logger
—
make entries in the system log
logger |
[-cins ] [-d
SD] [-f
file] [-m
msgid] [-p
pri] [-t
tag] [message ...] |
logger
provides a shell command interface to the
syslog(3) system log module.
Options:
-c
- Log to console (
LOG_CONS
).
-d
sd
- Log this in the structured data (SD) field. (sd has
to be passed as one argument and will require careful quoting when used
from the shell.)
-f
file
- Log the specified file.
-i
- Log the process id of the logger process with each line
(
LOG_PID
).
-m
msgid
- The MSGID used for the message.
-n
- Open log file immediately (
LOG_NDELAY
).
-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”.
-s
- Log the message to standard error, as well as the system log
(
LOG_PERROR
).
-t
tag
- Mark every line in the log with the specified
tag.
- 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.
logger System rebooted
logger -p local0.notice -t HOSTIDM -f /dev/idmc
The logger
utility conforms to IEEE Std
1003.2-1992 (“POSIX.2”).