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.
−ffile
Log the specified file.
−ppri
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.''
−ttag
Mark every line in the log with the specified
tag.
−usock
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 (deprecated synonym for err), info, notice, panic
(deprecated synonym for emerg), warning, warn (deprecated
synonym for warning). For the priority order and intended
purposes of these levels, see syslog(3).
EXAMPLES
logger System rebooted
logger −p local0.notice −t HOSTIDM −f /dev/idmc
Copyright (c) 1983, 1990, 1993
The Regents of the University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
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notice, this list of conditions and the following disclaimer.
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notice, this list of conditions and the following disclaimer in the
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3. All advertising materials mentioning features or use of this software
must display the following acknowledgement:
This product includes software developed by the University of
California, Berkeley and its contributors.
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may be used to endorse or promote products derived from this software
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THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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SUCH DAMAGE.
@(#)logger.1
8.1 (Berkeley) 6/6/93
Section on valid facility and level strings added by
and1000@debian.org, 26 Oct 1997.