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LOGGER(1) General Commands Manual LOGGER(1) NAME logger - make entries in the system log SYNOPSIS logger [-cins] [-d SD] [-f file] [-m msgid] [-p pri] [-t tag] [message ...] DESCRIPTION logger provides a shell command interface to the syslog(3) system log module. Options: -c Log to console as a fallback (LOG_CONS): if the message cannot be passed to syslogd(8), the message is written to /dev/console. -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. EXIT STATUS 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"). NetBSD 10.99 June 25, 2020 NetBSD 10.99