2022-09-02
Write a Syslog Entry From a Bash Script
If you want your bash script to write message to syslog you can use logger utility. Here is an example of usage.
logger -t runonce -p local3.info "$file"
where:
-tis a tag for the line-ppriority (local3.info- INFO level message)- the last argument
"$file"is the message
For more information see the man page for logger:
LOGGER(1) General Commands Manual LOGGER(1)
NAME
logger – make entries in the system log
SYNOPSIS
logger [-is] [-f file] [-p pri] [-t tag] [message ...]
DESCRIPTION
Logger 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.
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.
EXAMPLES
logger System rebooted
logger -p local0.notice -t HOSTIDM -f /dev/idmc
SEE ALSO
syslog(3), syslogd(8)
STANDARDS
The logger utility conforms to IEEE Std 1003.2-1992 (“POSIX.2”).
BSD 4.3