LOGGER(1) BSD Reference Manual LOGGER(1)
logger - make entries in the system log
logger [-is] [-f file] [-p pri] [-t tag] [message ...]
The logger utility provides a shell command interface to the syslog(3) system log module. The options are as follows: -i Log the process ID of the logger process with each line. -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 ex- ample, "-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. -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 or >0 if an error occurred.
$ logger System rebooted $ logger -p local0.notice -t HOSTIDM -f /dev/idmc
syslog(3), syslogd(8)
The logger utility conforms to IEEE Std 1003.2-1992 ("POSIX.2").
Starting with MirBSD #10, the logger utility splits the data to log into chunks of 512 bytes each, so that further truncation does not occur un- less most of the input octets are vis(3) expanded, i.e. non-printable. MirBSD #10-current September 28, 2007 1