logger
TLDR
Log a message
$ logger [message]
Log from stdin$ echo [message] | logger
Log to remote server$ echo [message] | logger -n [hostname] -P [port]
Log with custom tag$ echo [message] | logger -t [tag]
Log with priority$ echo [message] | logger -p user.warning
SYNOPSIS
logger [options] [message]
DESCRIPTION
logger adds entries to the system log (syslog). It is useful for logging from shell scripts or adding custom messages to system logs for debugging and monitoring.
PARAMETERS
-n, --server HOST
Send to remote syslog server-P, --port PORT
Remote server port (default: 514)-t, --tag TAG
Mark messages with tag (default: username)-p, --priority PRIORITY
Log priority (facility.level, default: user.notice)-s, --stderr
Also output to stderr-f, --file FILE
Log contents of file-i
Include process ID
PRIORITY LEVELS
Facilities: auth, cron, daemon, kern, local0-7, mail, news, syslog, user, uucp
Levels: emerg, alert, crit, err, warning, notice, info, debug
SEE ALSO
journalctl(1), syslog(3), rsyslog(8)
