logger — a shell command interface to the syslog(3) system log module
logger
[options]
[message]
logger makes entries in the system log. It provides a shell command interface to the syslog(3) system log module.
−n
, −−server
serverWrite to the specified remote syslog server instead of to
the builtin syslog routines. Unless −−udp
or −−tcp
is specified the
logger will first try to use UDP, but if it fails a TCP
connection is attempted.
−d
, −−udp
Use datagram (UDP) only. By default the connection
is tried to syslog port defined
in /etc/services, which is often 514
.
−T
, −−tcp
Use stream (TCP) only. By default the connection is
tried to syslog-conn
port
defined in /etc/services, which is often 601
.
−P
, −−port
portUse the specified port.
−i
, −−id
Log the process ID of the logger process with each line.
−f
, −−file
fileLog the contents of the specified file. This option cannot be combined with a command-line message.
−h
, −−help
Display a help text and exit.
−p
, −−priority
priorityEnter the message into the log with the specified
priority.
The priority may be specified numerically or as a
facility.level
pair.
For example, −p
local3.info
logs the message as informational in the local3
facility. The default is user.notice
.
−s
, −−stderr
Output the message to standard error as well as to the system log.
−t
, −−tag
tagMark every line to be logged with the specified tag.
−u
, −−socket
socketWrite to the specified socket instead of to the builtin syslog routines.
−V
, −−version
Display version information and exit.
−−
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 (can't be
generated from user process), lpr,mail,
news,security (deprecated
synonym for auth),syslog,
user,uucp,
and local0tolocal7, 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).
logger System rebooted
logger −p local0.notice −t HOSTIDM −f /dev/idmc
logger −n loghost.example.com System rebooted
The logger command is part of the util-linux package and is available from Linux Kernel Archive
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 are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 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. 4. Neither the name of the University nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. (#)logger.1 8.1 (Berkeley) 6/6/93 Section on valid facility and level strings added by and1000debian.org, 26 Oct 1997. |