System rebooted
logger -p local0.notice -t HOSTIDM -f /dev/idmc
SEE ALSO
syslog(2,3,5,3 Sys::Syslog)(3), syslogd(8)
STANDARDS
The logger command is expected to be IEEE Std 1003.2 (``POSIX.2'') com-
patible.
4.3 Berkeley Distribution June 6, 1993 4.3 Berkeley Distribution